Siemens G130 - A07402 (N) Drive: DC link voltage minimum controller active; F07403 (N, A) Drive: Lower DC link voltage threshold reached; F07404 Drive: Upper DC link voltage threshold reached

SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
1545
4 Faults and alarms
4.2 List of faults and alarms
A07402 (N) Drive: DC link voltage minimum controller active
Message value: -
Message class: Application/technological function faulted (17)
Drive object: VECTOR_G
Component: None Propagation: GLOBAL
Reaction: NONE
Acknowledge: NONE
Cause: The DC link voltage controller has been activated as the lower switch-in threshold has been undershot (r1246,
r1286).
The kinetic energy of the motor is used to buffer the DC link. The drive is therefore braked.
See also: r0056 (Status word, closed-loop control), p1240 (Vdc controller or Vdc monitoring configuration), p1280
(Vdc controller or Vdc monitoring configuration (U/f))
Remedy: The alarm disappears when power supply returns.
Reaction upon N: NONE
Acknowl. upon N: NONE
F07403 (N, A) Drive: Lower DC link voltage threshold reached
Message value: -
Message class: Infeed faulted (13)
Drive object: VECTOR_G
Component: None Propagation: GLOBAL
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The DC link voltage monitoring is active (p1240, p1280 = 5, 6) and the lower DC link voltage threshold (r1246, r1286)
was reached in the "Operation" state.
Remedy: - check the line supply voltage.
- check the infeed.
- adapt the device supply voltage (p0210) or the switch-on level (p1245, p1285).
- disable the DC link voltage monitoring (p1240, p1280 = 0).
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F07404 Drive: Upper DC link voltage threshold reached
Message value: -
Message class: DC link overvoltage (4)
Drive object: VECTOR_G
Component: None Propagation: GLOBAL
Reaction: OFF2 (NONE, OFF1, OFF3)
Acknowledge: IMMEDIATELY
Cause: - the DC link voltage monitoring is active (p1240, p1280 = 4, 6) and the upper DC link voltage threshold (r1242,
r1282) was reached in the "Operation" state.
- the monitoring of the DC link voltage p1284 has responded (only U/f control).
Remedy: - check the line supply voltage.
- check the infeed.
- adapt the device supply voltage (p0210).
- if necessary, deactivate the DC link voltage monitoring (p1240, p1280 = 0).
- adapt the monitoring of the DC link voltage (p1284, only U/f).