Siemens SINUMERIK 840D sl Series Diagnostics Manual page 788

Overview of Alarms
Remedy: - check whether the permissible ambient temperature for the terminal module is being
maintained.
- replace the terminal module.
235804 <location>TM: CRC
Reaction: NONE
Acknowledge: NONE
Cause: A checksum error has occurred when reading-out the program memory on the terminal
module.
Fault value (r0949, hexadecimal):
Difference between the checksum at POWER ON and the actual checksum.
Remedy: - check whether the permissible ambient temperature for the terminal module is being
maintained.
- replace the terminal module.
235805 <location>TM: Incorrect EPROM checksum
Reaction: NONE
Acknowledge: NONE
Cause: Internal parameter data is corrupted.
Alarm value (r2124, hexadecimal):
01: EEPROM access error.
02: Too many blocks in the EEPROM.
Remedy: - check whether the permissible ambient temperature for the module is maintained.
- replace the module.
235807 <location>TM: Sequence control, time monitoring
Reaction: NONE
Acknowledge: NONE
Cause: Error, timeout, sequence control on the terminal module.
Remedy: Replace the terminal module.
235820 <location>TM DRIVE-CLiQ: Telegram error
Reaction: OFF1 (OFF2)
Acknowledge: IMMEDIATELY
Cause: A DRIVE-CLiQ communications error has occurred between the control unit and the
terminal module involved.
Fault value (r0949, hexadecimal):
01: CRC error.
02: Telegram is shorter than specified in the length byte or in the receive list.
03: Telegram is longer than specified in the length byte or in the receive list.
04: The length of the receive telegram does not match the receive list.
05: The type of the receive telegram does not match the receive list.
06: The address of the terminal module in the telegram and in the receive list do not match.
07: Terminal module expects a SYNC telegram, but the receive telegram is not a SYNC
telegram.
08: Terminal module does not expect a SYNC telegram, but the receive telegram is a
SYNC telegram.
09: The error bit in the receive telegram is set.
10: The receive telegram is too early.
Remedy: - carry-out a POWER ON.
- check the electrical cabinet design and cable routing for EMC compliance
- check the DRIVE-CLiQ wiring (interrupted cable, contacts, ...).
See also: p9916
2-788
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005