Siemens SINUMERIK 840D Series Diagnostics Manual page 489

11.02
Definitions:
Reactions:
Remedy:
Program Continuation:
300614
Parameters:
Definitions:
Reactions:
Remedy:
 Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
The motor temperature (measured via the temperature sensor KTY 84 and fed to the
module through the motor encoder cable) has exceeded the temperature limit in drive MD
1607: $MD_MOTOR_TEMP_SHUTDOWN_LIMIT (motor temperature shutdown limit).
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
• Motor overloaded.
• Check the motor data. Possibly the machine current was too high as a result of
incorrect motor data.
• Check the temperature sensor (2nd sensor possible with MSD).
• Check the motor encoder cable.
• Motor encoder defective.
• Check the motor fan.
• Check the acceleration.
• If necessary, use a higher-performance motor.
• Winding fault in motor.
• 611D control module defective.
• Modify MD 1230: $MD_TORQUE_LIMIT (1st torque limit), MD 1235: POWER_LIMIT
(1st power limit) set too high.
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Axis %1 drive %2 time monitoring of motor temperature
%1 = NC axis number
%2 = Drive number
The motor temperature (measured via the temperature sensor KTY 84 and fed to the
module through the motor encoder cable) has exceeded the temperature limit in drive MD
1602: $MD_MOTOR_TEMP_WARN_LIMIT for a longer period of time than permitted in
drive machine data 1603 $MD_MOTOR_TEMP_ALARM_TIME.
$MD_MOTOR_TEMP_ALARM_TIME (time stage motor temperature alarm).
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
• Motor overloaded.
• Check the motor data. Possibly the machine current was too high as a result of incor-
rect motor data.
• Check the temperature sensor.
• Check the motor encoder cable.
1 Alarms
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