Why will the motor not brake on my Danfoss DC Drives?
If the motor won't brake with your Danfoss DC Drives, it could be due to incorrect settings in the brake parameters or ramp-down times that are too short. Check parameter group 2-0* DC Brake and 3-0* Reference Limits.
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.
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 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 display AMA check Unom and Inom?
If Danfoss DC Drives display AMA check Unom and Inom, it means the setting of motor voltage, motor current, and motor power is presumably wrong. Check the settings.
What causes intermittent display on Danfoss Media Converter?
An intermittent display could be caused by an overloaded power supply (SMPS) due to improper control wiring or a fault within the adjustable frequency drive. If the display stays lit, check the control wiring for shorts or incorrect connections. If the display continues to cut out, follow the procedure for display dark.
Why is the motor not running on my Danfoss VLT FC 103 DC Drives?
If the motor is not running with your Danfoss DC Drives, ensure the service switch is not open and the motor connection is secure. If you have a 24 V DC option card, make sure mains power is applied to run the unit. If LCP Stop is active, press [Auto On] or [Hand On] (depending on the operation mode) to start the motor. Apply a valid start signal. Ensure the motor coast signal is not active by applying 24 V on terminal 27 or program this terminal to No operation. Also, verify the correct reference signal source is programmed and wired correctly.
What does DC under voltage mean in Danfoss DC Drives?
If Danfoss DC Drives show DC under voltage, it means if the intermediate circuit voltage (DC) drops below the “voltage warning low” limit, the frequency converter checks if 24 V backup supply is connected.
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.
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.
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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