Siemens G120P

Fault rectification
6
A
larms and faults
49
Siemens AG
CM2G5111en
2014-05-16
Number Cause Solution
A07400 DC-link voltage maximum controller
(VDC_max controller) active
If intervention by the controller is not desirable:
 Increase the ramp-down times.
 Deactivate the VDC_max controller (p1240 = 0 for vector control, p1280 = 0 for
V/f control).
A07409 V/f control, current limiting controller
active
The alarm is automatically canceled after one of the following measures:
 Increase the current limit (p0640).
 Reduce the load.
 Reduce the up ramps for the setpoint speed.
A07805 Drive: Power unit overload I2t
 Reduce the continuous load.
 Adapt the duty cycle.
 Check the assignment of rated currents of motor and power unit.
A07850
A07851
A07852
External alarm 1 … 3 Parameters p2112, p2116 and p2117 determine the signal sources for the external
alarm 1… 3.
 The drive receives an alarm from an external source. Rectify the cause of this
alarm.
A07903 Motor speed deviation
 Increase p2163 or p2166.
 Increase the torque, current and power limits.
A07910 Motor overtemperature
 Check the motor load.
 Check the ambient temperature and the motor ventilation.
 Check the KTY84 sensor.
 Check the overtemperatures of the thermal model (p0626 ... p0628).
A07920
F07923
Torque/speed too low The torque deviates from the torque/speed envelope curve.
 Check the connection between the motor and load.
 Adjust the settings according to the load.
A07921
F07924
Torque/speed too high
A07922 Torque/speed out of tolerance
A07927 DC braking active The alarm disappears after DC braking.
A07980 Rotary measurement activated The alarm disappears after optimization of the speed controller.
A07981 Rotating measurement: No enable
signals
 Acknowledge pending faults.
 Create enable signals which are missing.
A07991 Motor data identification activated The alarm disappears after motor data identification.
A30049 Internal fan defective
 Check the internal fan and replace it, if necessary.
A30502 DC link overvoltage
 Check the device supply voltage (p0210).
 Check the dimensions of the line reactor.
A30920 Temperature sensor fault
 Check that the sensor is correctly connected.
Faults
Number Cause Solution
F01000 Software fault in CU
 Replace the CU.
F01001 FloatingPoint exception
 Switch the CU off and on again.
F01015 Software fault in CU
 Update the firmware
 Contact Technical Support.
 Replace the CU.
F01018 Power-up aborted more than once
1. Switch the module off and on again.
2. After this fault has been output, the module is booted with the factory settings.