Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 172)

Troubleshooting and fault elimination
Error messages
8−5
L
EDB82MV752 EN 5.2
Remedy Cause Fault PC 1) Keypad
LP1
a
32 Error in motor phase
(Display when C0597 = 1)
·
Failure of one/several motor phases
·
Motor current too low
·
Check motor supply cables
·
Check U
min
boost,
·
Connect motor with a corresponding power or adapt
motor with C0599
LP1 182 Error in motor phase
(Display when C0597 = 2)
LU
c
− DC bus undervoltage Mains voltage too low Check mains voltage
Voltage in DC−bus connection too low Check power supply module
400 V controller is connected to 240 V mains Connect controller to correct mains voltage
OC1
a
11 Short circuit Short circuit
·
Search for cause of short circuit; check motor cable
·
Check brake resistor and cable to brake resistor
Capacitive charging current of the motor cable too
high Use shorter/low−capacitance motor cable
OC2
a
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
a
13 Controller overload during
acceleration or short circuit Acceleration time set is too short (C0012)
·
Increase acceleration time
·
Check drive dimensioning
Defective motor cable Check wiring
Interturn fault in the motor Check motor
OC4
a
14 Controller overload during
deceleration Deceleration time set is too short (C0013)
·
Increase deceleration time
·
Check dimensioning of the external brake resistor
OC5
a
15 Controller overload during
steady−state operation Frequent and too long overload Check drive dimensioning
OC6
a
16 Motor overload (I 2 x t overload) Motor is thermally overload by e.g.
·
impermissible continuous current
·
Check drive dimensioning
·
frequent or too long acceleration processes
·
Check setting of C0120
OH
a
50 Heatsink temperature
> +85 °C Ambient temperature is too high Allow controller to cool and provide better ventilation
OH
e
− Heatsink temperature
> +80 °C Heatsink is very dirty Clean heatsink
Impermissibly high currents or frequent and too
long acceleration processes
·
Check drive dimensioning
·
Check load, exchange rough−running, defective
bearings if necessary
OH3
a
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
No PTC connected Connect PTC or switch off monitoring
OH4
a
54 Controller overtemperature Controller too hot inside
·
Reduce controller load
·
Improve cooling
·
Check fan in the controller
OH51 203 PTC monitoring
(Display when C0119 = 2 or 5) Motor too hot due to impermissibly 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 too high Check supply voltage
OUE
a
22 Braking operation
·
Increase deceleration times
·
When operating with an external brake resistor:
– Check dimensioning, connection and supply cable
of the brake resistor
– Increase deceleration times
Earth leakage on the motor side Check motor supply cable and motor for earth fault
(disconnect motor from the inverter)
Pr
a
75 Faulty parameter transmission
when using the 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 with
keypad Parameter set 1 is defective