08/2005 Overview of Alarms
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© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
(make the value in MD 1465: $MD_SWITCH_SPEED_MSD_AM less than the value in
MD 1146: $MD_MOTOR_MAX_ALLOWED_SPEED.
Program Con-
tinuation:
Clear alarm with the RESET key in all channels. Restart part program.
300772 Axis %1 drive %2 asynchronous mode: speed control gain too high
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The value in MD 1451: $MD_SPEEDCTRL_GAIN_1_AM (proportional gain of AM speed
controller) is too high.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reactions: - 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.
Remedy: Please inform the authorized personnel/service department. The current set in MD1019:
$MD_SPEEDCTRL_GAIN_1_AM (proportional gain of AM speed controller).
Program Con-
tinuation:
Clear alarm with the RESET key in all channels. Restart part program.
300773 Axis %1 drive %2 asynchronous mode: feedforward control structure not possible
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: In asynchronous mode (select by MD 1465 < MD 1146) a feedforward control structure
(MD 1004, bit 0 = 1) is not possible.
• Modify MD 1465: $MD_SWITCH_SPEED_MSD_AM (switchover speed MSD/AM)
• Modify MD 1146: $MD_MOTOR_MAX_ALLOWED_SPEED (maximum motor speed)
• Modify MD 1004: $MD_CTRL_CONFIG (configuration structure)
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reactions: - 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.
Remedy: Please inform the authorized personnel/service department.
Rectify the error in the entry for the feedforward control structure MD 1004 or by deselect-
ing the asynchronous mode MD 1465 > MD 1146.
• Modify MD 1004: $MD_CTRL_CONFIG (configuration structure)
• Modify MD 1465: $MD_SWITCH_SPEED_MSD_AM (switchover speed MSD/AM)
• Modify MD 1146: $MD_MOTOR_MAX_ALLOWED_SPEED (maximum motor speed)
Program Con-
tinuation:
Clear alarm with the RESET key in all channels. Restart part program.
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