Inovance 74-3 fault code meaning
Inovance / 74-3
Series: MD580S
Continuous brake application timeout.
AC drive
Meaning:
Possible causes
- 1 . Detection mechanism: Continuous braking time exceeds the time set in [A5-53]. 2 . Braking activation threshold [A5-31] is set too low. 3 . Braking stop hysteresis voltage [A5-32] is set too high. 4 . The selected brake is undersized, and the load energy is too large. 5 . [A5-53] is set incorrectly. 6 . DC bus voltage has not been calibrated, resulting in excessive deviation from the actual DC bus voltage. 7 . Other causes.
Source: MD580S Series Low-Voltage High-Performance Engineered AC Drive Function Manual P443
Series: MD880
Braking IGBT-Vce fault
AC drive
Meaning:
Possible causes
- Braking IGBT damaged or braking resistor short circuit.
- Other causes.
Source: MD880 Series AC Drive Function Manual (HCU) P634