Siemens SINUMERIK 840D Diagnostics Manual page 559

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10.04
300607
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300608
Parameters:
Definitions:
Reactions:
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
Axis %1 drive %2 current controller at limit
%1 = NC axis number
%2 = Drive number
The specified current setpoint cannot be injected into the motor even though the maxi-
mum voltage has been provided. Cause: Motor not connected or phase missing.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
• Check the motor converter connection (phase missing).
• Check the motor protection.
• DC link voltage available?
• Check the DC link connections (check that the screws are tight).
• Check the contact between the closed-loop control module and the power section.
• Check the contact between the fixing screw and the closed-loop control module.
• The Uce monitoring circuit has been activated (perform a reset by switching the power
supply off and on again).
• Replace the control module.
• Replace the power section.
• Replace the motor.
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 1605:
$MD_SPEEDCTRL_LIMIT_TIME and MD 1606: The torque setpoint has exceeded the
torque limit or the current setpoint the current limit. The monitoring system is only active
when the speed setpoint is below the speed threshold in MD 1606:
$MD_SPEEDCTRL_LIMIT_THRESHOLD.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
1 Alarms
1-559

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