Siemens SINAMICS S Series - F08700 (A) CBC: Communications error

Faults and Alarms
List of faults and alarms
3-1604
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
F08700 (A) CBC: Communications error
Drive object: CU_LINK, CU_S, DMC20, SERVO, TB30, TM15, TM15DI_DO, TM17, TM31, TM41, TM54F_MA, TM54F_SL, VEC-
TOR
Reaction: A_INFEED: NONE
SERVO: OFF3 (NONE, OFF1, OFF2)
VECTOR: OFF3 (NONE, OFF1, OFF2)
Acknowledge: IMMEDIATELY
Cause: A CAN communications error has occurred.
Fault value (r0949, interpret decimal):
1: The error counter for the send telegrams has exceeded the BUS OFF value 255. The bus disables the CAN con-
troller.
- bus cable interrupted.
- bus cable not connected.
- incorrect baud rate.
- incorrect bit timing.
2: The master no longer interrogated the CAN node status longer than for its "life time". The "life time" is obtained
from the "guard time" (p8604[0]) multiplied by the "life time factor" (p8604[1]).
- bus cable interrupted.
- bus cable not connected.
- incorrect baud rate.
- incorrect bit timing.
- master fault.
Note:
The fault response can be set as required using p8641.
See also: p8604 (CBC node guarding), p8641 (CBC abort connection option code)
Remedy: - check the bus cable
- check the baud rate (p8622).
- check the bit timing (p8623).
- check the master.
See also: p8622 (CBC baud rate), p8623 (CBC bit timing selection)
Reaction upon A: NONE
Acknowl. upon A: NONE
F08700 (A) CBC: Communications error
Drive object: A_INF, B_INF, S_INF
Reaction: A_INFEED: NONE
SERVO: OFF3 (NONE, OFF1, OFF2)
VECTOR: OFF3 (NONE, OFF1, OFF2)
Acknowledge: IMMEDIATELY
Cause: A CAN communications error has occurred.
Fault value (r0949, interpret decimal):
1: The error counter for the send telegrams has exceeded the BUS OFF value 255. The bus disables the CAN con-
troller.
- bus cable interrupted.
- bus cable not connected.
- incorrect baud rate.
- incorrect bit timing.
2: The master no longer interrogated the CAN node status longer than for its "life time". The "life time" is obtained
from the "guard time" (p8604[0]) multiplied by the "life time factor" (p8604[1]).
- bus cable interrupted.
- bus cable not connected.
- incorrect baud rate.
- incorrect bit timing.
- master fault.
See also: p8604 (CBC node guarding), p8641 (CBC abort connection option code)
Remedy: - check the bus cable
- check the baud rate (p8622).
- check the bit timing (p8623).
- check the master.
See also: p8622 (CBC baud rate), p8623 (CBC bit timing selection)