Siemens SINAMICS S210 - Brake Control: External Release Active; SI P2: Fault in the Switch-Off Signal Path of the Second Channel

Cause: The drive-integrated "Safety Integrated" function in monitoring channel 2 has detected a brake control error and initiated
a STOP A.
- OCC cable shield is not correctly connected.
- defect in the brake control circuit of the drive.
Fault value (r0949, decimal interpretation):
100, 101, 102:
Fault in "open brake" operation.
- brake not closed or interrupted cable.
- ground fault in brake cable.
300, 301, 302:
Fault in "close brake" operation.
- brake not closed or interrupted cable.
200:
Fault in the "Brake open" state.
- short-circuit in brake winding.
201, 202:
Fault in the "Brake open" state.
- defective hardware.
400, 401, 402:
Fault in "brake closed" state.
60, 70:
Fault in the brake control of the drive or a communication error between the monitoring channels (brake control diagnostics).
Remedy: - select STO and then de-select again.
- check the motor holding brake connection.
- check the function of the motor holding brake.
- carry out a diagnostics routine for the faults involved.
- check for EMC-compliant control cabinet design and cable routing (e.g. shield OCC cable with shield terminal and shield
plate, check the connection of the brake conductors).
- replace drive.
Note:
OCC: One Cable Connection (one cable system)
SBC: Safe Brake Control
SI: Safety Integrated
STO: Safe Torque Off
F30631 Brake control: External release active
Message value: -
Drive object: All objects
Reaction: OFF2
Acknowledge: IMMEDIATELY (POWER ON)
Cause: For mounting purposes, the brake is supplied with voltage via terminal X4.1 and released.
Remedy: If required, again remove the power supply at X4.1.
A30640 (F) SI P2: Fault in the switch-off signal path of the second channel
Message value: %1
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Faults and alarms
13.2 List of faults and alarms
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA 521