TroubleshootingGuide ACS 2k Ctrl

ABB Switzerland Ltd. All Rights Reserved.

ACS 2000 AD Medium Voltage Drives

Troubleshooting manual

Software Version: LDCI5420 Release Date: 01/11/2013

2/72 Version LDCI5420 Troubleshooting manual

LDCI5420 ACS 2000 AD 3/72

ABB reserves all rights to this document. Misuse, in particular duplication and forwarding to third parties, is not permitted.

This document has been checked with due care and attention. However, should the user find any errors, these should be reported to ABB.

ABB aims to maintain the most modern standard, therefore, entries in this manual may differ from the actual product.



Table of Contents

Table of Contents ................................................................................................................. 4 Faults ................................................................................................................................................... 7 Alarms ............................................................................................................................................... 65

LDCI5420 ACS 2000 AD 5/72


If information is required beyond the instructions in this manual, contact ABB as follows:

ABB Switzerland Ltd

Medium Voltage Drives

CH-5300 Turgi, Switzerland

Phone:+41 844 845 845

Fax:+41 58 589 2984

[email protected]

LDCI5420 ACS 2000 AD 7/72

Faults

Panel Text AMC: Fault Class 1 Description Class 1 Fault detected in motor control software. Fault reaction is pulse removal (stop motor),

opening of MCB and discharging of DC-link Causes Reasons for Class 1 Faults are mainly faults concerning DC-circuit e.g. DC overvoltage and NP-

overvoltage. Rectification Check for other related faults in the fault buffer. Each faults results in two records in fault buffer:

fault class (this one) and fault message (other fault texts in this file) FaultClass INU FC1 FaultClass ARU Not Appl Fault Word 183.32: FW Generic Faults Bit B0 Related Parameters Related IO Panel Text AMC: Fault Class 2 Description Class 2 Fault detected in motor control software. Fault reaction is pulse removal (stop motor), if

drive was already energized MCB stays closed and DC-link charged Causes Reasons for Class 2 Faults are mainly faults that do not concern the DC circuit e.g. overspeed,

overcurrent, speed measurements Rectification Check for other related faults in the fault buffer. Each faults results in two records in fault buffer:

fault class (this one) and fault message (other fault texts in this file) FaultClass INU FC2 FaultClass ARU Not Appl Fault Word 183.32: FW Generic Faults Bit B1 Related Parameters Related IO Panel Text Autorestart Loop Description Trips the drive if the maximum number of auto-restart attempts is exceeded. Causes - Wrong parameter setting

. - Depends on the fault that started the auto-restart sequence.

Rectification - Check parameter. FaultClass INU FC2 FaultClass ARU Fault Word 183.33: FW1 Generic Fault Bit B1 Related Parameters Related IO Panel Text Autorestart Timeout Description Trips the drive if an auto-restart sequence takes too long. Causes - Wrong parameter setting

. - Depends on the fault that started the auto-restart sequence.

Rectification - Check parameter. FaultClass INU FC2 FaultClass ARU Fault Word 183.33: FW1 Generic Fault Bit B0 Related Parameters Related IO



Panel Text CBU Short Circuit Description Short circuit in DC link. Causes A short circuit has been detected in the DC link with MCB in status CLOSED. Rectification - Check MCB status.

- Contact ABB Service organisation. FaultClass INU FC1 FT FaultClass ARU Fault Word 183.20: FW Short Circuit Bit B0 Related Parameters Related IO Panel Text CROWBAR FAULT Description When fire through happens, crowbar thyristors are not switched on. DC link voltage is not

decreasing, or it is decreasing too slowly. Causes - Wrong connection of optical fire through link.

- Defective crowbar drive. - Defective crowbar thyristors.

Rectification - Check optical fire through link. - Check crowbar drive. - Check crowbar thyristors. - Contact ABB service organization.

FaultClass INU FC1 FaultClass ARU Fault Word 183.41: FW2 Other Bit B3 Related Parameters Related IO Panel Text DC OV StatPhaseTest Description DC overvoltage during static phase test. Causes Supply voltage of DC link is too high. Rectification Decrease supply voltage below trip limit. FaultClass INU FC2 FaultClass ARU Fault Word 183.42: FW3 DC LinkVolt Bit B9 Related Parameters Related IO Panel Text DC Overvoltage Description One of the half DC link voltages exceeds the trip level. Causes - ARU fault.

- Internal parameter settings. - Defective circuit board. - Communication faulty.

Rectification - Check ARU faults. - Check for other related faults.

FaultClass INU FC2 FaultClass ARU Fault Word 183.12: FW DC LinkVolt Bit B0 Related Parameters Related IO Panel Text DC OvervoltageMCB Description One of the half DC link voltages exceeds the fault class 1 trip level. Causes - mains supply voltage high

. - parameter settings. - defective circuit board. - communication disturbed.

Rectification - check supply voltage. - check parameter 186.04.

FaultClass INU FC1 FaultClass ARU Fault Word 183.12: FW DC LinkVolt Bit B1 Related Parameters Related IO

LDCI5420 ACS 2000 AD 9/72

Panel Text DC Undervoltage Description The full DC link voltages falls below the trip level. Causes - ARU fault.

- Internal parameter settings. - Defective circuit board. - Communication faulty.

Rectification - Check ARU faults. - Check for other related faults.

FaultClass INU FC1 FaultClass ARU Fault Word 183.12: FW DC LinkVolt Bit B2 Related Parameters Related IO Panel Text Delayed GUSP AuxPow Description At laest one GUSP aux power failure is pending for more than 1 minute. Causes - GUSP aux power problem.

- Fiber optic between GUSP and INT faulty. Rectification - Check auxiliary supply and fuses

. - Check auxiliary supply wiring. - Check fiber optic cables and connections.

FaultClass INU FC1 FaultClass ARU Fault Word 183.07: FW CntrlHardware Bit B0 Related Parameters Related IO Panel Text FLASH START FAULT Description Flash start for resynchronization was not successful because the algorithm did not get enough

current response from the machine when applying short circuits. Causes - Machine is not rotating

- Machine flux is too small Rectification - Check whether the interval during which the machine has no supply is too long

- Contact ABB service organization FaultClass INU FC2 FaultClass ARU Not Appl. Fault Word 183.41: FW2 Other Bit B00 Related Parameters Related IO Panel Text INT: Fault Class 1 Description There is a fault class 1 fault pending on an INT board. Causes Any fault detected by an INT opening MCB. Rectification Check fault buffer for related INT faults. FaultClass INU FC1 FaultClass ARU Fault Word 183.32: FW Generic Faults Bit B2 Related Parameters Related IO Panel Text INT: Fault Class 2 Description There is a fault class 2 fault pending on an INT board. Causes Any fault detected by an INT NOT opening MCB. Rectification Check fault buffer for related INT faults. FaultClass INU FC2 FaultClass ARU Fault Word 183.32: FW Generic Faults Bit B3 Related Parameters Related IO



Panel Text INT: MCB Trip Req Description INT was asked to open MCB. Causes Application or Control has requested to open the MCB via INT. Rectification This is not a fault but only information. FaultClass INU FC1 FaultClass ARU Fault Word 183.32: FW Generic Faults Bit B11 Related Parameters Related IO Panel Text INT0 1STFL:ASYMCUR Description First fault of MainINT: Sum of the three phase currents is exceeding the trip level. Causes - Earth fault in the galvanically connected system

- Common mode indcutor of Direct To Link filter was saturating - PPCS communication error - Fiber optic link faulty - Measurement device defective (Current Transducer, PhaseINT)

Rectification 1 Check insulation level of the galvanic system (transformer, cables, ACS2000, motor). (2 Check fiber optic cables and connections between MainINT board and all PhaseINT boards) (3 Check the current transducers and PhaseINT boards)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 23 Related Parameters Related IO Panel Text INT0 1STFL:COMER A1 Description First fault of MainINT: Communication error in PPCC link from PhaseINT of Inverter 1 Phase A Causes PPCC link between MainINT and PhaseINT of Inverter 1 Phase A is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 49 Related Parameters Related IO Panel Text INT0 1STFL:COMER A2 Description First fault of MainINT: Communication error in PPCC link from PhaseINT Inverter 2 Phase A Causes PPCC link between MainINT and PhaseINT of Inverter 2 Phase A is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 52 Related Parameters Related IO Panel Text INT0 1STFL:COMER B1 Description First fault of MainINT: Communication error in PPCC link from PhaseINT Inverter 1 Phase B Causes PPCC link between MainINT and PhaseINT of Inverter 1 Phase B is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 50 Related Parameters Related IO

LDCI5420 ACS 2000 AD 11/72

Panel Text INT0 1STFL:COMER B2 Description First fault of MainINT: Communication error in PPCC link from PhaseINT Inverter 2 Phase B Causes PPCC link between MainINT and PhaseINT of Inverter 2 Phase B is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 53 Related Parameters Related IO Panel Text INT0 1STFL:COMER C1 Description First fault of MainINT: Communication error in PPCC link from PhaseINT Inverter 1 Phase C Causes PPCC link between MainINT and PhaseINT of Inverter 1 Phase C is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 51 Related Parameters Related IO Panel Text INT0 1STFL:COMER C2 Description First fault of MainINT: Communication error in PPCC link from PhaseINT Inverter 2 Phase C Causes PPCC link between MainINT and PhaseINT of Inverter 2 Phase C is faulty. Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check PhaseINT and MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 54 Related Parameters Related IO Panel Text INT0 1STFL:COMER FT Description First fault of MainINT: Communication error in Firing Through link Causes - Fiber optic connected to FT receiver is damaged Rectification 1 Check fiber optic cables and connections

2 Check if Crowbar Drive is powerd up FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 60 Related Parameters Related IO Panel Text INT0 1STFL:DCOVL FT Description First fault of MainINT: Firing Through due to overvoltage in lower DC link half Causes - Too high voltage in the lower half of DC link exceeding the Overvoltage Firing Trough limit.

- PPCS communication error - Fiber optic link faulty - Measurement device defective (HVD, PhaseINT)

Rectification 1 Use datalogger to check if there was too high voltage 2 Check for other related faults (3 Check fiber optic cables and connections between MainINT and PhaseINT of Inverter 1 Phase B) (4 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B)

FaultClass INU FC1 FT FaultClass ARU FC1 FT Fault Word 183.37: INT0 First Fault Bit 83 Related Parameters Related IO



Panel Text INT0 1STFL:DCOVU FT Description First fault of MainINT: Firing Through due to overvoltage in upper DC link half Causes - Too high voltage in the upper half of DC link exceeding the Overvoltage Firing Trough limit.

- PPCS communication error - Fiber optic link faulty - Measurement device defective (HVD, PhaseINT)

Rectification 1 Use datalogger to check if there was too high voltage 2 Check for other related faults (3 Check fiber optic cables and connections between MainINTand PhaseINT of Inverter 1 Phase A) (4 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A)

FaultClass INU FC1 FT FaultClass ARU FC1 FT Fault Word 183.37: INT0 First Fault Bit 82 Related Parameters Related IO Panel Text INT0 1STFL:EAF Superv Description First fault of MainINT: EAF supervision Causes - wrong parameter setting for 111.30 EAF Supervision (EAF board not existing)

- link error between EAF board and MainINT - OV detected by EAF board - EAF board error

Rectification 1. Check if the supervision has to be active. 2. Check EAF board and the link to MainINT board. 3. Contact ABB support line.

FaultClass INU FC1 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 24 Related Parameters Related IO Panel Text INT0 1STFL:FTC FT Description First fault of MainINT: INT has received Firing Through command via FT Link Causes FT started by INU control/MainINT, caused by a short circuit or overvoltage Rectification Check fault list of INU FaultClass INU FC1 FT FaultClass ARU FC1 FT Fault Word 183.37: INT0 First Fault Bit 72 Related Parameters Related IO Panel Text INT0 1STFL:IPS 1 Description First fault of INT: Insulated power supply failure. Causes MainINT IPS supervision does not receive any signal from IPS over fibre optic connection. Rectification - Check insulated power supply output voltages

- Check fibre optic connection between IPS and MainINT board - Check power consumptions of PhaseINTs and CrowbarDrive

FaultClass INU FC1 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 20 Related Parameters Related IO Panel Text INT0 1STFL:IPS 2 Description First fault of INT: Insulated power supply (2nd unit) failure. Causes MainINT IPS supervision does not receive any signal from IPS over fibre optic connection. Rectification - Check insulated power supply output voltages

- Check fibre optic connection between IPS and MainINT board - Check power consumptions of PhaseINTs and CrowbarDrive

FaultClass INU FC1 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 21 Related Parameters Related IO

LDCI5420 ACS 2000 AD 13/72

Panel Text INT0 1STFL:OV LO A1 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase A of Inverter 1

(voltage difference between lower DC link half and phase capacitor) Causes - Short of phase capacitor

- Instability in control - PPCS communication error - Fiber optic link faulty - Measurement device defective (HVD, PhaseINT)

Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and B)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 10 Related Parameters Related IO Panel Text INT0 1STFL:OV LO A2 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase A of Inverter 2



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and Inverter 2 Phase A) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and Inverter 2 Phase A)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 13 Related Parameters Related IO



Panel Text INT0 1STFL:OV LO B1 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase B of Inverter 1



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 11 Related Parameters Related IO Panel Text INT0 1STFL:OV LO B2 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase B of Inverter 2



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and Inverter 2 Phase B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and Inverter 2 Phase B)


LDCI5420 ACS 2000 AD 15/72

Panel Text INT0 1STFL:OV LO C1 Description First fault of MainINT: Overvoltage over independent devices S21 or S32 in Phase C of Inverter

1 (voltage difference between lower DC link half and phase capacitor) Causes - Short of phase capacitor


Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and C)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 12 Related Parameters Related IO Panel Text INT0 1STFL:OV LO C2 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase C of Inverter 2



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and Inverter 2 Phase C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and Inverter 2 Phase C)




Panel Text INT0 1STFL:OV UP A1 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase A of Inverter 1

(voltage difference between upper DC link half and phase capacitor) Causes - Short of phase capacitor


Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 1 Related Parameters Related IO Panel Text INT0 1STFL:OV UP A2 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase A of Inverter 2



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and Inverter 2 Phase A) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and Inverter 2 Phase A)


LDCI5420 ACS 2000 AD 17/72

Panel Text INT0 1STFL:OV UP B1 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase B of Inverter 1



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and B)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 2 Related Parameters Related IO Panel Text INT0 1STFL:OV UP B2 Description First fault of MainINT: Overvoltage over independent devices S21 or S32 in Phase B of Inverter

2 (voltage difference between upper DC link half and phase capacitor) Causes - Short of phase capacitor


Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and Inverter 2 Phase B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and Inverter 2 Phase B)




Panel Text INT0 1STFL:OV UP C1 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase C of Inverter 1



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and C)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 3 Related Parameters Related IO Panel Text INT0 1STFL:OV UP C2 Description First fault of MainINT: Overvoltage over independent device S21 or S32 in Phase C of Inverter 2



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and Inverter 2 Phase C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and Inverter 2 Phase C)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 6 Related Parameters Related IO Panel Text INT0 1STFL:PF INT Description First fault of MainINT: Auxiliary power failure on INT board Causes - Loss of auxiliary power

- Damaged INT Rectification 1 Check auxiliary power supply voltage, connections and fuses

2 Check MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 19 Related Parameters Related IO

LDCI5420 ACS 2000 AD 19/72

Panel Text INT0 1STFL:PHASE A1 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 1 Phase A Causes Rectification Check fault logger entries of INT1. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 63 Related Parameters Related IO Panel Text INT0 1STFL:PHASE A2 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 2 Phase A Causes Rectification Check fault logger entries of INT4. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 66 Related Parameters Related IO Panel Text INT0 1STFL:PHASE B1 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 1 Phase B Causes Rectification Check fault logger entries of INT2. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 64 Related Parameters Related IO Panel Text INT0 1STFL:PHASE B2 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 2 Phase B Causes Rectification Check fault logger entries of INT5. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 67 Related Parameters Related IO Panel Text INT0 1STFL:PHASE C1 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 1 Phase C Causes Rectification Check fault logger entries of INT3. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 65 Related Parameters Related IO Panel Text INT0 1STFL:PHASE C2 Description First fault of MainINT: Fault detected by PhaseINT of Inverter 2 Phase C Causes Rectification Check fault logger entries of INT6. FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.37: INT0 First Fault Bit 68 Related Parameters Related IO



Panel Text INT0 1STFL:PUPA FLASH Description First fault of MainINT: Pulse patterns stored on the pulse pattern flash memory are corrupted. Causes Pulse patterns stored on the pulse pattern flash memory are corrupted or the flash is empty. Rectification Check if valid pulse patterns are on the flash memory and reprogramm them if not. FaultClass INU FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 84 Related Parameters Related IO Panel Text INT0 1STFL:SC MI1 E Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in lower ARU

commutation group of Inverter 1 Causes - Converter short circuit in lower half of ARU Rectification - Check fault logger of the ARU, because the fault is external

