Siemens SINUMERIK 840Di Diagnostic Manual page 766

Overview of Alarms
SIMODRIVE alarms
300900 Axis %1 drive %2 stop A triggered
Parameters: %1 = Axis number
%2 = Drive number
Definitions: The drive is disabled via STOP A. This blocks the pulses over the relay "Antrieb-IMP".
Request: In monitoring cycle.
If STOP A has been triggered, this can have several reasons:
1. The timer in MD 1356: $MD_SAFE_PULSE_DISABLE_DELAY (delay pulse disable) of STOP B
has expired.
2. The speed threshold in MD 1360: $MD_SAFE_STANDSTILL_VELO_TOL (stop speed pulse
disable)of STOP B has not been reached.
3. The test of the deactivation path has been requested by the user through SGE "Test stop selection",
but the pulses were not deleted in MD 1357: $MD_SAFE_PULSE_DIS_CHECK_TIME (time for
testing the pulse disable) when the time stage expired.
4. Safe brake ramp has responded.
5. "SG-specific stop reaction" is set to STOP A and has responded.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. The user must find the cause and take
appropriate measures.
Program Switch control OFF - ON.
Continuation:
300901 Axis %1 drive %2 stop B triggered
Parameters: %1 = Axis number
%2 = Drive number
Definitions: The drive is disabled via STOP B. This blocks the pulses over the relay "Antrieb-IMP".
Request: In monitoring cycle.
If STOP B has been triggered, this can have several reasons:
1. Safe zero speed control has responded.
2. Call after STOP F, that means an error has occurred during cross-comparison.
3. "SG-specific stop reaction" is set to STOP B and has responded.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. The user must check the cause and
initiate the corresponding measures.
Program Switch control OFF - ON.
Continuation:
2-766
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006