Siemens SINUMERIK 840D Series Diagnostics Manual page 554

1 Alarms
310750
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
310751
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
310752
Parameters:
Definitions:
1-554
Axis %1 drive %2 feedforward gain too high
%1 = NC axis number
%2 = Drive number
The feedforward control gain is calculated from the reciprocal of the gain in drive MD
5435: CONTROLLED_SYSTEM_GAIN.
- NC not ready.
- Channel not ready.
- Channel not ready.
- NC Stop on alarm.
- NC Start disable in this channel.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
Increase the speed controller cycle time in MD 5001: SPEEDCTRL_CYCLE_TIME.
Reduce the force controller feedforward factor in MD 5247:
FORCE_FFW_WEIGHT.
Increase the gain in MD 5435: CONTROLED_SYSTEM_GAIN.
Clear alarm with the RESET key in all channels. Restart part program.
Axis %1 drive %2 proportional gain for speed controller too high
%1 = NC axis number
%2 = Drive number
The P gain of the speed controller is too high:
• Modify MD 5406: SPEEDCTRL_GAIN_A (gain on A-side of cylinder edge)
• or MD 5407: SPEEDCTRL_GAIN (gain for piston adjustment with lowest natural fre-
quency)
• or MD 5408: SPEEDCTRL_GAIN_B (gain on B-side of cylinder edge)
- NC not ready.
- Channel not ready.
- Channel not ready.
- NC Stop on alarm.
- NC Start disable in this channel.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
Enter a smaller value for the P gain of the speed controller:
• Modify MD 5406: SPEEDCTRL_GAIN_A (gain on A-side of cylinder edge)
• or MD 5407: SPEEDCTRL_GAIN (gain for piston adjustment with lowest natural fre-
quency)
• or MD 5408: SPEEDCTRL_GAIN_B (gain on B-side of cylinder edge)
Clear alarm with the RESET key in all channels. Restart part program.
Axis %1 drive %2 integral gain for speed controller invalid
%1 = NC axis number
%2 = Drive number
The integral gain in MD 5409: SPEEDCTRL_INTEGRATOR_TIME cannot be repre-
sented.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02