- Check ARU phase modules respecting short circuit, especially if there are DESAT faults in the ARU fault logger - Check other parts connected to the DC after lower clamp choke of the ARU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 32 Related Parameters Related IO Panel Text INT0 1STFL:SC MI1 I Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in lower INU

commutation group of Inverter 1 Causes - Converter short circuit in lower half of INU Rectification - Check INU phase modules respecting short circuit, especially if there are DESAT faults in the

fault logger - Check other parts connected to the DC after lower clamp choke of the INU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 26 Related Parameters Related IO Panel Text INT0 1STFL:SC MI2 E Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in lower ARU

commutation group of Inverter 2 Causes - Converter short circuit in lower half of ARU Rectification - Check fault logger of the ARU, because the fault is external

- Check INU phase modules respecting short circuit, especially if there are DESAT faults in the ARU fault logger - Check other parts connected to the DC after lower clamp choke of the ARU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 34 Related Parameters Related IO

LDCI5420 ACS 2000 AD 21/72

Panel Text INT0 1STFL:SC MI2 I Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in lower INU

commutation group of Inverter 2 Causes - Converter short circuit in lower half of INU Rectification - Check INU phase modules respecting short circuit, especially if there are DESAT faults in the

fault logger - Check other parts connected to the DC after lower clamp choke of the INU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 28 Related Parameters Related IO Panel Text INT0 1STFL:SC PL1 E Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in upper ARU

commutation group of Inverter 1 Causes - Converter short circuit in upper half of ARU Rectification - Check fault logger of the ARU, because the fault is external

- Check ARU phase modules respecting short circuit, especially if there are DESAT faults in the INU fault logger - Check other parts connected to the DC after upper clamp choke of the ARU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 31 Related Parameters Related IO Panel Text INT0 1STFL:SC PL1 I Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in upper INU

commutation group of Inverter 1 Causes - Converter short circuit in upper half of INU Rectification - Check INU phase modules respecting short circuit, especially if there are DESAT faults in the

fault logger - Check other parts connected to the DC after upper clamp choke of the INU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 25 Related Parameters Related IO Panel Text INT0 1STFL:SC PL2 E Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in upper ARU

commutation group of Inverter 2 Causes - Converter short circuit in upper half of ARU Rectification - Check fault logger of the ARU, because the fault is external

- Check INU phase modules respecting short circuit, especially if there are DESAT faults in the ARU fault logger - Check other parts connected to the DC after upper clamp choke of the ARU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 33 Related Parameters Related IO



Panel Text INT0 1STFL:SC PL2 I Description First fault of MainINT: Short circuit detected by di/dt measurement device (VLSCD) in upper INU

commutation group of Inverter 2 Causes - Converter short circuit in upper half of INU Rectification - Check INU phase modules respecting short circuit, especially if there are DESAT faults in the

fault logger - Check other parts connected to the DC after upper clamp choke of the INU - Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 27 Related Parameters Related IO Panel Text INT0 1STFL:SCSUM1 E Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in lower ARU

commutation group of Inverter 1 Causes - Fiber optic link from VLSCD to MainINT board faulty

- VLSCD or MainINT board failure - Broken clamp diode - Internal parameter setting

Rectification 1 Check clamp diode 2 Check fiber optic cables and connections to VLSCD board 3 Check di/dt monitor limit (191.08 DI/DT-MON ILIM)

FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 44 Related Parameters Related IO Panel Text INT0 1STFL:SCSUM1 I Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in lower INU commutation

group of Inverter 1 Causes - Fiber optic link from VLSCD to MainINT board faulty



FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 38 Related Parameters Related IO Panel Text INT0 1STFL:SCSUM2 E Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in lower ARU





LDCI5420 ACS 2000 AD 23/72

Panel Text INT0 1STFL:SCSUM2 I Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in lower INU commutation




FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 40 Related Parameters Related IO Panel Text INT0 1STFL:SCSUP1 E Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in upper ARU




FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 43 Related Parameters Related IO Panel Text INT0 1STFL:SCSUP1 I Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in upper INU commutation




FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 37 Related Parameters Related IO Panel Text INT0 1STFL:SCSUP2 E Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in upper ARU







Panel Text INT0 1STFL:SCSUP2 I Description First fault of MainINT: di/dt measurement device (VLSCD) malfunction in upper INU commutation




FaultClass INU FC2 FaultClass ARU Fault Word 183.37: INT0 First Fault Bit 39 Related Parameters Related IO Panel Text INT0 2nd EarthFault Description Earth fault detected in the galvanically connected system. (Sum of the three phase currents is

exceeding the trip level.) Causes - Earth fault

- Protection Firing (The fault can appear in the fault logger after a Firing Through) - Common mode indcutor of Direct To Link filter was saturating - PPCS communication error - Fiber optic link faulty - Measurement device defective (Current Transducer, PhaseINT)

Rectification 1 Check for other related faults 2 Check insulation level of the galvanic system (transformer, cables, ACS, motor). (3 Check fiber optic cables and connections between MainINT board and all PhaseINT boards) (4 Check the current transducers and PhaseINT boards)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.16: FW Current Bit B4 Related Parameters Related IO Panel Text INT0 AuxiliaryPower Description Auxiliary power failure on MainINT. Causes - Loss of auxiliary power

- Damaged INTboard Rectification 1 Check auxiliary power supply voltage, connections and fuses

2 Check MainINT board FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.07: FW CntrlHardware Bit B1 Related Parameters Related IO Panel Text INT0 EAF Supervision Description Earth fault detected by EAF board.

