Fault Indications - Lenze 8200 series Operating Instructions Manual

Troubleshooting and fault elimination

8.3 Fault indications

Display Fault
--- No fault
EEr External fault (TRIP-Set)
H05 Internal fault
LU Undervoltage
OC1 Short circuit
OC2 OC2 Earth fault Earth fault
OC3 Overload inverter during
acceleration or short
circuit circuit
OC4 Overload controller during
deceleration
OC5 I x t overload
OC6 Overload motor
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Cause Remedy
- -
A digital input assigned to the Check external encoder
TRIP-Set function has been
activated
Contact Lenze
DC-bus voltage too low D Check mains voltage
D Check supply module
Short circuit Find out cause of short circuit; check
cable
Excessive capacitive charging Use motor cable which is shorter or of
current of the motor cable lower capacitance
Grounded motor phase Check motor; check cable
Excessive capacitive charging Use motor cable which is shorter or of
current of the motor cable lower capacitance
Acceleration time too short D Increase acceleration time
(C012)
D Check drive selection
Defective motor cable Check wiring
Interturn fault in the motor Check motor
Deceleration time too short D Increase deceleration time
(C013)
D Check the selection of the brake
resistor or connect the brake
chopper
Check drive dimensioning
Frequent and too long
acceleration processes with
overcurrent
Permanent overload with
I > 1.05 x I
motor Nx
Motor is thermally overloaded, for
instance, because of
D impermissible continuous D Check drive selection
current
D frequent or too long D Check the setting under C120
acceleration processes
UOMu_^MVMO
8-3