How to resolve unstable motor speed on Danfoss Controller?
Unstable motor speed may be caused by incorrect parameter settings. Check settings in parameter group 1-6* Load Depen. Setting. For closed loop operation, check settings in parameter group 20-0* Feedback.
Why is the Danfoss Controller mains current imbalance greater than 3%?
A mains current imbalance greater than 3% in your Danfoss Controller setup can stem from issues with the mains power supply. If the imbalanced leg follows the wire, it suggests a power problem, so check the mains power supply. Alternatively, the frequency converter itself might be faulty. If the imbalance leg remains on the same input terminal, it points to a problem with the unit, and you should contact the supplier.
Why is my Danfoss Media Converter motor not reaching maximum speed?
If the motor isn't reaching its maximum speed, it could be because the frequency limits are set incorrectly; program the correct limits. Also, the reference input signal might not be scaled correctly, so program the correct settings.
What to do if Danfoss DC Drives display over current?
If Danfoss DC Drives display an over current error, it means the inverter peak current limit (approximately 200% of the rated current) has been exceeded. Turn off the frequency converter and check if the motor shaft can be turned and if the motor size matches the frequency converter.
What to do if Danfoss DC Drives experience a mains failure?
If Danfoss DC Drives experience a mains failure, it means the supply voltage to the frequency converter is lost. Possible correction: check the fuses to the frequency converter.
What does Heatsink Temperature Low mean on Danfoss DC Drives?
If Danfoss DC Drives display Heatsink Temperature Low, it means the heat sink temperature is measured as 0 °C. This could indicate that the temperature sensor is defective.
What to do if the Danfoss Controller motor is not running?
If the motor is not running, make sure the motor is connected and check the service switch. If using a 24 V DC option card, apply mains power to run the unit. If the LCP is stopped, press [Auto On] or [Hand On] to start the motor, depending on the operation mode. Ensure a valid start signal is applied and that the motor coast signal is not active by applying 24 V on terminal 27 or programming the terminal to no operation. Finally, verify that the reference signal source is correctly programmed.
Why is the Danfoss Media Converter line power current imbalanced?
A line power current imbalance greater than 3% may be due to a problem with the line power. If the imbalanced leg follows the wire, it is a power problem, so check the line power supply. If the imbalance leg stays on the same input terminal, it is a problem with the unit, and you should contact the supplier.
Why is the Danfoss Media Converter motor current imbalanced?
A motor current imbalance greater than 3% can be caused by a problem with the motor or motor wiring. If the imbalanced leg follows the wire, the problem is in the motor or motor wiring. Check the motor and motor wiring. If the imbalance leg stays on the same output terminal, it indicates a problem with the unit, and you should contact the supplier.
What to do if Danfoss VLT FC 103 DC Drives trip lock?
If a Danfoss DC drive experiences a trip lock, it means an alarm occurred, and the motor has stopped. To resolve this, first, identify and clear the cause of the alarm. Then, reset the drive by: pressing the [Reset] button, using remote control terminals, or via serial communication.
General| Protection Class | IP20 |
|---|---|
| Series | VLT FC 103 |
| Input Voltage | 380-480 V |
| Communication Protocols | CANopen |
| Supply voltage | 380-480 V AC |
| Frequency | 50 Hz or 60 Hz |
| Enclosure | IP20 |
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