How to troubleshoot Imbalance or Input Phase Loss in WEG DC Drives?
To troubleshoot an Imbalance or Input Phase Loss (F006) in your WEG DC drive, check for a missing phase at the inverter's input power supply or an input voltage imbalance greater than 5%. Ensure all phases are connected and check the mains voltage imbalance.
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.
What causes the A010 Rectifier High Temperature alarm on a WEG Inverter?
The WEG Inverter shows a rectifier high temperature alarm because a high temperature was detected by the NTC temperature sensors located in the rectifier modules. This can be caused by a surrounding air temperature that is too high (>50 °C (122 °F)) and an output current that is too high, a blocked or defective fan, or an inverter heatsink that is completely covered with dust.
What does the A165 Break Detect AI3 alarm mean on my WEG Inverter?
The WEG Inverter shows that the AI3 current (4-20 mA or 20-4 mA) reference is out of the 4 to 20 mA range. This can be caused by a broken AI3 cable or bad contact at the signal connection to the terminal strip.
What causes the F030 Power Module U Fault on a WEG Inverter?
The WEG Inverter shows a desaturation of IGBT occurred in power module U. This is caused by a short-circuit between motor phases U and V or U and W.
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.
Why does my WEG Inverter display an F048 IGBT Overload Fault?
The WEG Inverter indicates an IGBT overload fault because the inverter output current is too high.
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.
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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