Si Cu: Brake Control Error - Siemens Sinamics S120 Diagnostic Manual

201630 <location>SI CU: Brake control error
Message value: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: OFF2
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The drive-based "Safety Integrated" function in the Control Unit (CU) has detected a brake control error and initiated
a STOP A.
Fault value (r0949, interpret decimal):
10, 11:
Fault in "open holding brake" operation.
- Parameter p1278 incorrectly set.
- No brake connected or wire breakage (check whether brake releases for p1278 = 1 and p9602/p9802 = 0 (SBC de-
activated)).
- Ground fault in brake cable.
20:
Fault in "brake open" state.
- Short-circuit in brake winding.
30, 31:
Fault in "close holding brake" operation.
- No brake connected or wire breakage (check whether brake releases for p1278 = 1 and p9602/p9802 = 0 (SBC de-
activated)).
- Short-circuit in brake winding.
40:
Fault in "brake closed" state.
50:
Fault in the brake control circuit of the Control Unit or communication fault between the Control Unit and Motor Module
(brake control).
80:
SafeBrakeAdapter: Fault in the brake control circuit of the Control Unit or communication fault between Control Unit
and Motor Module (brake control diagnostics).
Note:
The following causes may apply to fault values:
- motor cable is not shielded correctly.
- defect in control circuit of the Motor Module.
Remedy: - check parameter p1278 (for SBC, only p1278 = 0 is permissible).
- select Safe Torque Off and de-select again.
- check the motor holding brake connection.
- check the function of the motor holding brake.
- check whether there is a DRIVE-CLiQ communication error between the Control Unit and the Motor Module involved
and, if required, carry out a diagnostics routine for the faults identified.
- check that the electrical cabinet design and cable routing are in compliance with EMC regulations (e.g. shield of the
motor cable and brake conductors are connected with the shield connecting plate and the motor connectors are tightly
screwed to the housing).
- replace the Motor Module involved.
Operation with Safe Brake Module or Safe Brake Adapter:
- check the Safe Brake Module or Safe Brake Adapter connection.
- replace the Safe Brake Module or Safe Brake Adapter.
Note:
CU: Control Unit
SBC: Safe Brake Control
SI: Safety Integrated
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
SINAMICS alarms
561