The supervision is enabled/disabled by parameter 111.30 EAF Supervision. (This supervision shall be always disabled, because EAF board is not existing)

Causes - wrong parameter setting for 111.30 EAF Supervision (EAF board not existing) - link error between EAF board and MainINT - OV detected by EAF board - EAF board error

Rectification 1. Check if the supervision is activated (111.30 EAF Supervision = TRUE). If yes, set it to FALSE. 2. Contact ABB support line.

FaultClass INU FC1 FaultClass ARU Fault Word 183.41: FW2 Other Bit B5 Related Parameters Related IO

LDCI5420 ACS 2000 AD 25/72

Panel Text INT0 FT Link Description Communication error in Firing Through link Causes - Fiber optic connected to FT receiver is damaged

- Crowbar board has no power - One of the redundant Firing through links from AFE to Crowbar board is broken

Rectification 1 Check fiber optic cables and connections in ring loop (INU MainINT -> AFE MainINT -> CrowBarBoard -> INU MainINT) 2 Check if Crowbar board is powered up

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.02: FW Communication Bit B3 Related Parameters Related IO Panel Text INT0 GUSP AuxPower Description Auxiliary voltage supply malfunction in IPS Causes - Fault does not exist in ARU SW.

- Communication error between AMC and MainINT Rectification 1 Check cable connection between AMC and MainINT

2 Contact ABB support line FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.07: FW CntrlHardware Bit B2 Related Parameters Related IO Panel Text INT0 LSU DiodeFault Description Diode error detected by EAF board.

This function is active for DFE confuguration. Causes - Diode fault in LSU

- Link error - EAF board error - control issue (large NP deviation, ...)

Rectification - Check EAF board and the link to MainINT board. - Contact ABB support line.

FaultClass INU FC1 FaultClass ARU Fault Word 183.07: FW CntrlHardware Bit B5 Related Parameters Related IO Panel Text INT0 Overvoltage FT Description Firing Through because of too high DC link voltage. Causes - Too high voltage in the upper or lower half of DC link exceeding the overvoltage Firing Trough

limit. - PPCS communication error - Fiber optic link faulty - Measurement device defective (HVD, PhaseINT)

Rectification 1 Use datalogger to check if there was too high voltage 2 Check for other related faults (3 Check fiber optic cables and connections between MainINT PhaseINT of Inverter 1 phase A (upper DC) and/or B (lower DC) (4 Check HVD board, measurement cables and PhaseINT board of Inverter 1 phase A (upper DC) and or B(lower DC))

FaultClass INU FC1 FT FaultClass ARU FC1 FT Fault Word 183.13: FW1 DC LinkVolt Bit B8 Related Parameters Related IO



Panel Text INT0 PPCS Link Description MainINT has detected a problem in at least one of the PPCS communication links to PhaseINT's Causes PPCC link between MainINT and at least one of the PhaseINT's is faulty Rectification 1 Check the optical fiber connection between MainINT and all PhaseINT's

2 Check if MainINT or any of the PhaseINT's is broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.02: FW Communication Bit B2 Related Parameters Related IO Panel Text INT0 PUPA Corrupted Description The pulse patterns stored on the pulse pattern flash memory are corrupted. Causes - The pulse patterns were modified in some way.

- The flash memory is empty or no valid data is on the memory. Rectification - Valid pulse patterns must be programmed again onto the pulse pattern flash memory. FaultClass INU FaultClass ARU Fault Word 183.07: FW CntrlHardware Bit B14 Related Parameters Related IO Panel Text INT0 S21/32 OV LO A Description Overvoltage over independent device S21 or S32 in Phase A (voltage difference between lower

DC link half and phase capacitor) Causes - Short of phase capacitor


Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and B and Inverter 2 Phase A) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and B and Inverter 2 Phase A)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B8 Related Parameters Related IO

LDCI5420 ACS 2000 AD 27/72

Panel Text INT0 S21/32 OV LO B Description Overvoltage over independent devices S21 or S32 in Phase B (voltage difference between lower



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and Inverter 2 Phase B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and Inverter 2 Phase B)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B9 Related Parameters Related IO Panel Text INT0 S21/32 OV LO C Description Overvoltage over independent device S21 or S32 in Phase C (voltage difference between lower



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of lower DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase B and C and Inverter 2 Phase C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase B and C and Inverter 2 Phase C)




Panel Text INT0 S21/32 OV UP A Description Overvoltage over independent device S21 or S32 in Phase A (voltage difference between upper



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and Inverter 2 Phase A) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and Inverter 2 Phase A)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B5 Related Parameters Related IO Panel Text INT0 S21/32 OV UP B Description Overvoltage over independent device S21 or S32 in Phase B (voltage difference between upper



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and B and Inverter 2 Phase B) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and B and Inverter 2 Phase B)


LDCI5420 ACS 2000 AD 29/72

Panel Text INT0 S21/32 OV UP C Description Overvoltage over independent device S21 or S32 in Phase C (voltage difference between upper



Rectification 1 Check datalogger - Phase capacitor voltage is decreasing fast, several 100 volts in 100 us -> Phase capacitor is shorted. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Voltage of upper DC link half is increasing (e.g. because INU tripped) or phase capacitor is decreasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults 3 Contact ABB support line (4 Check fiber optic cables and connections between MainINT and PhaseINT boards of Inverter 1 Phase A and C and Inverter 2 Phase C) (5 Check HVD board, measurement cables and PhaseINT board of Inverter 1 Phase A and C and Inverter 2 Phase C)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B7 Related Parameters Related IO Panel Text INT0 ShortCircuit Description Short circuit detected by di/dt measurement device (VLSCD) Causes - Converter short circuit

