Siemens A07402 fault code meaning
Siemens / A07402
Series: G110M
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller has been activated because the voltage has fallen below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus. This brakes the drive. See: r0056 (Closed-loop control status word), p1240 (Vdc controller configuration (vector control)), p1280 (Vdc control or Vdc monitoring configuration (V/f))
Possible causes
Source: SINAMICS G110M P707
Series: G115D
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller has been activated because the voltage fell below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus. This brakes the drive. See also: r0056 (Closed-loop control status word), p1240 (Vdc controller configuration (vector control)), p1280 (Vdc control or Vdc monitoring configuration (V/f)).
Possible causes
Source: SINAMICS G115D P765
Series: G120-CU240B-E-2, G120C
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller has been activated because the voltage fell below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus. This brakes the drive. See also: r0056 (Closed-loop control status word), p1240 (Vdc Controller configuration (vector control)), p1280 (Vdc Controller configuration (V/f))
Possible causes
Source: SINAMICS G120 Control Unit CU240B- 2_CU240E- 2 P842; SINAMICS G120C P681
Series: G120-CU250S-2
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller has been activated because the voltage has fallen below the lower switch-on threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus voltage, causing the drive to brake. See: r0056 (Closed-loop control status word), p1240 (Vdc controller configuration (vector control)), p1280 (Vdc controller configuration (V/f))
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P971
Series: G120X
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller is activated because the voltage has fallen below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus voltage. This brakes the drive. See also: r0056, p1240, p1280
Possible causes
Source: SINAMICS G120X Converter P1379
Series: G120XA
Drive: Minimum DC bus voltage controller active
converter
Meaning:
Possible causes
Source: SINAMICS G120XA PN converter P1289
Series: G130-G150, S120-S150
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller has been activated because the voltage has fallen below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to support the DC bus, thereby braking the drive. See also: r0056 (Closed-loop control status word), p1240 (Vdc control or Vdc monitoring configuration), p1280 (Vdc control or Vdc monitoring configuration (V/f))
Possible causes
Source: SINAMICS G130_G150 P1609;SINAMICS S120_S150 P2745
Series: G200, G210, G210X, G220, S220
Drive: Minimum DC bus voltage controller active
converter
Meaning: The DC bus voltage controller was activated because the voltage fell below the lower activation threshold (r1246, r1286). The motor's kinetic energy is used to sustain the DC bus. This brakes the drive. See also: r0056 (closed-loop control status word), p1240 (Vdc control or Vdc monitoring configuration), p1280 (Vdc control or Vdc monitoring configuration (V/f))
Possible causes
Source: SINAMICS G200 Converter P709; SINAMICS G210 Converter P1107; SINAMICS G210X Converter P968; SINAMICS G220 Converter P1324; SINAMICS S220 Converter P2280
Series: S110
Drive: Minimum DC bus voltage controller active
servo drive
Meaning: The DC bus voltage controller was activated because the voltage fell below the lower activation threshold (p1248). This results in a control deviation between the reference speed and the actual speed. This may be caused by a fault in the power supply system. See: r0056 (Closed-loop control status word), p1240 (Vdc control or Vdc monitoring configuration), p1248 (DC bus voltage lower limit).
Possible causes
Source: SINAMICS S110 P1011