Lenze 8200 vector series, Mounting Instructions

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Troubleshooting and fault elimination
Fault elimination
Fault messages
8
160
EDK82EV222 DE/EN/FR 13.0
Remedy Cause Fault PC
1)
Keypad
LU
− DC−bus
undervoltage
Mains voltage is too low Check mains voltage
Voltage in DC−bus connection is
too low Check power supply module
400 V controller is connected to
240 V mains Connect controller to correct mains
voltage
OC1
$
11 Short circuit
Short circuit l Search for cause of short circuit;
check motor cable
l Check brake resistor and cable to
brake resistor
Capacitive charging current of
the motor cable is 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 is too high Use shorter/low−capacitance motor
cable
Deactivate earth−fault detection for
test purposes
OC3
$
13 Controller overload
during acceleration
or short circuit Set acceleration time is too short
(C0012) l Increase acceleration time
l Check drive dimensioning
Defective motor cable Check wiring
Interturn fault in the motor Check motor
OC4
$
14 Controller overload
during deceleration Set deceleration time is too short
(C0013) l Increase deceleration time
l Check dimensioning of the
external brake resistor
OC5
$
15 Controller overload
during steady−state
operation Frequent and too long overload
periods Check drive dimensioning
OC6
$
16 Motor overload
(I
2
x t overload)
Motor is thermally overloaded by
e.g.
l impermissible continuous
current l Check drive dimensioning
l frequent or too long
acceleration processes l Check setting of C0120