Operating Instructions

Siemens Industry, Inc. • 96 Siemens Application
24-hour support [phone] (Dial 2)
3.7.3 Fault codes
Table 57. Fault codes and descriptions.
Fault
code
Fault
ID
Fault name Possible cause Remedy
1
1
Over-current
(hardware fault)
The drive has detected too high a current
(>4*I
H
) in the motor cable:
• sudden heavy load increase
• short circuit in motor cables
• unsuitable motor
Check loading.
Check motor.
Check cables and connections.
Make identification run.
Check ramp times.
2
Over-current
(software fault)
2
10
Over-voltage
(hardware fault)
The DC-link voltage has exceeded the
limits defined.
• too short a deceleration time
• high over-voltage spikes in supply
• Start/Stop sequence too fast
Make deceleration time longer.
Activate overvoltage controller.
Check input voltage.
11
Over-voltage
(software fault)
3
20
Earth fault (hard-
ware fault)
Current measurement has detected that
the sum of motor phase current is not
zero.
• insulation failure in cables or motor
Check motor cables and motor.
21
Earth fault (soft-
ware fault)
540Charging switch
The charging switch is open, when the
START command has been given.
• faulty operation
• component failure
Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.
760Saturation
Various causes:
• defective component
• brake resistor short-circuit or over-
load
Cannot be reset from keypad.
Switch off power.
DO NOT RE-CONNECT POWER!
Contact factory.
If this fault appears simultaneously
with F1, check motor cables and
motor.