Siemens SINUMERIK 840Di Diagnostic Manual page 712

Overview of Alarms
SIMODRIVE alarms
300606 Axis %1 drive %2 flux controller at limit
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The specified flux setpoint cannot be achieved even though the maximum current has been provided.
Causes:
- Incorrect motor data (replacement circuit diagram data)
- Motor data and motor connection type (star/delta) do not match
- Motor has become unstable because motor data grossly wrong
- Current limit is too low for the motor (0.9 * MD 1238 * MD 1103 < MD 1136)
- Power section too small
Reaction: 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: Please inform the authorized personnel/service department. Remedy the cause.
- Modify MD 1238: $MD_CURRENT_LIMIT (current limit)
- Modify MD 1103: $MD_MOTOR_NOMINAL_CURRENT (motor nominal current)
- Modify MD 1136: $MD_MOTOR_NOLOAD_CURRENT (motor no-load current)
- Use greater power section.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
300607 Axis %1 drive %2 current controller at limit
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The specified current setpoint cannot be injected into the motor even though the maximum 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).
Reaction: 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: - 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.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
2-712
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006