Lenze 8200 series User Manual

Troubleshooting and fault elimination
UOMu_^MVMO 8-3
8.3 Fault indications
Display Fault Cause Remedy
--- No fault - -
EEr External fault (TRIP-Set) A digital input assigned to the
TRIP-Set function has been
activated
Check external encoder
H05 Internal fault Contact Lenze
LU Undervoltage DC-bus voltage too low D Check mains voltage
D Check supply module
OC1 Short circuit
Short circuit Find out cause of short circuit; check
cable
Excessive capacitive charging
current of the motor cable
Use motor cable which is shorter or of
lower capacitance
OC2 Earth fault
Grounded motor phase Check motor; check cable
O
C
2
E
a
r
t
h
f
a
u
l
t
Excessive capacitive charging
current of the motor cable
Use motor cable which is shorter or of
lower capacitance
OC3 Overload inverter during
acceleration or short
c
i
r
c
u
i
t
Acceleration time too short
(C012)
D Increase acceleration time
D Check drive selection
circuit
Defective motor cable Check wiring
Interturn fault in the motor Check motor
OC4 Overload controller during
deceleration
Deceleration time too short
(C013)
D Increase deceleration time
D Check the selection of the brake
resistor or connect the brake
chopper
OC5 I x t overload
Frequent and too long
acceleration processes with
overcurrent
Check drive dimensioning
Permanent o verload with
I
motor
>1.05xI
Nx
OC6 Overload motor
Motor is thermally overloaded, for
instance, because of
D impermissible continuous
current
D Check drive selection
D frequent or too long
acceleration processes
D Check the setting under C120
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Lenze 8200 series Specifications

General

Brand	Lenze
Model	8200 series
Category	Inverter
Language	English