Siemens SINUMERIK 840D sl Function Manual page 702

Safety integrated

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11.3 Safety messages for SINAMICS S120

SI P1 (CU): Brake control defective

For fault value 30, 31:

Fault for "Close brake"

Brake not connected or interrupted cable (check whether for p1278 = 1 and p9602/p9802 = 0 (SBC switched-

out) the brake opens).

Short-circuit in the brake winding.

For fault value 40:

Fault in the "Brake closed" state

For fault value 50:

Fault in the brake control of the Control Unit or communications error between the Control Unit and Motor

Module (diagnostics of the brake control).

For fault value = 80:

Safe Brake Adapter. Fault in the brake control of the Control Unit or communications error between the

Control Unit and Motor Module (diagnostics of the brake control).

For fault value = 90:

Brake released for service purposes (X4).

Check parameter p1278 (with SBC only p1278 = 0 is permissible).

● Select Safe Torque Off and then deselect again

● Check the setting of the power unit data set for a parallel connection for the control of the holding brake

● Check the connection of the motor holding brake.

● 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 control cabinet is EMC-compliant and the cable routing (e.g. connect the motor cable

shield and brake conductors with the shield connecting plate or screw the motor connector to the

● Replace the Motor Module involved.

Operation with Safe Brake Module or Safe Brake Adapter:

● Check the connection of the Safe Brake Module or Safe Brake Adapter.

● Replace the Safe Brake Module or Safe Brake Adapter.

SI P1 (CU): Internal software error

IMMEDIATELY (POWER ON)

Function Manual, 12/2017, 6FC5397-4BP40-6BA1

Safety Integrated