Why is the Danfoss Controller motor not reaching maximum speed?
If the motor is not reaching maximum speed, it could be because the frequency limits are set wrong, so program the correct limits. Another possibility is that the reference input signal is not scaled correctly, so program the correct settings.
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.
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 Danfoss Controller display showing intermittently?
An intermittent display on your Danfoss Controller 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 wiring for shorts or incorrect connections. If the display continues to cut out, follow the procedure for a dark display.
Why is the Danfoss Controller motor running in the wrong direction?
If the motor is running in the wrong direction, it could be due to a motor rotation limit, so program the correct settings. An active reversing signal could also be the cause, so deactivate the reversing signal. Another potential cause is wrong motor phase connection.
What to do if the Danfoss Controller has open power fuses or circuit breaker trip?
If you have open power fuses or a tripped circuit breaker, it could be due to a phase-to-phase short, so eliminate any shorts detected. It may also be caused by motor overload, so perform a startup test and verify the motor current is within specifications. If the motor current exceeds the nameplate full load current, reduce the load. Check for and tighten any loose connections.
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.
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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