To Next PageTo Next PageHow to troubleshoot communication failure in Veichi DC Drives?
To troubleshoot communication failure in Veichi DC Drives, consider the following: the host computer may be malfunctioning; there may be malfunctions in the communication wires; or the FD group of communication parameters may be set incorrectly. To resolve this, check the wiring of the host computer, check the communication wiring, and correctly set the communication parameters.
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.
How to fix output phase loss in Veichi DC Drives?
If you are experiencing output phase loss in Veichi DC Drives, it may be due to: abnormal wiring from the inverter to the motor; unbalanced three-phase output of the inverter when the motor operates; drive board malfunctions; or module malfunctions. To address this: eliminate peripheral errors; inspect the three-phase winding and eliminate errors. For issues with the drive board or modules, 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.
Why Veichi DC Drives modules overheat?
Veichi DC Drives modules may overheat due to: high ambient temperature; clogged vents; broken fans; broken thermistor modules; or a broken inverter module. Solutions include: lowering the ambient temperature; cleaning the vents; replacing the fans; replacing the thermistor modules; or replacing the inverter modules.
What to do if Veichi DC Drives show undervoltage?
If your Veichi DC Drives are showing undervoltage, it could be due to: sudden power outages; the input voltage of the inverter not being within the range of regulation; unusual bus voltage; bride rectifiers and snubber resistor malfunctions; drive board malfunctions; or control board malfunctions. To resolve this: perform a fault reset; adjust the voltage to the normal range. For issues related to bus voltage, bride rectifiers, snubber resistor malfunctions, drive board, or control board malfunctions, contact tech support.
How to prevent motor overload in Veichi DC Drives?
To prevent motor overload in Veichi DC Drives: check if the motor protection parameter F9.01 is appropriately set; the issue could also arise from excessive load or motor stalling, or using an inverter model that is too small. The solutions are: set the parameter correctly; reduce the load and inspect the motor and mechanical conditions; or use an inverter with a higher power level.
What causes inverter overload in Veichi DC Drives?
Inverter overload in Veichi DC Drives may be caused by: excessive load or motor stalling, or the inverter model being too small. To resolve this: reduce the load and inspect the motor and mechanical conditions, or use an inverter with a higher power level.
Why Veichi DC Drives show overvoltage at constant speed?
If Veichi DC Drives display overvoltage at a constant speed, it could be due to: high input voltage, or an external force dragging the motor during deceleration. Corrective actions include: adjusting the voltage to the normal range, and removing the external force or adding braking 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.
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 |
