Lenze E82MV551_4B - Page 136

U
Fault detection and elimination
Fault messages
EDK82MV222 DE/EN/FR 9.0
L
NPS
RemedyCauseFaultPC
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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