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Remedy:
Check the motor feeder cables.
A07350 (F)
Drive: Measuring probe parameterized to a digital output
Reaction:
NONE
Acknowledge:
NONE
Cause:
The measuring probe is connected to a bi-directional digital input/output and the terminal is set as output.
Alarm value (r2124, decimal):
9: DI/DO 9 (X122.8)
10: DI/DO 10 (X122.10)
11: DI/DO 11 (X122.11)
13: DI/DO 13 (X132.8)
14: DI/DO 14 (X132.10)
15: DI/DO 15 (X132.11)
Remedy:
- set the terminal as input (p0728).
- de-select the measuring probe (p0488, p0489, p0580).
Reaction upon F:
OFF1
Acknowledge
IMMEDIATELY
upon F:
A07400 (N)
Drive: DC link voltage maximum controller active
Reaction:
NONE
Acknowledge:
NONE
Cause:
The DC link voltage controller has been activated because the upper switch-in threshold has been exceeded (r1242).
The ramp-down times are automatically increased in order to maintain the DC link voltage (r0026) within the permis-
sible limits. There is a system deviation between the setpoint and actual speeds.
When the DC link voltage controller is switched-out (disabled), this is the reason that the ramp-function generator
output is set to the speed actual value.
See also: p1240
Remedy:
If the controller is not to intervene:
- increase the ramp-down times.
If the ramp-down times are not to be changed:
- use a chopper or regenerative feedback unit
Reaction upon N:
NONE
Acknowledge
NONE
upon N:
A07401 (N)
Drive: DC link voltage maximum controller deactivated
Reaction:
NONE
Acknowledge:
NONE
Cause:
The Vdc_max controller can no longer maintain the DC link voltage (r0026) below the limit value (r1242) and was
therefore switched-out (disabled).
- the line supply voltage is permanently higher than specified for the power module.
- the motor is permanently in the regenerative mode as a result of a load that is driving the motor.
Remedy:
- check whether the input voltage is within the permissible range.
- check whether the load duty cycle and load limits are within the permissible limits.
Reaction upon N:
NONE
Acknowledge
NONE
upon N:
A07402 (N)
Drive: DC link voltage minimum controller active
Reaction:
NONE
Acknowledge:
NONE
Cause:
The DC link voltage controller has been activated as the lower switch-in threshold has been fallen below (r1246).
The kinetic energy of the motor is used in order to buffer the DC link. This brakes the drive.
See also: p1240
Remedy:
The alarm disappears when power supply returns.
Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
Faults and Alarms
List of faults and alarms
3-561
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