Sinumerik Alarm 300768 Axis %1 drive %2 numerator bandwidth > double blocking frequency
Parameters:
%1 = NC axis number
%2 = Drive number
Definitions:
The bandwidth numerator of a current or speed setpoint filter is greater than twice the blocking frequency. This error message is only issued for the general bandstop filter if:
• Speed setpoint filter 1:
• MD 1516 > 0.0 or
• MD 1520 <> 100.0
• Speed setpoint filter 2:
• MD 1519 > 0.0 or
• MD 1521 <> 100.0
• Current setpoint filter 1:
• MD 1212 > 0.0
• Current setpoint filter 2:
• MD 1215 > 0.0
• Current setpoint filter 3:
• MD 1218 > 0.0
• Current setpoint filter 4:
• MD 1221 > 0.0 The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not ready).
Reactions:
– 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.
Remedy:
Please inform the authorized personnel/service department. The bandwidth numerator must be less than twice the blocking frequency.
• Current setpoint filter 1:
• MD 1212 <= 2 * MD 1210• Current setpoint filter 2:• MD 1215 <= 2 * MD 1213• Current setpoint filter 3:• MD 1218 <= 2 * MD 1216• Current setpoint filter 4:• MD 1221 <= 2 * MD 1219• Speed setpoint filter 1:• MD 1516 <= 2 * MD 1514• Speed setpoint filter 2:• MD 1519 <= 2 * MD 1517• Modify MD 1212: $MD_CURRENT_FILTER_1_BW_NUM (numerator bandwidth current setpoint filter 1)• Modify MD 1210: $MD_CURRENT_FILTER_1_SUPPR_FREQ (suppression frequency current setpoint filter 1)• Modify MD 1215: $MD_CURRENT_FILTER_2_BW_NUM (numerator bandwidth current setpoint filter 2)• Modify MD 1213: $MD_CURRENT_FILTER_2_SUPPR_FREQ (suppression frequency current setpoint filter 2)• Modify MD 1218: $MD_CURRENT_FILTER_3_BW_NUM (numerator bandwidth current setpoint filter 3)• Modify MD 1216: $MD_CURRENT_FILTER_3_SUPPR_FREQ (suppression frequency current setpoint filter 3)• MD1221: $MD_CURRENT_FILTER_4_BW_NUM (numerator bandwidth current set- point filter 4)• Modify MD 1219: $MD_CURRENT_FILTER_4_SUPPR_FREQ (suppression frequency current setpoint filter 4)• Modify MD 1516: $MD_SPEED_FILTER_1_BW_NUMERATOR (numerator bandwidth speed setpoint filter 1)• Modify MD 1514: $MD_SPEED_FILTER_1_SUPPR_FREQ (suppression frequency speed setpoint filter 1)• Modify MD 1519: $MD_SPEED_FILTER_2_BW_NUMERATOR (numerator bandwidth speed setpoint filter 2)• Modify MD 1517: $MD_SPEED_FILTER_2_SUPPR_FREQ (suppression frequency speed setpoint filter 2)Program Continuation:
Clear alarm with the RESET key in all channels. Restart part program.
References
- Siemens Diagnostics Guide by Siemens