What to do when Veichi DC Drives reach the set total power-on time?
When Veichi DC Drives reach the set total power-on time, because the accumulated power-on time (F8.13) reaches the set value (F4.16), clear the records using the initiation of parameters.
Why Veichi DC Drives show overcurrent at constant speed?
If your Veichi DC Drives are showing overcurrent at a constant speed, the causes might be: a grounded or shorted inverter output circuit; vector control mode without parameter identification; low voltage; a sudden load added during operation; an undersized inverter model; or a shorted braking resistor. Here’s how to address it: eliminate the peripheral failure; initiate motor parameter identification; adjust the voltage to the normal range; choose rotational speed tracking start or start it after the motor stops; cancel the sudden load addition; use an inverter with a higher power level; and check the braking resistance.
How to troubleshoot overvoltage during deceleration in Veichi DC Drives?
To troubleshoot overvoltage during deceleration in Veichi DC Drives, consider these points. This issue may arise due to: high input voltage; an external force dragging the motor; short deceleration time; or missing braking units or resistors. Resolve the problem by: adjusting the voltage to the normal range; removing any external forces or adding braking resistors; increasing the deceleration time; and installing braking units and resistors.
What causes overvoltage during acceleration in Veichi DC Drives?
Overvoltage during acceleration in Veichi DC Drives can stem from several causes: the input voltage being too high, an external force dragging the motor during acceleration, the acceleration time being too short, or the absence of braking units or braking resistors. You can address this by: adjusting the voltage to the normal range; removing the external force or adding braking resistors; increasing the acceleration time; and adding braking units and braking resistors.
What causes offload errors in Veichi DC Drives?
Offload errors in Veichi DC Drives occur when the operation current of the inverter is smaller than F9.64. To resolve this, confirm the removal of load or check if the parameter settings of F9.64 and F9.65 match the real situation.
How to fix overcurrent during acceleration in Veichi DC Drives?
If you are experiencing overcurrent during acceleration with your Veichi DC Drives, the possible causes are: the inverter’s output circuit is grounded or shorted; the control mode is vector and no parameters identification was done; the acceleration time is too short; the voltage is too low; initiating a start on the motor while it is still running; a sudden load added while accelerating; the model of inverter is too small; the braking resistor is short. To resolve this, you can: eliminate the peripheral failure; initiate the identification of motor parameters; increase acceleration time; adjust the voltage to the normal range; choose rotational speed tracking start or start it after the motor stops; cancel the sudden load addition; use the inverter that has a higher power level; check if ...
What causes large speed deviation in Veichi DC Drives?
Large speed deviation in Veichi DC Drives can be caused by: incorrectly set encoder parameters; the motor auto-tuning not being activated; or incorrect settings for F9-69 and F9-70. To resolve this: set the encoder parameters properly; perform the motor auto-tuning; or set F9.69 and F9.70 correctly based on the actual situation.
What to do in case of external equipment fault in Veichi DC Drives?
If you encounter an external equipment fault in Veichi DC Drives, where the external fault signal is input via Terminal X or virtual I/O, reset the operation.
What to do if Veichi DC Drives show input phase loss?
If Veichi DC Drives show an input phase loss, it could be due to: abnormal three-phase input power; drive board malfunctions; lightening protection board malfunctions; or main control board malfunctions. Suggested actions are: check and eliminate problems in the peripheral circuit. For issues with the drive board, lightening protection board, or main control board, contact tech support.
What causes power supply failure in Veichi DC Drives?
Power supply failure in Veichi DC Drives is caused by the input voltage not being within the range of regulation. To fix this, adjust the input voltage to the range of regulation.
General| Input Voltage | 3-phase 380V AC ±15% |
|---|---|
| Output Voltage | 0~Rated Input Voltage |
| Control Mode | V/F control, sensorless vector control, closed-loop vector control |
| Protection | Overcurrent, overvoltage, overheat, short circuit, phase loss |
| Communication | RS485, Modbus |
| Operating Temperature | -10°C to +50°C |
| Storage Temperature | -20°C to 60°C |
| Altitude | ≤1000m (above 1000m, derating required) |
| Frequency Range | 0-400Hz |
| Overload Capacity | 150% for 60 seconds |
| Humidity | Less than 95%RH, no condensation |
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