What to do if the Danfoss Controller shows an overcurrent error?
If the Danfoss Controller displays an overcurrent error, it means the inverter peak current limit has been exceeded. For J1–J6 units, if this happens when powering up, verify that the power cables are correctly connected to the motor terminals.
What does 'No motor' mean on my Danfoss Controller?
If the Danfoss Controller indicates 'No motor', it means that no motor has been connected to the output of the frequency converter, or one motor phase is missing.
How to fix a Danfoss VLT AutomationDrive FC 360 DC Drives motor that is not running?
If the motor is not running, there might be several causes. First, check if the LCP stop is active and press [Auto On] or [Hand On] to run the motor. Second, ensure a valid start signal is applied. Third, verify that the motor coast signal is not active by applying 24 V on terminal 27 or programming this terminal to No operation. Finally, confirm that the reference signal source is correctly programmed, the wiring is correct, the terminals are scaled properly, and the reference signal is valid.
What to do if Danfoss DC Drives power fuses open or circuit breaker trips?
If the power fuses open or the circuit breaker trips, it could be due to a phase-to-phase short, motor overload, or loose connections. Eliminate any shorts detected. Review the specifications for the application to address potential motor overload. Ensure all connections are tightened.
Why is my Danfoss DC Drives motor running in the wrong direction?
If your motor is running in the wrong direction, it may be due to a motor rotation limit, an active reversing signal, or wrong motor phase connection. Program the correct settings for the motor rotation limit. Deactivate any active reversing signals. Change parameter 1-06 Clockwise Direction if the motor phase connection is incorrect.
What to do if motor current imbalance is greater than 3% in Danfoss VLT AutomationDrive FC 360?
If the motor current imbalance is greater than 3%, there could be a problem with the motor or its wiring, or with the frequency converter unit itself. Check the motor and its wiring to ensure they are in good condition. If the imbalanced leg stays on the same output terminal, it indicates a problem with the unit, and you should contact the supplier.
How to troubleshoot a Danfoss DC Drives motor not reaching maximum speed?
If the motor is not reaching maximum speed, it could be due to incorrectly set frequency limits or a reference input signal that is not scaled correctly. Program the correct limits for the frequency. Also, program correct settings for the reference input signal.
Why is there a mains current imbalance greater than 3% in my Danfoss DC Drives?
A mains current imbalance greater than 3% can be caused by a problem with the mains power supply or the frequency converter unit. If the imbalanced leg follows the wire, it indicates a power problem, so check the mains supply. If the imbalanced leg stays on the same input terminal, it suggests an issue with the unit, and you should contact the supplier.
What to do if Danfoss VLT AutomationDrive FC 360 motor does not brake?
If the motor does not brake, it may 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 is the motor speed unstable in my Danfoss VLT AutomationDrive FC 360 DC Drives?
If the motor speed is unstable, it may be due to incorrect parameter settings. Check the settings in parameter group 6- ** Analog I/O mode.
General| Category | DC Drives |
|---|---|
| Output Voltage | 0 to Input Voltage |
| Control Method | V/f, Vector Control |
| Communication Protocols | Modbus RTU |
| Enclosure Rating | IP20 |
| Brake chopper | Built-in |
| EMC | Compliant with EN 61800-3 |
| Protection Features | Overcurrent, overvoltage, undervoltage, short circuit, overtemperature |
| Ambient Temperature | -10 to +50 °C |
| Storage Temperature | -25 to +70 °C |
| Relative Humidity | 5 - 95% non-condensing |
| Altitude | Up to 1000 m |
| Input Voltage | 380 to 480 V |
Explanation of symbols used in the document to indicate hazards.
Defines the requirements for personnel authorized to install and operate.
Important warnings and precautions for safe handling and operation.
Essential guidelines for safe and compliant electrical installation work.
Critical requirements for proper grounding to ensure safety.
Specific safety instructions related to commissioning the frequency converter.
Explanation of warning, alarm, and trip conditions and how to reset.
List of warning and alarm codes, their causes, and trip lock conditions.
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