Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-120 minutes

Alarm 300908

Siemens 300908 - Axis drive stop C triggered

The drive is disabled via STOP C. At the end of the stop reaction, the drive remains under control, the axis is monitored for SBH. Request: In monitoring cycle. If STOP C has been triggered, this can have several reasons (depending on the configuration): 1. The safe speed monitoring has been triggered (MD 1361: $MD_SAFE_VELO_STOP_MODE (SGspecific stop reaction) or MD 1363: $MD_SAFE_VELO_STOP_REACTION (SG-specific stop reaction) (840D as of SW4.2)). 2. The safe end-position monitoring has been triggered (MD 1362: $MD_SAFE_POS_STOP_MODE (safe end position stop reaction)). The alarm indicates the initiation of a "deceleration at current limit" and the internal activation of "safe standstill" Control reaction: NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

Siemens SINUMERIKServo/AxisIntermediate30-120 minutes

300908

Siemens 300908 - Axis drive stop C triggered

Axis drive stop C triggered

The drive is disabled via STOP C. At the end of the stop reaction, the drive remains under control, the axis is monitored for SBH. Request: In monitoring cycle. If STOP C has been triggered, this can have several reasons (depending on the configuration): 1. The safe speed monitoring has been triggered (MD 1361: $MD_SAFE_VELO_STOP_MODE (SGspecific stop reaction) or MD 1363: $MD_SAFE_VELO_STOP_REACTION (SG-specific stop reaction) (840D as of SW4.2)). 2. The safe end-position monitoring has been triggered (MD 1362: $MD_SAFE_POS_STOP_MODE (safe end position stop reaction)). The alarm indicates the initiation of a "deceleration at current limit" and the internal activation of "safe standstill" Control reaction: NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm.

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 C.
  • At the end of the stop reaction, the drive remains under control, the axis is monitored for SBH.
  • Request: In monitoring cycle.

Troubleshooting Steps

  1. 1Please inform the authorized personnel/service department.
  2. 2The user must check the cause and initiate the corresponding measures.
  3. 3Clear alarm with the RESET key. Restart part program

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