Lenze E82MVxxx 2Bxxx - Manual (Page 135)

Troubleshooting and fault elimination
Fault messages
8
l
135 EDK82MV371 DE/EN/FR 7.0
Remedy Cause Fault PC 1) Keypad
OH3
a
53 PTC monitoring
(TRIP)
(display when
C0119 = 1 or 4) Motor too hot due to
impermissible high currents
or frequent and too long
acceleration processes Check drive dimensioning
No PTC connected Connect PTC or switch off
monitoring
OH4
a
54 Controller
overtemperature Controller is too hot inside l Reduce controller load
l Improve cooling
l Check fan in the controller
OH51 203 PTC monitoring
(display when
C0119 = 2 or 5) Motor too hot due to
impermissible high currents
or frequent and too long
acceleration processes Check drive dimensioning
No PTC connected Connect PTC or switch off
monitoring
OU
c
− DC−bus
overvoltage
(message or TRIP
configurable in
C0310) Mains voltage is too high Check supply voltage
OUE
a
22 Braking operation l Increase deceleration times
l For operation with an
external brake resistor:
– Check dimensioning,
connection and supply
cable of the brake resistor
– Increase deceleration
times
Earth leakage at motor end Check motor supply cable and
motor for earth fault
(disconnect motor from the
inverter)
Pr
a
75 Faulty parameter
transfer via
keypad All parameter sets are
defective Before enabling the controller,
repeat the data transfer or load
the Lenze setting
Pr1
a
72 Faulty PAR1
transfer via
keypad Parameter set 1 is defective
Pr2
a
73 Faulty PAR2
transfer via
keypad Parameter set 2 is defective
Pr3
a
77 Faulty PAR3
transfer via
keypad Parameter set 3 is defective
Pr4
a
78 Faulty PAR4
transfer via
keypad Parameter set 4 is defective