Lenze 8200 motec Instructions De Montage page 134

8 Troubleshooting and fault elimination
Fault messages
1)
Keypad PC
−
LU
c
11
OC1
a
12
OC2
a
13
OC3
a
14
OC4
a
15
OC5
a
16
OC6
a
50
OH
a
−
OH
e
−
OH
e
134
Fault Cause
DC−bus
Mains voltage is too low
undervoltage
Voltage in DC−bus
connection is too low
400 V controller is
connected to 240 V mains
Short circuit
Short circuit
Capacitive charging current
of the motor cable is too
high
Earth fault
A motor phase has earth
contact
Capacitive charging current
of the motor cable is too
high
Controller Set acceleration time is too
overload during short (C0012)
acceleration or
Defective motor cable
short circuit
Interturn fault in the motor
Controller Set deceleration time is too
overload during short (C0013)
deceleration
Controller Frequent and too long
overload during overload periods
steady−state
operation
Motor overload
Motor is thermally
2
(I x t overload)
overloaded by e.g.
l impermissible
continuous current
l frequent or too long
acceleration processes
Heatsink Ambient temperature is too
temperature > high
+85 °C
Heatsink Heatsink is very dirty
temperature >
+80 °C
Heatsink Impermissible high currents
temperature > or frequent and too long
+80 °C acceleration processes
l
Remedy
Check mains voltage
Check power supply module
Connect controller to correct
mains voltage
l Search for cause of short
circuit; check motor cable
l Check brake resistor and
cable to brake resistor
Use shorter/low−capacitance
motor cable
Check motor; check motor cable
Use shorter/low−capacitance
motor cable
Deactivate earth−fault detection
for test purposes
l Increase acceleration time
l Check drive dimensioning
Check wiring
Check motor
l Increase deceleration time
l Check dimensioning of the
external brake resistor
Check drive dimensioning
l Check drive dimensioning
l Check setting of C0120
Allow controller to cool and
provide for better ventilation
Clean heatsink
l Check drive dimensioning
l Check load, replace
rough−running, defective
bearings, if necessary
EDK82MV371 DE/EN/FR 7.0