Siemens SINAMICS S210 - Drive: DC Link Voltage Maximum Controller Active; Drive: DC Link Voltage Minimum Controller Active; F07403 (N, A) Drive: Lower DC Link Voltage Threshold Reached

A07400 (N) Drive: DC link voltage maximum controller active
Message value: -
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The DC link voltage controller has been activated because of the upper switch-in threshold (p1244).
A system deviation can occur between the setpoint and actual speed.
Remedy: Not necessary.
This alarm is automatically withdrawn after the upper threshold has been distinctly exceeded.
Otherwise, apply the following measures:
- use a Braking Module or regenerative feedback unit.
- increase the ramp-down times (p1121, p1135).
- shut down the Vdc_max controller (p1240 = 0).
Reaction upon N: NONE
Acknowl. upon N: NONE
A07402 (N) Drive: DC link voltage minimum controller active
Message value: -
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The DC link voltage controller has been activated due to the lower switch-in threshold (p1248).
A system deviation can occur between the setpoint and actual speed.
A possible cause can be e.g. that the line supply has failed.
Remedy: Not necessary.
This alarm is automatically withdrawn after the lower threshold has been distinctly exceeded.
Otherwise, apply the following measures:
- check the line supply and infeed.
- increase the ramp-up times (p1120).
- shut down the Vdc_min controller (p1240 = 0).
Reaction upon N: NONE
Acknowl. upon N: NONE
F07403 (N, A) Drive: Lower DC link voltage threshold reached
Message value: -
Drive object: All objects
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The DC link voltage monitoring is active (p1240 = 5, 6) and the lower DC link voltage threshold (p1248) was reached in
the "Operation" state.
Remedy: - check the line supply voltage.
- check the infeed.
- reduce the lower DC link threshold (p1248).
- switch out (disable) the DC link voltage monitoring (p1240 = 0).
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
Faults and alarms
13.2 List of faults and alarms
SINAMICS S210 servo drive system
438 Operating Instructions, 12/2017, A5E41702836B AA