What causes Motor Overtemperature in WEG DC Drives?
Motor Overtemperature (F078) in WEG DC Drives can be caused by: * Excessive load at the motor shaft. * Excessive duty cycle (too many starts / stops per minute). * High surrounding air temperature. * Loose connection or short-circuit in the wiring connected to the motor termistor. Ensure low loads and verify motor termistor installation to address this issue.
What causes A128 Timeout for Serial Communication in WEG DC Drives?
A Timeout for Serial Communication (A128) in WEG DC Drives suggests you check the wiring and grounding installation. Ensure proper wiring and grounding for communication.
What causes High Load on Motor in WEG DC Drives and how to solve it?
A high load on the motor (A046) in WEG DC drives can occur if the settings of P0156, P0157, and P0158 are too low for the used motor, or if the motor shaft load is excessive. To solve this, adjust settings P0156, P0157, and P0158 as required.
Why is my WEG Inverter showing an F078 Motor Overtemperature fault?
The motor is overheating, which is related to the PTC temperature sensor installed in the motor. This can be caused by excessive load at the motor shaft, excessive duty cycle (too many starts/stops per minute), high surrounding air temperature, loose connection or short-circuit (resistance < 100 ?) in the wiring connected to the motor termistor, the motor termistor not being installed, or a blocked motor shaft.
What causes a DC Link Overvoltage (F022) fault on a WEG Inverter?
The WEG Inverter shows a DC Link overvoltage condition. This can be due to the input voltage being too high, exceeding permitted values (Ud > 400 V for 220/230 V input models or Ud > 800 V for 380/480 V input models). It can also be caused by high load inertia, short deceleration time, or incorrect settings for parameters P0151, P0153, or P0185.
What does the F076 Motor Current Imbalance fault mean on my WEG Inverter?
The WEG Inverter displays a motor current imbalance due to a fault. This can be caused by a loose connection or broken wiring between the motor and inverter connection, vector control with wrong orientation, or vector control with encoder, encoder wiring or encoder motor connection inverted.
What to do if WEG CFW-11 DC Drives show IGBT Overload Alarm?
If you receive an IGBT Overload Alarm (A047) on your WEG DC drive, it signifies high current at the inverter output. Consider the values in tables 8.1 to 8.5 according to the used switching frequency. Reduce the load or adjust settings based on specified tables.
What to do if WEG CFW-11 show IGBT Overload Fault?
If your WEG DC drive displays an IGBT Overload Fault (F048), it indicates high current at the inverter output. Consider the values in tables 8.1 to 8.5 according to the used switching frequency. Reduce the load or adjust settings based on specified tables to resolve this issue.
What does the F074 Ground Fault error mean on my WEG Inverter?
The WEG Inverter has detected a ground fault, which occurred either in the cable between the inverter and the motor or in the motor itself. This could be due to shorted wiring in one or more of the output phases or motor cable capacitance being too large, resulting in current peaks at the output.
What does the F070 Overcurrent/Short-circuit fault mean on my WEG Inverter?
The WEG Inverter has detected an overcurrent or short-circuit at the output, in the DC Link, or at the braking resistor. This can be due to a short-circuit between two motor phases, a short-circuit between the connection cables of the dynamic braking resistor, or shorted IGBT modules.
General| Category | DC Drives |
|---|---|
| Model | CFW-11 |
| Power Range | 1.1-560 kW (1.5-750 hp) |
| Overload Capacity | 150% for 60 seconds |
| Braking | dynamic braking (optional) |
| Communication | Modbus RTU |
| Enclosure | IP20 |
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