What causes IGBT High Temperature in WEG DC Drives?
If your WEG DC drive is showing an IGBT High Temperature alarm (A050), it could be due to several reasons: * The surrounding air temperature is too high (greater than 45 °C or 113 °F). * The output current is too high. * The heatsink fan is blocked or defective. * The inverter heatsink is completely covered with dust. Ensure proper cooling and check for blockages in the heatsink fan.
What causes DB Resistor Overload in WEG CFW-11 DC Drives?
A DB Resistor Overload (F077) in WEG DC Drives can be caused by excessive load inertia or a deceleration time that is too short, excessive motor shaft load, or incorrect settings for parameters P0154 and P0155. Check settings and reduce loads as necessary.
What causes Ground Fault in WEG CFW-11 DC Drives?
A Ground Fault (F074) in WEG DC Drives can be caused by shorted wiring in one or more of the output phases, or motor cable capacitance that is too large, resulting in current peaks at the output. Inspect wiring for shorts and consider using output reactors.
How to troubleshoot Incorrect Encoder/ Motor Wiring in WEG CFW-11?
To troubleshoot an Incorrect Encoder/Motor Wiring fault (F067) in your WEG DC drive, verify and correct the encoder and motor wiring. The output motor cables U, V, W may be inverted, encoder channels A and B may be inverted, or the encoder may not have been properly mounted.
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 |
Overview of HMI keypad functions, display, and parameter access.
Procedures for power, grounding, wiring, fuses, and control connections.
Details on installation, operation, wiring, and technical specifications of the Safety Stop function.
Steps to prepare the inverter before initial power-up.
Steps for initial inverter start-up, including password, oriented start-up, and parameter settings.
How faults and alarms are indicated and handled.
List of faults, alarms, and their likely causes.
Common problems and their corrective actions.
Electrical power specifications of the inverter.
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