Siemens SINUMERIK 840D Series Diagnostics Manual page 548

1 Alarms
Reactions:
Remedy:
Program Continuation:
310608
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
310609
Parameters:
Definitions:
Reactions:
1-548
- Mode group not ready.
- Channel not ready.
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
• Valve without valve slide checkback signal: Modify MD 5530: reset bit 2
• Check the valve connection.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 drive %2 speed controller at limit
%1 = NC axis number
%2 = Drive number
The speed controller output is lying for an impermissibly long time at its limit (MD 5605:
$MD_SPEEDCTRL_LIMIT_TIME and MD 1606: (speed controller limit threshold). The
monitoring system is only active when the speed setpoint is below the speed threshold in
MD 5606: SPEEDCTRL_LIMIT_THRESHOLD (speed controller limit threshold).
- The NC switches to follow-up mode.
- Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
• Is the drive blocked?
• Is the encoder connected? (check the encoder cable)
• Check the shield connection on the encoder cable
• Encoder defective?
• Check the encoder resolution
• The Uce monitoring circuit has been activated (perform a reset by switching the power
supply off and on again).
• Replace the control module.
• Modify MD 5605: SPEEDCTRL_LIMIT_TIME and MD 5606:
SPEEDCTRL_LIMIT_THRESHOLD in accordance with the mechanical and dynamic
features of the axis.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 drive %2 encoder cut-off frequency exceeded
%1 = NC axis number
%2 = Drive number
Actual velocity value exceeds encoder limit frequency fg,max = 650kHz
- Mode group not ready.
- Channel not ready.
- Channel not ready.
- NC Start disable in this channel.
- NC Stop on alarm.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02