Lenze 8210 series - Manual (Page 62)

Troubleshooting and fault elimination
8-4 UONu_^MPMQ
L
Display Remedy Cause Fault
OH51 PTC monitoring (Warning) IMotor too hot because of
excessive current or frequent
and too long acceleration
Check drive selection
IPTC not connected Connect PTC or switch off monitoring
OV Overvoltage Mains voltage too high Check voltage supply OV Overvoltage
Feedback operation
Braking operation D Increase deceleration times.
D For operation with brake choppers:
- Check the selection and
connection of the brake resistor
- Increase the deceleration times
Earth leakage on the motor side Check motor cable and motor for earth
fault (disconnect motor from inverter)
rSt Faulty auto-TRIP reset More than 8 fault messages in
10 minutes
Depends on the fault message
Pr Faulty parameter transfer
via the operating module
PAR1 and PAR2 are defective. It is absolutely necessary to repeat the
data transfer or load the factory setting
b f bli h ll
Pr1 Faulty PAR1 transfer via
the operating module
PAR1 is defective.
data transfer or load the factory setting
before enabling the controller.
Pr2 Faulty PAR2 transfer via
the operating module
PAR2 is defective.
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