Siemens Sinumerik 840D sl Diagnostic Manual page 839

03/2009
Cause: The bypass contactor of the infeed unit was damaged by being opened (multiple number of times)
while it was conducting current.
Possible causes:
- scheduled opening under load can be necessary, for example, to protect the drive converter group
in the event of a ground fault in high frequency spindles.
- incorrect operator control of the infeed can cause the contactor to switch under load. If, in spite of a
missing operating enable, the infeed unit draws active motoring power from the DC link.
Remedy: In order to avoid critically damaging the complete drive converter group, it is urgently recommended
to replace the damaged infeed unit.
230070 <location>Cycle requested by the power unit module not supported
Message %1
value:
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The following applies for CU31x and CUA31:
A cycle is requested that is not supported by the power unit.
Fault value (r0949, interpret hexadecimal):
The following applies for CU31x and CUA31:
0: The current control cycle is not supported.
1: The DRIVE-CLiQ cycle is not supported.
2: Internal timing problem (distance between RX and TX instants too low).
3: Internal timing problem (TX instant too early).
Remedy: The following applies for CU31x and CUA31:
The power unit only supports the following cycles:
62.5 µs, 125 µs, 250 µs and 500 µs
Fault value (r0949, interpret hexadecimal):
The following applies for CU31x and CUA31:
0: Set a permitted current control cycle.
1: Set a permitted DRIVE-CLiQ cycle.
2/3: Contact the manufacturer (there is possibly an incompatible firmware version).
230071 <location>No new actual values received from the power unit module
Message -
value:
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The following applies for CU31x and CUA31:
More than one actual value telegram from the power unit has failed.
Remedy: The following applies for CU31x and CUA31:
Check the interface (adjustment and locking) to the power unit.
230072 <location>Setpoints are no longer being transferred to the power unit
Message -
value:
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The following applies for CU31x and CUA31:
More than one setpoint telegram was not able to be transferred to the power unit.
Remedy: The following applies for CU31x and CUA31:
Check the interface (adjustment and locking) to the power unit.
© Siemens AG 2009 All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
SINAMICS-Alarms
2-839