Siemens SINUMERIK 840D sl Series Diagnostics Manual page 907

08/2005
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
Remedy: • Check encoders, encoder lines and connectors between drive motor and 611D module.
Check for temporary interruptions (loose contact) caused, for example, by movements in
trailing cable. If necessary, replace the motor cable.
• Incorrect cable type
• Controller hardware not suitable for EnDat interface (e.g. control module with EPROM)
Program Con- Switch control OFF - ON.
tinuation:
310606
Axis %1 drive %2 external valve voltage supply failed
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The external 26.5 V supply is monitored for undervoltage in the closed-loop control.
Check the monitoring criteria:
• Voltage range (average) 26.0 V to 27.0 V
• Ripple factor 240 mVss
• No voltage failures
Reactions: - Mode group 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: The external 26.5 V supply is monitored for undervoltage in the closed-loop control.
Check the monitoring criteria:
• Voltage range (average) 26.0 V to 27.0 V
• Ripple factor 240 mVss
• No voltage failures
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
310607
Axis %1 drive %2 valve not responding
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The valve is not responding to the valve slide setpoint. Cause: valve not connected or
valve has no valve slide checkback signal.
Reactions: - Mode group 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 AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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