Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-120 minutes

Alarm 300900

Siemens 300900 - Axis drive stop A triggered

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) Control 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.

Siemens SINUMERIKServo/AxisIntermediate30-120 minutes

300900

Siemens 300900 - Axis drive stop A triggered

Axis drive stop A triggered

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) Control 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.

Safety

  • Drive/power/encoder circuit: hazardous voltages may remain in the DC link after power-off. Lock out / tag out, wait for discharge per the drive documentation, and use qualified personnel only.

Common Causes

  • The drive is disabled via STOP A.
  • This blocks the pulses over the relay "Antrieb-IMP".
  • Request: In monitoring cycle.

Troubleshooting Steps

  1. 1Please inform the authorized personnel/service department.
  2. 2The user must find the cause and take appropriate measures.
  3. 3Switch control OFF - ON

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