- Protection Firing (The fault always appears in the fault logger after a Firing Through) - Defective circuit board

Rectification 1 Check for other related faults 2 Check phase modules respecting short circuit, especially if there are DESAT faults in the fault logger 3 Check other parts connected to the DC after clamp choke 4 Contact ABB support line

FaultClass INU FC1 FT FaultClass ARU FC1 FT Fault Word 183.20: FW Short Circuit Bit B1 Related Parameters Related IO Panel Text INT1 1STFL:COMER A Description First fault of PhaseINT Inverter 1 Phase A: Communication error in PPCC link A Causes PPCC link A between MainINT and PhaseINT is faulty Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check if MainINT or PhaseINT are broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 1 Related Parameters Related IO



Panel Text INT1 1STFL:DESAT Description First fault of PhaseINT Inverter 1 Phase A: At least one out of 12 IGBTs desaturated. Causes - Short circuit (within phase module)

- Gate Driver output on PhaseINT shorted (by IGBT Gate Drive failure or faulty PhaseINT) Rectification Check PhaseINT Fault Register 3 (171.33 (ARU) or 172.33 (INU)) and 4 (171.34 (ARU) or

172.34 (INU)) to see which Gate Drive detected a desaturation (parameter window needs to be uploaded first): Fault Register 3: B0 -> S22, B1-> S21, B2 -> S32, B3 -> S31, B4 -> S12, B5 -> S11, B6 -> SNP12, B7 -> SNP11 Fault Register 4: B0 -> SNP22, B1 -> SNP21, B2 -> S42, B3 -> S41 1 Check if the phase also has a Gate Driver short fault ("INT1 HW GD Short"). Yes -> Check corresponding fault description. 2 Check if a short within phase module exists. Yes -> Exchange the Semiconductor Modules (whole Heat sink). 3 Contact ABB support line

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 7 Related Parameters Related IO Panel Text INT1 1STFL:GADRI SC Description First fault of PhaseINT Inverter 1 Phase A: At least one out of 6 Gate Driver channels detected

an overcurrent and was disabled Causes Gate Driver output on PhaseINT shorted (by IGBT Gate Drive or faulty PhaseINT) Rectification Check PhaseINT fault register 9 (171.38 (ARU) or 172.38 (INU)) to see which Gate Driver

channel is shorted (parameter window needs to be uploaded first): B0 -> S2, B1 -> S3, B2 -> S1, B3 -> SNP1, B4 -> SNP2, B5 -> S4 1 Check if IGBT Gate Drive has a short. Yes -> Exchange the Gate Drive. 2 Check if PhaseINT is broken. Yes -> Exchange PhaseINT. 3 Check if a short within phase module exists. Yes -> Exchange the Semiconductor Modules (whole Heat sink). 4 Contact ABB support line

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 9 Related Parameters Related IO Panel Text INT1 1STFL:GATEDRIV Description First fault of PhaseINT Inverter 1 Phase A: At least one out of 6 Gate Drive link driver on the

PhaseINT board is defective Causes Gate Driver output on PhaseINT board is broken. Rectification Check PhaseINT Fault Register 7 (171.37 (ARU) or 172.37 (INU)) to see which Gate Drive link

driver is broken (parameter window needs to be uploaded first): B0 -> S2, B1 -> S3, B2 -> S1, B3 -> SNP1, B4 -> SNP2, B5 -> S4 PhaseINT board is broken and has to be exchanged


LDCI5420 ACS 2000 AD 31/72

Panel Text INT1 1STFL:OV DC U Description First fault of PhaseINT Inverter 1 Phase A: Overvoltage in upper DC link half Causes - ARU lost control over DC link voltage, due to fast load change of INU or network condition

change - Instability in control - Internal parameter settings - Measurement device defective (HVD, PhaseINT)

Rectification 1 Check if mains supply voltage is within limits 2 Check for other related faults (3 Check HVD board, measurement cables and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 4 Related Parameters Related IO Panel Text INT1 1STFL:OV PHCAP Description First fault of PhaseINT Inverter 1 Phase A: Phase capacitor overvoltage Causes - Short between DC link and phase capacitor

- Instability in control - Internal parameter settings - Measurement device defective (HVD, PhaseINT)

Rectification 1 Check datalogger - Phase capacitor voltage is increasing fast, several 100 volts in 100 us -> Possible short within phase module. Check if an IGBT in the phase module is broken and exchange the Semiconductor Modules (whole Heat sink) if necessary. - Phase capacitor is increasing slowly, about 100 volts in 100 us -> Instability in control. The drive can be restarted. 2 Check for other related faults (3 Check HVD board, measurement cables and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 5 Related Parameters Related IO Panel Text INT1 1STFL:OVERCURR Description First fault of PhaseINT Inverter 1 Phase A: Overcurrent Causes - Overcurrent in a phase

- Protection Firing (The fault can appear in the fault logger after a Firing Through) - Measurement device defective (Current Transducer, PhaseINT)

Rectification 1 Use datalogger to check if there was too high current 2 Check for other related faults (3 Check the current transducer and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.38: INT1 First Fault Bit 6 Related Parameters Related IO Panel Text INT1 1STFL:PF INT Description First fault of PhaseINT Inverter 1 Phase A: Auxiliary power failure on INT Causes - Damaged PhaseINT

- Damaged IPS - Loss of auxiliary power

Rectification 1 Check auxiliary power supply voltage and connections, if there is a IPS fault in INU fault logger 2 Check PhaseINT board




Panel Text INT1 AuxiliaryPower Description Auxiliary power failure on PhaseINT Inverter 1 Phase A Causes - Damaged PhaseINT



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.07: FW CntrlHardware Bit B6 Related Parameters Related IO Panel Text INT1 Desaturation Description At least one out of 12 IGBT of Inverter 1 Phase A desaturated. Causes - Short circuit (within phase module)



