U
Fault detection and elimination
Fault messages
EDK82MV222 DE/EN/FR 9.0
L
NPS
Remedy
Cause
Fault
PC
1)
Keypad
400 V controller is connected
to 240 V mains
Connect controller to correct
mains voltage
OC1
11
Short circuit
Short circuit
z
Search for cause of short
circuit; check motor cable
z
Check brake resistor and cable
to brake resistor
Capacitive charging current of
the motor cable too high
Use shorter/low-capacitance
motor cable
OC2
12
Earth fault
A motor phase has earth
contact
Check motor; check motor cable
Capacitive charging current of
the motor cable too high
Use shorter/low-capacitance
motor cable
Deactivate earth-fault detection
for inspection purposes
OC3
13
Controller
overload during
acceleration or
short circuit
Acceleration time set is too
short (C0012)
z
Increase acceleration time
z
Check drive dimensioning
Defective motor cable
Check wiring
Interturn fault in the motor
Check motor
OC4
14
Controller
overload during
deceleration
Deceleration time set is too
short (C0013)
z
Increase deceleration time
z
Check dimensioning of the
external brake resistor
OC5
15
Controller
overload during
steady-state
operation
Frequent and too long
overload
Check drive dimensioning
OC6
16
Motor overload
(I
2
x t overload)
Motor is thermally overload by
e.g.
z
impermissible continuous
current
z
Check drive dimensioning
z
frequent or too long
acceleration processes
z
Check setting of C0120
OH
50
Heatsink
temperature
> +85 °C
Ambient temperature is too
high
Allow controller to cool and
provide better ventilation
OH
-
Heatsink
temperature
> +80 °C
Heatsink is very dirty
Clean heatsink
Impermissibly high currents or
frequent and too long
acceleration processes
z
Check drive dimensioning
z
Check load, exchange
rough-running, defective
bearings if necessary
OH3
53
PTC monitoring
(TRIP)
(Display when
C0119 = 1 or 4)
Motor too hot due to
impermissibly high currents or
frequent and too long
acceleration processes
Check drive dimensioning
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