How do I fix Siemens SINUMERIK alarm 300766?

1. Please inform the authorized personnel/service department. 2. Current setpoint filter: The value in MD 1210, 1213,1216 or 1219 must be smaller than the inverse value of two current controller cycles MD 1000: $MD_CURRENTCTRL_CYCLE_TIME (current controller cycle) (1/2*MD 1000 *31.25 microsec). 3. Speciality with SINUMERIK 810D: Current setpoint filters 2,3 and 4 are calculated in the speed controller cycle. 4. This means that MD 1213, 1216 or 1219 must be smaller than the inverse value of two speed controller cycles MD 1001: $MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle) (1/2*MD 1001 *31.25 microsec). 5. Clear alarm with the RESET key in all channels. Restart part program. 2-747

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-120 minutes

Alarm 300766

Siemens 300766 - Axis drive blocking frequency > Shannon frequency

The blocking frequency of a speed setpoint filter is greater than the Shannon sampling frequency from the sampling theorem Control reaction: NC not ready. The NC switches to follow-up mode. 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

300766

Siemens 300766 - Axis drive blocking frequency > Shannon frequency

Axis drive blocking frequency > Shannon frequency

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 blocking frequency of a speed setpoint filter is greater than the Shannon sampling frequency from the sampling theorem

Troubleshooting Steps

1Please inform the authorized personnel/service department.
2Current setpoint filter: The value in MD 1210, 1213,1216 or 1219 must be smaller than the inverse value of two current controller cycles MD 1000: $MD_CURRENTCTRL_CYCLE_TIME (current controller cycle) (1/2*MD 1000 *31.25 microsec).
3Speciality with SINUMERIK 810D: Current setpoint filters 2,3 and 4 are calculated in the speed controller cycle.
4This means that MD 1213, 1216 or 1219 must be smaller than the inverse value of two speed controller cycles MD 1001: $MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle) (1/2*MD 1001 *31.25 microsec).
5Clear alarm with the RESET key in all channels. Restart part program. 2-747

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