List of Fault and Alarm messages
Faults and Alarms
3-391
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
F00453 Motor Stalled
Reaction: OFF 2
Acknowledge: Quit fault eg. via DI2
Cause: • In SLVC or VC (p1300 greater than 20) and Ramp rate too fast
• In SLVC or VC (p1300 greater than 20) and done OFF2 and RUN onto a spinning motor without Flying start
enabled
• In SLVC (p1300 = 20 or 21) and load too large at very low frequency
• In SLVC or VC (p1300 greater than 20) and no motor connected or motor too small for inverter
• In VC, the motor cable phase sequence (U-V-W) and the encoder cable wiring may be wired up incorrectly.
• The speed controller settings are not optimised to the application. This can cause instabilities.
Remedy: • Reduce ramp rate in p1120
• Enable flying start (p1200 equal to 1)
• Increase boost in p1611
• Connect motor or use larger motor for this inverter or use VF mode (p1300 less than 20).
• Correct the wiring to the motor and / or the encoder as required. Confirm the rotation direction in V/f control
mode and compare parameters r0061 and r0021.
• Optimise the speed controller settings (gain and integration time).
A00501 Current Limit
Reaction: NONE
Acknowledge: NONE
Cause: • Motor power does not correspond to the inverter power
• Motor leads are too long
• Earth faults
Remedy: Check the following:
• Motor power (P0307) must correspond to inverter power (r0206).
• Cable length limits must not be exceeded.
• Motor cable and motor must have no short-circuits or earth faults
• Motor parameters must match the motor in use
• Value of stator resistance (P0350) must be correct
• Motor must not be obstructed or overloaded
• Increase Ramp-up time (P1120)
• Reduce Starting boost level (P1312)
A00502 Overvoltage limit
Reaction: NONE
Acknowledge: NONE
Cause: Overvoltage limit is reached. This warning can occur during ramp down, if the Vdc controller is disabled (P1240 = 0).
Remedy: If this warning is displayed permanently, check drive input voltage.
A00503 UnderVoltage Limit
Reaction: NONE
Acknowledge: NONE
Cause: • Main supply failed
• Main supply and consequently DC-link voltage (r0026) below specified limit.
Remedy: Check main supply voltage.
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