Siemens Sinumerik 840D sl Function Manual page 779

10/15
Remedy
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Bit 19 = 1: The external brake is closed. It must be open when testing
the internal brake (p10202).
Bit 20 = 1: Not all of the brakes are open (p10202).
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).
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).
10.3Safety messages for SINAMICS S120
Diagnostics
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