Lenze Global Drive 8200 vector Instructions De Montage page 160

8 Troubleshooting and fault elimination
Fault elimination
Fault messages
1)
Keypad PC Fault
− DC−bus
LU
undervoltage
c
11 Short circuit
OC1
a
12 Earth fault
OC2
a
13 Controller overload
OC3
during acceleration
a
or short circuit
14 Controller overload
OC4
during deceleration
a
15 Controller overload
OC5
during steady−state
a
operation
16 Motor overload
OC6
2
(I
a
160
Cause
Mains voltage is too low
Voltage in DC−bus connection is
too low
400 V controller is connected to
240 V mains
Short circuit
Capacitive charging current of
the motor cable is too high
A motor phase has earth contact
Capacitive charging current of
the motor cable is too high
Set acceleration time is too short
(C0012)
Defective motor cable
Interturn fault in the motor
Set deceleration time is too short
(C0013)
Frequent and too long overload
periods
Motor is thermally overloaded by
x t overload) e.g.
l impermissible continuous
current
l frequent or too long
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
EDK82EV222 DE/EN/FR 13.0