Siemens Sinumerik 840D sl Diagnostic Manual page 746

Overview of Alarms
SINAMICS-Alarms
Cause: The condition "I_act = 0 and Uq_set_1 longer than 16 ms at its limit" is present and can be caused by
the following:
- motor not connected or motor contactor open.
- no DC link voltage present.
- Motor Module defective.
- the "flying restart" function is not activated.
Remedy: - connect the motor or check the motor contactor.
- check the DC link voltage (r0070).
- check the Motor Module.
- activate the "flying restart" function (p1200).
207411 <location>Drive: Flux controller output limited
Message -
value:
Drive object: SERVO
Reaction: SERVO: OFF2 (NONE, OFF1)
VECTOR: OFF2
Acknowledge: IMMEDIATELY
Cause: The specified flux setpoint cannot be reached although 90% of the maximum current has been spec-
ified.
- incorrect motor data.
- motor data and motor configuration (star/delta) do not match.
- the current limit has been set too low for the motor.
- induction motor (encoderless, open-loop controlled) in I2t limiting.
- the Motor Module is too small.
Remedy: - correct the motor data.
- check the motor configuration.
- correct the current limits (p0640, p0323).
- reduce the induction motor load.
- if required, use a larger Motor Module.
207411 <location>Drive: Flux setpoint not reached when building up excitation
Message -
value:
Drive object: VECTOR
Reaction: SERVO: OFF2 (NONE, OFF1)
VECTOR: OFF2
Acknowledge: IMMEDIATELY
Cause: When quick magnetizing is configured (p1401 Bit6 = 1) the specified flux setpoint is not reached
although 90 % of the maximum current is specified.
- incorrect motor data.
- motor data and motor configuration (star/delta) do not match.
- the current limit has been set too low for the motor.
- induction motor (encoderless, open-loop controlled) in I2t limiting.
- the Motor Module is too small.
Remedy: - correct the motor data.
- check the motor configuration.
- correct the current limits (p0640).
- reduce the induction motor load.
- if required, use a larger Motor Module.
- check motor supply cable.
- check power unit.
207412 <location>Drive: Commutation angle incorrect (motor model)
Message -
value:
Drive object: SERVO, VECTOR
Reaction: ENCODER (NONE, OFF2)
Acknowledge: IMMEDIATELY
2-746
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009