Siemens SINUMERIK 840D Series Diagnostics Manual page 478
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- Function manual (920 pages) ,
- Diagnostics manual (714 pages) ,
- Operating turning (713 pages)
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1 Alarms
Program Continuation:
300503
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300504
Parameters:
Definitions:
Reactions:
Remedy:
1-478
Switch control OFF - ON.
Axis %1 drive %2 maximum current monitoring of phase current S
%1 = NC axis number
%2 = Drive number
The phase current S is greater than or equal to 1.05 times the maximum power section
current MD 1107: $MD_INVERTER_MAX_CURRENT (transistor limit current).
- 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.
Please inform the authorized personnel/service department.
• Check max. power section current in MD 1107 $MD_INVERTER_MAX_CURRENT
(transistor limit current)
• Check the motor data (motor code)
• Check the controller data
• Motor has ground or winding fault
• Check the power section and motor terminals (including motor protection)
• Error in actual current measurement (if necessary, replace 611D power section or con-
troller module)
Switch control OFF - ON.
Axis %1 drive %2 measuring circuit error of motor measuring system
%1 = NC axis number
%2 = Drive number
Signal level of the motor encoder too low or disturbed.
- 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.
Please inform the authorized personnel/service department.
• 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.
• Check the shield connection of the front plate of the closed-loop control module (top
screw).
• Use original, preassembled encoder cable from Siemens (high degree of shielding).
• If necessary, replace the motor, encoder and/or cables.
• With linear motor, check the signal level; possibly, the measuring scale of the open
measuring system is polluted.
• For a gearwheel encoder, check the distance between the gearwheel and the sensor.
Replace the sensor or the defective gearwheel.
• Replace the control module.
• Check the metallized intermediate circuit cover.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
Siemens AG, 2002. All rights reserved
11.02
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