Engineer Training Electrical System Overview and Requirements

Engineer Training

Electrical System Overview and Requirements

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XL1500 Electric + PDU’s

Monitor

Co

mp

ute

r

40 VPowerSupply

24 VPowerSupply

220 V

220V

220 V

220 V

220 V

220 V

220 V

220 V

220VPo

we

r S

plit

er

MotorCollector

Infra Red Heating System

Dri

ver

Dri

ver

Dri

ver

Dri

ver

Motor Motor

MotorMotorMotionController

EmergencyContactor

24 V in

24 V out

Ma

in E

lect

ric

Ca

bin

et

Block Diagram

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PDU Latest Revision – Inside Look

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Upper PDU Components

1 2

3

4

Temp. controllers 1. IR Temp. controller 2. Heating table Temp. controller

3. Phase Contactors 55A

4. For the driversFor the IR

Temp controllers adjustment procedure

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Mid Level – Inside Look

Circuit breaker 3 phase, 63A

Main Switch S1

Lamps 220v

Fuse holder

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Lower Level-PDU

UPS rotary switch

Circuit breakers2*6A7*10A2*16A Main filter

3 Phases

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PDU – Main Safety

Safety relay

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PDU – Main Safety

Phase R starts the following loops:

Phase R UPS K1

K1 is the Safety relay – Responsible for shutting down the motion system in case of emergency.

When the 24v loop is cut, emergency is active.

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Open Cabinet – Old Revision

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Upper PDU

We have the following parts:

1. Temperature Display / Control for the Heating Table.

2. Heating Hood Row Selection / OFF Switch

3. Heating Hood Zone Selection Switch

1

2 3

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Mid Level PDU

Heating Hood 3 Phase Magnetic Relay

Here is where the computerturns on the heating.

Power Pilot Lamps. (Right)

Fuses for the Pilot Lamps(Left)

Main PowerBreaker

Main PowerSwitch

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Lower Level PDU

Main PowerFilter

Surge / SpikeSuppressor

CircuitSafety SystemRelay

Heating TableRelay

UPS / MainSelector Switch

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New PDU (UL Certified) – Last Revision

New Safety Relay

New Safety relay K3 (the same relay type as used for activating the Drying System) for the drivers replaces the old problematic one.

The K3 relay has been moved to a new position, and the RL3 relay is installed into its place (see Figure 4).

K3

RL3

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Last PDU Revision (UL Certified)

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Last PDU Revision (UL Certified) (Cont.)

New Main 3-phase Circuit Breaker

The main Circuit Breaker F1 (see green line) includes the Switch Tripped mechanism (terminals 9,10). The two phases are connected (see dashed green line) via the Emergency Switch.

When the Switch Tripped is powered, the F1 contacts are closed and the machine is connected to the power line.

When the Emergency Switch is pressed, the Switch Tripped will be powered off and the F1 contacts will be opened,(i.e. the machine will be disconnected from the power line).

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Last PDU Revision (UL Certified) (Cont.)

New Emergency Stop Button

The new PDU is equipped with its own Emergency Stop button

When pressed, the RL3 relay will be activated and the electrical power will be disconnected before the Main 3-phase Circuit Breaker and from the UPS to the machine – see Figure (next slide).

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Main Safety – PDU

To UPS

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Main Safety – PDU

The green dash line marks the circuit UPS Emergency Switch RL3 coil UPS. When the Emergency Switch is pressed, this circuit is open.

The cyan dot line specifies the circuitUPS RL3 contacts Drivers Left Cabinet(PC, Power Supplies) UPS. When the Emergency Switch is pressed, this circuit is open.

The magenta dot line specifies the self-sustain loop for holding the RL3 powered in case of general electric failure(i.e. Switch Tripped is not powered and the green circuit is open).

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PDU with Heating Control Unit (External or Built-in)

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XL Premium – PDU

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XL Premium – PDU

1. XL Premium printing table has an Extra 5 heating table elements (Total of 10 heating elements).

2. Circuit breaker on the PDU is changed from 16A to 20A in order to support it.

3. Controlling the heating tables is from the Printing table heating controller (F5 circuit breaker on the PDU)

4. Once the heating table gives signals that the current temperature is lowered then the desired temperature, a 24v input signal will operate the SSR and the heating table will work.

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XL Premium – PDU

20A Circuit breaker

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Engineer Training Electrical System Overview and Requirements