Siemens SINUMERIK 840D sl Function Manual page 730

Diagnostics
11.3 Safety messages for SINAMICS S120
A01783 SBT brake closing time exceeded
Explanation The maximum time (11 s) to close the brake during the brake test has been exceeded.
Alarm value (r2124, interpret binary):
Bit 0 = 1:
Internal brake was not able to be closed.
Bit 1 = 1:
External brake was not able to be closed.
Remedy When using an external brake, check whether the feedback signal "Brake closed" is correctly interconnected
with the control word of the brake test (p10230.5, p10235.5).
When using an internal brake with external feedback signal, check whether the feedback signal is correctly
interconnected with the extended brake control.
Perform a safe acknowledgment.
Restart the brake test (p10230.1, p10235.1).
A01784 SBT brake test canceled with error
Response NONE
Acknowledg‐ NONE
ment
Explanation The Safe Brake Test was canceled as a result of a fault
Alarm value (r2124, interpret binary):
Bit 17 = 1: Error in the brake test sequence (for the cause, see bit 0 ... 10).
Bit 18 = 1: The internal brake is closed. It must be open when testing the external brake (p10202).
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).
730
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated