Lenze SMD Instructions D'installation Et De Mise En Service page 23

Trouble Shooting & Fault Elimination
Error
0C1 Short-circuit or overload
Earth fault
0C2
Motor overload (I
0C6
0H Controller overtemperature
Overvoltage on DC bus
OU
rSt Faulty auto-TRIP reset
Loss of 4-20 mA reference
Sd5
SF Single phase fault
(1) The drive can only be restarted if the error message has been reset; see c70
NOTE
In the event of an "OC6" (Motor Overload) failure there is a 3-minute delay before
resetting is possible. This is a requirement of UL508C. This delay is intended to
allow time for the motor to cool.
If power is removed when the drive is in an "OC6" fault state, when the power is
restored the "OC6" fault will still be present and the delay will still be active even if
power was removed for longer than 3 minutes.
Lenze 13466184 EDBSL03 v20 EN, DE, FR, IT, ES
Short-circuit
Excessive capacitive charging
current of the motor cable
Acceleration time (C12, c01) too
short
Defective motor cable
Internal fault in motor
Frequent and long overload
Grounded motor phase
Excessive capacitive charging
current of the motor cable
t overload) Motor is thermally overloaded,
2
due to:
• impermissable continuous current
• frequent or too long acceleration
processes
Controller too hot inside
Mains voltage too high
Excessively short deceleration time
or motor in generator mode
Earth leakage on the motor side
More than 8 errors in 10 minutes
4-20 mA signal is below 2 mA
(C34 = 4)
A mains phase has been lost
Cause
Find reason for short-circuit; check
motor cable
Use shorter motor cables with lower
charging current
• Increase acceleration time
• Check controller selection
Check wiring
Check motor
Check controller selection
Check motor/motor cable
Use shorter motor cables with lower
charging current
• Check controller selection
• Check setting of c20
• Reduce controller load
• Improve cooling
Check mains voltage
Increase deceleration time or use
dynamic braking option
Check motor/motor cable
(separate motor from controller)
Depends on the error
Check signal/signal wire
Check mains voltage
Remedy
(1)
21