Siemens SINUMERIK 840D sl Function Manual page 731

A01784 SBT brake test canceled with error
Bit 21 = 1: axis position during the brake test invalid as a result of parking axis.
Bit 22 = 1: Internal software error.
Bit 23 = 1: The permissible position range of the axis when the brake is closed was violated (p10212/p10222).
Bit 24 = 1: The tested internal brake was opened during the active brake test.
Bit 25 = 1: The tested external brake was opened during the active brake test.
Bit 26 = 1: During the active brake test, the test torque as exited its tolerance bandwidth (20%).
Cause for alarm value bit 17:
Bit 0 = 1: Operation when selecting the brake test not enabled (r0899.2=0).
Bit 1 = 1: External fault occurred (e.g. the started brake test was canceled by the user).
Bit 2 = 1: A brake is closed when selecting the brake test.
Bit 3 = 1: A brake is closed when the determining the load torque.
Bit 4 = 1: A fault has occurred with a stop response (e.g. OFF1, OFF2 or OFF3).
Bit 5 = 1: The axis setpoint is speed is too high when selecting the brake test.
Bit 6 = 1: The actual speed (r0063) of the axis is too high (e.g. the brake is not holding the axis during the
brake test).
Bit 7 = 1: Incorrect speed controller mode (speed control without encoder or U/f operation).
Bit 8 = 1: Closed-loop control has not been enabled or function generator is active.
Bit 9 = 1: The closed-loop control does not to switchover to the brake test mode (e.g. because no PI speed
control has been parameterized).
Bit 10 = 1: Torque limit reached (r1407.7, r1408.8).
Remedy Remove the cause of the fault.
Perform a safe acknowledgment.
If required, restart the brake test.
For bit 17 = 1 with bit 6 = 1 or bit 23 = 1:
If the brake closing time for the motor holding brake (p1217) is set to short, then when the brake test starts,
the brake is closed too late. The brake closing time must be adapted (p1217).
A01785 SBT brake test configuration error
Response NONE
Acknowledg‐ NONE
ment
Explanation Error when parameterizing the brake test.
In this configuration, the brake test cannot be started, or cannot be started without errors.
Alarm value (r2124, interpret decimal):
1: No motion monitoring functions have been enabled
2: Two internal brakes have been configured (p10202).
4: No brake has been configured (p10202).
8: The brake test is configured for an internal brake, however the Safe Brake Control is not enabled (p9602/
p9802).
16: The Safe Brake Test and safety without encoder are simultaneously enabled (p9306/p9506). This is not
permitted.
32: The Safe Brake Test and vector Uf control are enabled. In this closed-loop control mode, the Safe Brake
Test is not possible.
Remedy Check the brake test parameterization.
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
11.3 Safety messages for SINAMICS S120
Diagnostics
731