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Correctif à la

notice d’exploitation

MOVITRAC® LTP B / LTX, LTP A, LTE B

Version 03/2013 20133359 / FR

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Sommaire

Sommaire1 Remarques .......................................................................................................... 4

2 MOVITRAC® LTP B / LTX ................................................................................... 5

2.1 Thermal motor protection ........................................................................... 5

3 MOVITRAC® LTP A ............................................................................................. 6

3.1 Thermal motor protection ........................................................................... 6

4 MOVITRAC® LTE B ............................................................................................. 7

4.1 Thermal motor protection ........................................................................... 7

Revision Information regerading UL 3

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1 emarques

1 Remarques

REMARQUELes informations mentionnées dans la présente documentation viennent compléter lechapitre "Installation conforme à UL" des notices d'exploitation des convertisseurssuivants :

• MOVITRAC® LTP B / LTX, version 20091753 / FR• MOVITRAC® LTP A, version 16884825 / FR• MOVITRAC® LTE B, version 20045352 / FR

REMARQUELes chapitres suivants sont toujours en anglais indépendamment de la langue de laprésente documentation et ce, en raison des prescriptions UL.

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Revision Information regarding UL

2Thermal motor protection

MOVITRAC® LTP B / LTX

2 MOVITRAC® LTP B / LTX

2.1 Thermal motor protection

Thermal motor overload protection shall be provided by one of the following means:

• NEC compliant installation of a motor temperature sensor, see also section "Motortemperature protection (TF/TH)" in the chapter "Electrical Installation" of the opera-ting instructions.

• Using internal thermal motor overload protection according to NEC (National Electri-cal Code, US). Thermal motor overload protection can be activated via parameterP4-17.

• Implementing external measures to ensure thermal motor overload protectionaccording to NEC (National Electrical Code).

2.1.1 Parameter

The following additional parameter was added to MOVITRAC® LTP-B/LTX inverters toimplement internal thermal motor protection according to NEC:

• P4-17 Thermal motor protection according to NEC

• 0 / disabled

• 1 / enabled

2.1.2 Functional principle

The motor current is accumulated in an internal memory over the course of time. Theinverter goes to fault state as soon as the thermal limit is exceeded (I.t-trP).

Once the output current of the inverter is less than the set rated motor current, the inter-nal memory is decremented depending on the output current.

• When P4-17 is disabled, thermal memory retention is reset upon shutdown or powerloss.

• When P4-17 is enabled, thermal memory retention is maintained upon shutdown orpower loss.

INFORMATIONOnly the fuses mentioned in chapter "UL compliant installation" of the operating ins-tructions shall be used for UL compliant installation.

Revision Information regarding UL

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3hermal motor protectionOVITRAC® LTP A

3 MOVITRAC® LTP A

3.1 Thermal motor protection

MOVITRAC® LTP-A is not provided with internal thermal motor overload protectionaccording to NEC (National Electrical Code, US).

Thermal motor overload protection shall be provided by the following means:

• NEC compliant installation of a motor temperature sensor, see also chapter "Motortemperature protection (TF/TH)" in the operating instructions.

• Implementing external measures to ensure thermal motor overload protectionaccording to NEC (National Electrical Code).

INFORMATIONOnly the fuses mentioned in chapter "UL compliant installation" of the operatinginstructions shall be used for UL compliant installation.

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Revision Information regarding UL

4Thermal motor protection

MOVITRAC® LTE B

4 MOVITRAC® LTE B

4.1 Thermal motor protection

Thermal motor overload protection shall be provided by one of the following means:

• NEC compliant installation of a motor temperature sensor, see also section "Motortemperature protection (TF/TH)" in the chapter "Electrical Installation" of the opera-ting instructions.

• Using internal thermal motor overload protection according to NEC (National Electri-cal Code, US). Thermal motor overload protection can be activated via parameterP41.

Note: This function is available with firmware 1.1 and later.

• Implementing external measures to ensure thermal motor overload protectionaccording to NEC (National Electrical Code).

4.1.1 Parameter

The following additional parameter was added to MOVITRAC® LTE-B inverters toimplement internal thermal motor protection according to NEC:

• P41 Thermal motor protection according to NEC

• 0 / disabled

• 1 / enabled

4.1.2 Functional principle

The motor current is accumulated in an internal memory over the course of time. Theinverter goes to fault state as soon as the thermal limit is exceeded (I.t-trP).

Once the output current of the inverter is less than the set rated motor current, the inter-nal memory is decremented depending on the output current.

• When P41 is disabled, thermal memory retention is reset upon shutdown or powerloss.

• When P41 is enabled, thermal memory retention is maintained upon shutdown orpower loss.

INFORMATIONOnly the fuses mentioned in chapter "UL compliant installation" of the operating ins-tructions shall be used for UL compliant installation.

Revision Information regarding UL

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