Siemens SINAMICS S Series - F08701 CBC: NMT state change; A08751 CBC: Telegram loss; A08752 CBC: Error counter for error passive exceeded; A08753 CBC: Message buffer overflow

List of faults and alarms
Faults and Alarms
3-1605
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Reaction upon A: NONE
Acknowl. upon A: NONE
F08701 CBC: NMT state change
Drive object: A_INF, B_INF, CU_LINK, CU_S, DMC20, SERVO, S_INF, TB30, TM15, TM15DI_DO, TM17, TM31, TM41,
TM54F_MA, TM54F_SL, VECTOR
Reaction: A_INFEED: OFF2
SERVO: OFF3
VECTOR: OFF3
Acknowledge: IMMEDIATELY
Cause: A CANopen NMT state transition from "operational" to "pre-operational" or after "stopped".
Fault value (r0949, interpret decimal):
1: CANopen NMT state transition from "operational" to "pre-operational".
2: CANopen NMT state transition from "operational" to "stopped".
Note:
In the NMT state "pre-operational", process data cannot be transferred and in the NMT state "stopped", no process
data and no service data can be transferred.
Remedy: None necessary.
Acknowledge the fault and continue operation.
A08751 CBC: Telegram loss
Drive object: A_INF, B_INF, CU_LINK, CU_S, DMC20, SERVO, S_INF, TB30, TM15, TM15DI_DO, TM17, TM31, TM41,
TM54F_MA, TM54F_SL, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The CAN controller has lost a receive message (telegram).
Remedy: Reduce the cycle times of the receive messages.
A08752 CBC: Error counter for error passive exceeded
Drive object: A_INF, B_INF, CU_LINK, CU_S, DMC20, SERVO, S_INF, TB30, TM15, TM15DI_DO, TM17, TM31, TM41,
TM54F_MA, TM54F_SL, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The error counter for the send or receive telegrams has exceeded the value 127.
Remedy: - check the bus cable
- set a higher baud rate (p8622).
- check the bit timing and if required optimize (p8623).
See also: p8622 (CBC baud rate), p8623 (CBC bit timing selection)
A08753 CBC: Message buffer overflow
Drive object: A_INF, B_INF, CU_LINK, CU_S, DMC20, SERVO, S_INF, TB30, TM15, TM15DI_DO, TM17, TM31, TM41,
TM54F_MA, TM54F_SL, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: A message buffer overflow.
Alarm value (r2124, interpret decimal):
1: Non-cyclic send buffer (SDO response buffer) overflow.
2: Non-cyclic receive buffer (SDO receive buffer) overflow.
3: Cyclic send buffer (PDO send buffer) overflow.
Remedy: Check the bus cable.
Set a higher baud rate (p8622).
Check the bit timing and if required optimize (p8623).
Re alarm value = 2:
- reduce the cycle times of the SDO receive messages.
See also: p8622 (CBC baud rate), p8623 (CBC bit timing selection)