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.
Why does the motor run rough on my Danfoss DC Drives?
If the motor runs rough with your Danfoss DC Drives, it may be caused by over-magnetization. Check motor settings in parameter groups 1-2* Motor Data, 1-3* Adv Motor Data, and 1-5* Load Indep. Setting.
What causes unstable motor speed in Danfoss VLT FC 103?
If the motor speed is unstable with your Danfoss DC Drives, it may be due to incorrect parameter settings. Check settings in parameter group 1-6* Analog I/O mode. For closed loop operation, check settings in parameter group 20-0* Feedback.
Why isn't the motor reaching maximum speed on Danfoss VLT FC 103 DC Drives?
If the motor isn't reaching its maximum speed with your Danfoss DC Drives, it could be due to incorrectly set frequency limits. Program the correct limits. Alternatively, the reference input signal may not be scaled correctly; program the correct settings.
Why is the display intermittent on my Danfoss VLT FC 103 DC Drives?
An intermittent display on your Danfoss DC Drives may be due to an overloaded power supply (SMPS) caused by improper control wiring or a fault within the frequency converter. 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 a dark display.
What causes mains current imbalance in Danfoss DC Drives?
If the mains current imbalance is greater than 3% in your Danfoss DC Drives, it could be a problem with the mains power supply. Check the mains power supply. If the imbalanced leg follows the wire, it is a power problem. If the issue persists, contact the supplier.
How to correct motor direction on Danfoss VLT FC 103?
If the motor is running in the wrong direction with your Danfoss DC Drives, it could be due to the motor rotation limit being incorrectly set. Program the correct settings. Another cause might be an active reversing signal; deactivate it. Finally, check the motor phase connection.
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.
Why Danfoss DC Drives show Internal fans error?
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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