EN
English – 9
OPERATION CURVES
(FU)
C
1
2
(FU)
C
1
2
(FU)
C
1
3
(FU)
C
1
3
(UST1FU)
Poti2
(UST1FU)
Poti3
(UST1FU)
Poti1
(UST1FU)
Poti1
(X5)
P8
(X5)
P9
Operation curves with parameter setting assigned
Error/
status
Description
Cause
Remedy
OC1
Short circuit or overload
Short circuit
Look for the cause of the short circuit,
check the line
Capacitive charging current of
the motor line too high
Use a shorter motor line with lower
charging current
Time for going into full speed (C12, c01) too
short
Increase the time for going into full
speed
Check the sizing of the regulator
Motor line damaged
Check the motor line
Fault inside the motor
Check the motor
Overload frequent and lengthy
Check the sizing of the regulator
OC2
Earth contact
Motor phase with earth contact
Check the motor/motor line
Capacitive charging current of
the motor line too high
Use a shorter motor line with lower
charging current
OC6
Motor overload
Thermal motor overload due to: unreliable
continuous current, frequent or too lengthy
acceleration processes
Check the size of the regulator
Check the setting of c20
OH
Regulator overtemperature
Space inside the regulator too hot
Reduce the load of the regulator
Improve cooling
OU
Overvoltage in the intermediate
circuit during the process
(warning)
Mains voltage too high
Check the mains voltage
Process time very short or motor in
generator mode
Increase the process time or use the
option for dynamic braking
Earth contact motor side
Check the motor/motor line (Separate
the motor from the regulator )
5F
Single-‐phase error
Loss of the mains phase
Check the mains voltage
