What causes an external fan fault on Danfoss DC Drives?
If you are experiencing an external fan fault with your Danfoss DC Drives, the fan warning function checks if the fan is running/mounted. Check for proper fan operation. Cycle power to the frequency converter and check that the fan operates briefly at start-up. Also, check the sensors on the heat sink.
What causes line power current imbalance greater than 3% in Danfoss DC Drives?
If you notice a line power current imbalance greater than 3% in your Danfoss DC Drives, it could be a problem with the line power supply itself. Check the line power supply. If the imbalance remains on the same input terminal, there may be a problem with the unit, and you should contact the supplier.
Why Danfoss DC Drives power on with red light?
If your Danfoss DC Drives show 'Power On' and the indicator is red, this typically indicates an IP Address Conflict. Resolve the IP conflict.
What to do if Danfoss DC Drives display Live Zero Error?
The 'Live Zero Error' warning or alarm on your Danfoss DC Drives appears if programmed in parameter 6-01 Live Zero Timeout Function and the signal on one of the analog inputs is less than 50% of the minimum value programmed for that input. Check the connections on all analog mains terminals. Also, check control card terminals 53 and 54 for signals, using terminal 55 as common. Ensure that the drive programming and switch settings match the analog signal type.
What does it mean if the brake check failed on Danfoss VLT HVAC Drive FC 102?
If the brake check failed on your Danfoss DC Drives, it means the brake resistor is not connected or not working. Check parameter 2-15 Brake Check.
What to do if Danfoss VLT HVAC Drive FC 102 show External error DI1?
If your Danfoss DC drive is showing 'External error DI1', it could be due to a safety input connected to DI1 having an illegal signal level, or the sensor might be broken. You can resolve this by checking that the configuration of DI1 (parameter 42-21 Type, sub-index [0]) is set correctly and that the connected sensor is installed according to specification. Additionally, you can extend the discrepancy time for DI1 using the VLT® Motion Control Tool MCT 10 Safe Plug-in.
What to do if Danfoss VLT HVAC Drive FC 102 DC Drives show an earth fault?
If your Danfoss DC Drives indicates an earth fault, it means there's current leaking from the output phases to ground, either in the cable between the frequency converter and the motor, or within the motor itself. The solution is to remove power to the frequency converter and repair the earth fault.
What to do for option detection issues in Danfoss VLT HVAC Drive FC 102?
If your Danfoss DC Drives detects a change in the option layout, enable option layout changes to apply the change.
How to fix a short circuit in Danfoss VLT HVAC Drive FC 102 DC Drives?
If your Danfoss DC Drives indicate a short circuit, it means there is short-circuiting in the motor or motor wiring. Remove the power to the frequency converter and repair the short circuit.
What to do if Danfoss DC Drives show an over current error?
If you are experiencing an over current error with your Danfoss DC Drives, it might be due to shock loading or quick acceleration with high-inertia loads. First, remove the power and check if the motor shaft can be turned. Also, verify that the motor size matches the frequency converter and that the motor data is correctly set in parameters 1-20 to 1-25.
General| Enclosure | IP20, IP21, IP55 |
|---|---|
| Ambient Temperature Range | -10°C to +40°C |
| Storage Temperature Range | -25°C to +70°C |
| Relative Humidity | 5-95% (non-condensing) |
| Communication Protocols | Modbus RTU, BACnet, Profibus |
| Certifications | CE, UL, cUL |
| Control Principle | PWM |
| Cooling Method | Forced air cooling |
| Input Voltage | 200-240V, 380-480V, 525-600V |
| Control Modes | sensorless vector control, closed loop vector control |
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