7 Troubleshooting
MAGNETEK HPV1000 AC Elevator Drive Technical Manual 61
PF5
Resc Power Flt
Rescue Operation Power Supply
Deterioration Error
During Rescue Operation, either the DC bus voltage dropped below
DCVoltLvl@Rescue (A1) x (PS ReductnDetLvl (A1) - 10%), or 100 ms after
triggering Rescue Operation, the DC bus voltage did not reach
DCVoltLvl@Rescue (A1) x PS ReductnDetLvl (A1) before the motor started.
• Check the DC bus voltage setting for Rescue Operation.
• Lower the speed reference set for Rescue Operation.
• Check the backup power supply. It may need to be replaced with another
UPS if it has become worn and can no longer provide enough power.
PGo
Encoder Fault
Encoder Open Alm
No encoder pulses are received for longer
than the time set to F1-14.
Encoder cable is disconnected.
• Reconnect the cable.
Encoder cable wiring is wrong.
• Correct the wiring.
Encoder has no power.
• Check the power line to the encoder.
• Replace the encoder cable.
Motor brake is not released.
• Ensure the motor brake released properly.
Encoder hardware issue
• Verify encoder is operating, or replace the encoder.
During Rescue Operation, either the DC bus voltage dropped below
DCVoltLvl@Rescue (A1) x (PS ReuctnDetLvl (A1) - 10%), or 100 ms after
triggering Rescue Operation, the DC bus voltage did not reach
DCVoltLvl@Rescue (A1) x PS ReuctnDetLvl (A1) before the motor started.
• Check the DC bus voltage setting for DCVoltLvl@Rescue (A1).
• Lower the speed reference set for Rescue Operation.
• Check the backup power supply. It may need to be replaced with another
UPS if it has become worn and can no longer provide enough power.
PGoH
Enc Disconnected
Encoder cable is not connected properly.
Encoder cable is disconnected.
• Reconnect the cable.
Encoder hardware issues.
• Verify the encoder is operating, or replace the encoder.
PG option card is having issues.
• Verify that the correct PG encoder card is connected, and it is in the CN5-C
slot.
rF
DBR Short Flt
The resistance of the braking resistor
being used is too low.
The proper braking resistor option has not been installed.
• Select the braking resistor option so that fits to the drives braking transistor
specification.
A regenerative converter, regenerative unit or braking unit is being used and
the +1 or +3 terminal is connected to - terminal.
• Disable the DB Tr Protection (C1).
rr
DBTransistor Flt
The built-in dynamic braking transistor
failed.
The braking transistor is damaged, or the control circuit is damaged.
• Cycle power to the drive and check if the fault reoccurs.
• Replace either the control board or the entire drive. For instructions on
replacing the control board, contact Magnetek.
SC
Short Circuit
Short Circuit or Ground Fault is detected.
IGBT Fault, or IGBT short circuit detection circuit fault.
• Check the wiring to the motor.
• Turn the power supply off and then on again to check operation.
• If the problem continues, contact Magnetek.
The drive is damaged.
• Check the drive output side short circuit for broken output transistor from:
B1 and U/V/W and - (negative) and U/V/W.
SE
Memobus Seq Alm
MEMOBUS/Modbus Self Test Failed
A digital input set to (MEMOBUS/Modbus test) was closed while the drive
was running.
• Stop the drive and run the test again.
SE1
Contactor Fault
Motor contactor does not respond within
the time set in Contact Flt Time (A1).
There is a problem with the motor contactor or auxiliary switch.
• Check the motor contactor, auxiliary switches and the wiring of the
contactor feedback signal.
SE2
Start Curr Fault
The output current was lower than 25% of
the motor no-load current at start.
The motor contactor is open.
• Check the contactor for any problems.
• Check for any sequencing problems between contact picking and the drive
being told to run.
Fault Code/Name Description Causes and Solutions
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