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.21: FW1 Short Circuit Bit B4 Related Parameters Related IO Panel Text INT1 HW GD Failed Description At least one out of 6 Gate Drive link driver on the PhaseINT board of Inverter 1 Phase A is

defective. Causes Gate Driver output on PhaseINT board is broken. Rectification Check PhaseINT Fault Register 7 (171.37 (ARU) or 172.37 (INU)) to see which Gate Drive link


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.09: FW2 CntrlHardware Bit B2 Related Parameters Related IO Panel Text INT1 HW GD Short Description At least one out of 6 Gate Driver channels of Inverter 1 Phase A detected an overcurrent and

was disabled. Causes Gate Driver output on PhaseINT shorted (by IGBT Gate Drive or faulty PhaseINT) Rectification Check PhaseINT fault register 9 (171.38 (ARU) or 172.38 (INU)) to see which Gate Driver


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.09: FW2 CntrlHardware Bit B8 Related Parameters Related IO

LDCI5420 ACS 2000 AD 33/72

Panel Text INT1 Overcurrent Description Overcurrent detected by PhaseINT of Inverter 1 Phase A Causes - Overcurrent in a phase

- Protection Firing (The fault always appears in the fault logger after a Firing Through) - Measurement device defective (Current Transducer, PhaseINT)


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.16: FW Current Bit B11 Related Parameters Related IO Panel Text INT1 Overvoltage Description Overvoltage in upper half of DC link detected by PhaseINT of Inverter 1 Phase A. Causes - ARU lost control over DC link voltage, due to fast load change of INU or network condition



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.12: FW DC LinkVolt Bit B9 Related Parameters Related IO Panel Text INT1 PhasCapVoltage Description Phase capacitor overvoltage detected by PhaseINT of Inverter 1 Phase A. Causes - Short between DC link and phase capacitor



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B2 Related Parameters Related IO Panel Text INT1 PPCS Link Description PhaseINT of Inverter 1 Phase A has detected a problem in at least one of the PPCS

communication links to MainINT Causes PPCC link between MainINT and PhaseINT is faulty Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check if MainINT or PhaseINT are broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.02: FW Communication Bit B4 Related Parameters Related IO



Panel Text INT2 1STFL:COMER A Description First fault of PhaseINT Inverter 1 Phase B: Communication error in PPCC link A Causes PPCC link A between MainINT and PhaseINT is faulty Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check if MainINT or PhaseINT are broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 1 Related Parameters Related IO Panel Text INT2 1STFL:DESAT Description First fault of PhaseINT Inverter 1 Phase B: At least one out of 12 IGBTs desaturated. Causes - Short circuit (within phase module)



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 7 Related Parameters Related IO Panel Text INT2 1STFL:GADRI SC Description First fault of PhaseINT Inverter 1 Phase B: At least one out of 6 Gate Driver channels detected

an overcurrent and was disabled. Causes Gate Driver output on PhaseINT shorted (by IGBT Gate Drive or faulty PhaseINT) Rectification Check PhaseINT fault register 9 (171.48 (ARU) or 172.48 (INU)) to see which Gate Driver


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 9 Related Parameters Related IO Panel Text INT2 1STFL:GATEDRIV Description First fault of PhaseINT Inverter 1 Phase B: At least one out of 6 Gate Drive link driver on the




LDCI5420 ACS 2000 AD 35/72

Panel Text INT2 1STFL:OV DC L Description First fault of PhaseINT Inverter 1 Phase B: Overvoltage in lower DC link half Causes - ARU lost control over DC link voltage, due to fast load change of INU or network condition



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 4 Related Parameters Related IO Panel Text INT2 1STFL:OV PHCAP Description First fault of PhaseINT Inverter 1 Phase B: Phase capacitor overvoltage Causes - Short between DC link and phase capacitor



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 5 Related Parameters Related IO Panel Text INT2 1STFL:OVERCURR Description First fault of PhaseINT Inverter 1 Phase B: Overcurrent Causes - Overcurrent in a phase


Rectification 1 Use datalogger to check if there was too high current 2 Check for other related fault (3 Check the current transducer and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.39: INT2 First Fault Bit 6 Related Parameters Related IO Panel Text INT2 1STFL:PF INT Description First fault of PhaseINT Inverter 1 Phase B: Auxiliary power failure on INT Causes - Damaged PhaseINT






Panel Text INT2 AuxiliaryPower Description Auxiliary power failure on PhaseINT Inverter 1 Phase B Causes - Damaged PhaseINT



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.08: FW1 CntrlHardware Bit B0 Related Parameters Related IO Panel Text INT2 Desaturation Description At least one out of 12 IGBT's of Inverter 1 Phase B desaturated. Causes - Short circuit (within phase module)



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.21: FW1 Short Circuit Bit B5 Related Parameters Related IO Panel Text INT2 HW GD Failed Description At least one out of 6 Gate Drive link driver on the PhaseINT board of Inverter 1 Phase B is



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.09: FW2 CntrlHardware Bit B3 Related Parameters Related IO Panel Text INT2 HW GD Short Description At least one out of 6 Gate Driver channels of Inverter 1 Phase B detected an overcurrent and




LDCI5420 ACS 2000 AD 37/72

Panel Text INT2 Overcurrent Description Overcurrent detected by PhaseINT of Inverter 1 Phase B Causes - Overcurrent in a phase



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.17: FW1 Current Bit B2 Related Parameters Related IO Panel Text INT2 Overvoltage Description Overvoltage in upper half of DC link detected by PhaseINT of Inverter 1 Phase B. Causes - ARU lost control over DC link voltage, due to fast load change of INU or network condition



