List of Faults and Alarms
Faults and Alarms
3-645
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
F30071
No new actual values received from the Power Module
Reaction:
OFF2
Acknowledge:
IMMEDIATELY
Cause:
More than one actual value telegram from the power unit module has failed.
Remedy:
Check the interface (adjustment and locking) to the power unit module.
F30072
Setpoints can no longer be transferred to the Power Module
Reaction:
OFF2
Acknowledge:
IMMEDIATELY
Cause:
More than one setpoint telegram was not able to be transferred to the power unit module.
Remedy:
Check the interface (adjustment and locking) to the power unit module.
F30074
Communication error to the Power Module
Reaction:
NONE
Acknowledge:
IMMEDIATELY
Cause:
Communication is not possible with the power unit module via the plug connection.
Remedy:
Either replace the Control Unit or the power unit.
You must check which of the two components needs to be replaced by replacing one component and then the other
(ensuring that the component which is not being tested in each case is fully functioning). If these are not available,
then both components must be returned.
F30080
Power unit: Current increasing too quickly
Reaction:
OFF2
Acknowledge:
IMMEDIATELY
Cause:
The power unit has detected an excessive rate of rise in the overvoltage range.
- closed-loop control is incorrectly parameterized.
- motor has a short-circuit or fault to ground (frame).
- V/f operation: Up ramp set too low.
- V/f operation: Rated motor current is significantly greater than that of the Motor Module.
- infeed: High discharge and post-charging current for voltage dip.
- infeed: High post-charging currents for overload when motoring and DC link voltage dip.
- infeed: Short-circuit currents at power-up due to the missing line reactor.
- power cables are not correctly connected.
- power cables exceed the maximum permissible length.
- power unit defective.
Additional causes for a parallel switching device (r0108.15 = 1):
- a power unit has tripped (powered down) due to a ground fault.
- the closed-loop circulating current control is either too slow or has been set too fast.
Fault value (r0949, interpret bitwise binary):
Bit 0: Phase U.
Bit 1: Phase V.
Bit 2: Phase W.
Remedy:
- check the motor data - if required, carry out commissioning.
- check the motor circuit configuration (star-delta)
- V/f operation: Increase up ramp.
- V/f operation: Check the assignment of the rated currents of the motor and Motor Module.
- infeed: Check the line supply quality.
- infeed: Reduce the motor load.
- infeed: Correct connection of the line reactor.
- check the power cable connections.
- check the power cables for short-circuit or ground fault.
- check the length of the power cables.
- replace power unit.
For a parallel switching device (r0108.15 = 1) the following additionally applies:
- check the ground fault monitoring thresholds (p0287).
- check the setting of the closed-loop circulating current control (p7036, p7037).
Summary of Contents for CU230P-2 CAN
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