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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-120 minutes
Siemens 300748 - Axis drive monitoring cycle times of both axes differ
The monitoring cycles set in MD 1300: $MD_SAFETY_CYCLE_TIME (monitoring cycle) for the two axes of a 2-axis module are not identical. Request: During boot-up of the control 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.
300748
Siemens 300748 - Axis drive monitoring cycle times of both axes differ
Axis drive monitoring cycle times of both axes differ
The monitoring cycles set in MD 1300: $MD_SAFETY_CYCLE_TIME (monitoring cycle) for the two axes of a 2-axis module are not identical. Request: During boot-up of the control 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.
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 monitoring cycles set in MD 1300: $MD_SAFETY_CYCLE_TIME (monitoring cycle) for the two axes of a 2-axis module are not identical.
- Request: During boot-up of the control
Troubleshooting Steps
- 1Please inform the authorized personnel/service department.
- 2Check and, if necessary, correct MD 1300: $MD_SAFETY_CYCLE_TIME (monitoring cycle) on all drives of the module.
- 3Switch control OFF - ON
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