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.13: FW1 DC LinkVolt Bit B0 Related Parameters Related IO Panel Text INT2 PhasCapVoltage Description Phase capacitor overvoltage detected by PhaseINT of Inverter 1 Phase B. Causes - Short between DC link and phase capacitor



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.14: FW2 DC LinkVolt Bit B3 Related Parameters Related IO Panel Text INT2 PPCS Link Description PhaseINT of Inverter 1 Phase B has detected a problem in at least one of the PPCS

communication links to MainINT Causes PPCC link between MainINT and PhaseINT is faulty Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check if MainINT or PhaseINT are broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.02: FW Communication Bit B6 Related Parameters Related IO



Panel Text INT3 1STFL:COMER A Description First fault of PhaseINT Inverter 1 Phase C: Communication error in PPCC link A Causes PPCC link A between MainINT and PhaseINT is faulty Rectification 1 Check the optical fiber connection between MainINT and PhaseINT

2 Check if MainINT or PhaseINT are broken FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit B1 Related Parameters Related IO Panel Text INT3 1STFL:DESAT Description First fault of PhaseINT Inverter 1 Phase C: At least one out of 12 IGBTs desaturated. Causes - Short circuit (within phase module)


172.54 (INU)) to see which Gate Drive detected a desaturation (parameter window needs to be uploaded first): Fault Register 3: B0 -> S22, B1-> S21, B2 -> S32, B3 -> S31, B4 -> S12, B5 -> S11, B6 -> SNP12, B7 -> SNP11 Fault Register 4: B0 -> SNP22, B1 -> SNP21, B2 -> S42, B3 -> S41 1 Check if the phase also has a Gate Driver short fault ("INT3 HW GD Short"). Yes -> Check corresponding fault description. 2 Check if a short within phase module exists. Yes -> Exchange the Semiconductor Modules (whole Heat sink). 3 Contact ABB support line 2 Check if a short within phase module exists. Yes -> Exchange phase module. 3 Contact ABB support line

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit 7 Related Parameters Related IO Panel Text INT3 1STFL:GADRI SC Description First fault of PhaseINT Inverter 1 Phase C: At least one out of 6 Gate Driver channels detected

an overcurrent and was disabled. Causes Gate Driver output on PhaseINT shorted (by IGBT Gate Drive or faulty PhaseINT) Rectification Check PhaseINT fault register 9 (171.58 (ARU) or 172.58 (INU)) to see which Gate Driver


FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit 9 Related Parameters Related IO Panel Text INT3 1STFL:GATEDRIV Description First fault of PhaseINT Inverter 1 Phase C: At least one out of 6 Gate Drive link driver on the




LDCI5420 ACS 2000 AD 39/72

Panel Text INT3 1STFL:GND OV Description First fault of PhaseINT Inverter 1 Phase C: NP to GND overvoltage Causes - Earth fault in the galvanically connected system

- Measurement device defective (HVD, PhaseINT) Rectification 1 Shut down converter and check insulation level of the galvanic system (transformer, cables,

ACS, motor). 2 Check for other related faults (3 Check HVD board, measurement cables and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit 4 Related Parameters Related IO Panel Text INT3 1STFL:OV PHCAP Description First fault of PhaseINT Inverter 1 Phase C: Phase capacitor overvoltage Causes - Short between DC link and phase capacitor



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit 5 Related Parameters Related IO Panel Text INT3 1STFL:OVERCURR Description First fault of PhaseINT Inverter 1 Phase C: Overcurrent Causes - Overcurrent in a phase


Rectification 1 Use datalogger to check if there was too high current 2 Check for other related fault (3 Check the current transducer and PhaseINT board)

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.40: INT3 First Fault Bit 6 Related Parameters Related IO Panel Text INT3 1STFL:PF INT Description First fault of PhaseINT Inverter 1 Phase C: Auxiliary power failure on INT Causes - Damaged PhaseINT






Panel Text INT3 AuxiliaryPower Description Auxiliary power failure on PhaseINT Inverter 1 Phase C Causes - Damaged PhaseINT



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.08: FW1 CntrlHardware Bit B6 Related Parameters Related IO Panel Text INT3 Desaturation Description At least one out of 12 IGBTs of Inverter 1 Phase C desaturated. Causes - Short circuit (within phase module)



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.21: FW1 Short Circuit Bit B6 Related Parameters Related IO Panel Text INT3 GroundFault OV Description NP to GND overvoltage detected by PhaseINT of Inverter 1 Phase C. Causes - Earth fault in the galvanically connected system

- Measurement device defective (HVD, PhaseINT) - wrong parameter setting

Rectification Shut down converter and check insulation level of the galvanic system (transformer, cables, ACS, motor). 2 Check for other related faults (3 Check HVD board, measurement cables and PhaseINT board) 4 For drives with grounded output filter, check parameter 112.22 HIGH UNPPE LV PLD. It should be set to TRUE.

FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.13: FW1 DC LinkVolt Bit B1 Related Parameters Related IO Panel Text INT3 HW GD Failed Description At least one out of 6 Gate Drive link driver on the PhaseINT board of Inverter 1 Phase C is




LDCI5420 ACS 2000 AD 41/72

Panel Text INT3 HW GD Short Description At least one out of 6 Gate Driver channels of Inverter 1 Phase C detected an overcurrent and



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.09: FW2 CntrlHardware Bit B10 Related Parameters Related IO Panel Text INT3 Overcurrent Description Overcurrent detected by PhaseINT of Inverter 1 Phase C Causes - Overcurrent in a phase



FaultClass INU FC1 FaultClass ARU FC1 Fault Word 183.17: FW1 Current Bit B11 Related Parameters Related

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TroubleshootingGuide ACS 2k Ctrl