Siemens SINUMERIK 840D Series Diagnostics Manual page 477

11.02
300501
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300502
Parameters:
Definitions:
Reactions:
Remedy:
 Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
Axis %1 drive %2 maximum current monitoring
%1 = NC axis number
%2 = Drive number
1. A serious fault occured during actual current measurement.
2. The maximum current threshold was exceeded while the rotor position identification
was active (FDD only).
- 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.
• Modify MD 1107: $MD_INVERTER_MAX_CURRENT (transistor limit current)
• Check the motor data (motor code)
• Check the controller data, current/speed controller gain too high
• Reduce MD 1145: $MD_STALL_TORQUE_REDUCTION (stall torque reduction factor).
• Check the power section and motor terminals (including motor protection), possibly
power section too small
• Increase MD 1254: $MD_CURRENT_MONITOR_FILTER_TIME (time constant for cur-
rent monitoring)
• Error in actual current measurement (if necessary, replace 611D power section or con-
troller module)
• If rotor position identification is active, check MD 1019
$MD_CURRENT_ROTORPOS_IDENT (current for rotor position identification) and, if
necessary, reduce the setting.
Switch control OFF - ON.
Axis %1 drive %2 maximum current monitoring of phase current R
%1 = NC axis number
%2 = Drive number
The phase current R 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)
• Motor has ground or winding fault
• Check the controller data
• 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)
1 Alarms
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