Drum Motor Keb - Electrolux T5190LE Service Manual

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Service Manual
92

DRUM MOTOR KEB

22:0 SECURITY INPUT
Machine indicates that Interlock signal is missing to MCU.
Internal MCU error code STO.
The interlock signal is missing to MCU STO1+ or STO2+ inputs when expected to be active.
Recommended actions:
1. Verify STO 1+ signal from Loading Door or Unloading door locked sensors.
2. Verify STO 2+ signal from Emergency switch on loading or unloading side.
22:1 OVERVOLTAGE
The Motor Control Unit indicates error E.OP.
Voltage in DC-link too high.
Internal message 1.
Recommended actions:
1. Verify input voltage supply to machine (all phases).
2. Check that input choke is connected.
3. Check if braking resistor is defective.
4. Switch off the mainpower for 2 minutes.
5. Restart the machine.
22:2 UNDERVOLTAGE
The Motor Control Unit indicates error E.UP.
Voltage in DC-link too low.
Internal message 2.
Recommended actions:
1. Verify input voltage supply to machine (all phases).
2. Switch off the mainpower for 2 minutes.
3. Restart the machine.
22:3 PHASE FAILURE
The Motor Control Unit indicates error E.UPh.
One phase of input voltage missing. (Ripple detected).
Internal message 3.
Recommended actions:
1. Check power supply.
2. Check for blown fuses.
22:4 OVERCURRENT
The Motor Control Unit indicates error E.OC.
Peak current too high.
Internal message 4.
Recommended actions:
1. Verify that the load in the machine does not exceed maximum load.
2. Verify that the load in the machine have distributed correctly before spin.
3. Check FC for short-circuit at output transistors.
4. Check motor including cable for short-circuit.
5. Switch off the main power to machine for 5 minutes.
6. Restart the machine.

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