Siemens SINUMERIK 840D sl Function Manual page 600

Diagnostics
11.2 NCK safety alarms for SINUMERIK 840D sl
20096 Axis %1 brake test aborted, additional info %2
Parameter %1 = axis name, spindle number
%2 = fault information, based on $VA_FXS_INFO
Explanation The brake test has detected a problem. The additional information provides details of the cause of the alarm.
An explanation is provided in the documentation about the system variables $VA_FXS_INFO
Supplementary info:
0: No additional information available
1: Axis type is neither a PLC nor a command axis
2: Limit position reached, motion stopped
3: Interrupted by an axis RESET (DB31-61, DBB28 bit1)
4: Monitoring window exited
5: Torque reduction rejected by drive
6: PLC has withdrawn the enable signal
Response Alarm display
Interface signals are set
Remedy Note the supplementary conditions of the brake test, refer to supplementary information
Program con‐ Clear the alarm with the Clear key or with NC-START.
tinuation
20097 Axis %1 incorrect direction, brake test
Parameter %1 = axis name, spindle number
Explanation As a result of the selected traversing direction, the brake test is carried out for the existing load torque with
an incorrect torque.
Response Alarm display
Remedy
● Carry out the brake test in the other traversing direction
● Adapt drive parameter p1532 more precisely to the actual situation. The alarm only occurs if the actual
torque deviates by more than 7.5% from SINAMICS parameter p1532
● Using MD $MA_SAFE_BRAKETEST_CONTROL, bit 0 = 1, activate the automatic load torque
determination at the beginning of the brake test.
Program con‐ Clear the alarm with the Clear key or with NC-START.
tinuation
20149 Channel %1 Block %2 motion-synchronized action: Index invalid
Parameter %1 = channel number
%2 = block number
Explanation An invalid index was used when accessing a variable in the motion-synchronous action.
Example: ...DO $R[$AC_MARKER[1]] = 100
The error occurs if marker 1 has a higher value than the maximum permissible R-parameter number.
Response NC start disable in this channel
Interface signals are set
Alarm display
NC stop for alarm
600
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated