Siemens SINUMERIK 840D sl Series Diagnostics Manual page 792

Overview of Alarms
235897 <location>DRIVE-CLiQ: No communications to the components
Reaction: A_INFEED: OFF2 (NONE, OFF1)
SERVO: OFF2 (DCBRAKE, ENCODER, NONE, OFF1, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: Communications with the DRIVE-CLiQ component specified by the fault value is not
possible.
One cause can be, e.g. that a DRIVE-CLiQ cable has been withdrawn.
Fault value (r0949, decimal):
Component ID.
Remedy: - check the DRIVE-CLiQ connections.
- carry-out a POWER ON.
235899 <location>TM: Unknown fault
Reaction: NONE (DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: A fault has occurred on the terminal module that cannot be interpreted by the control unit
firmware.
This can occur if the firmware on the terminal module is more recent than the firmware on
the control unit.
Fault value (r0949, decimal):
Fault number.
If required, the significance of this new fault can be read about in a more recent description
of the control unit.
Remedy: - replace the firmware on the terminal module by an older firmware version (r0158).
- upgrade the firmware on the control unit (r0018).
235903 <location>TM: Error I2C bus
Reaction: NONE
Acknowledge: NONE
Cause: An error has occurred while accessing the internal I2C bus of the terminal module.
Remedy: Replace the terminal module.
235904 <location>TM: EEPROM
Reaction: NONE
Acknowledge: NONE
Cause: An error has occurred accessing the non-volatile memory on the terminal module.
Remedy: Replace the terminal module.
235905 <location>TM: Parameter access
Reaction: NONE
Acknowledge: NONE
Cause: The control unit attempted to write an illegal parameter value into the terminal module.
Remedy: - check whether the firmware version of the TM (r0158) matches the firmware version of
control unit (r0018).
- if required, replace the terminal module.
Note:
The firmware versions that match each other are in the readme.txt file on the
CompactFlash Card.
235906 <location>TM: 24 V power supply missing
Reaction: NONE
Acknowledge: NONE
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005