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.
How to reduce acoustic noise or vibration in Danfoss DC Drives?
Acoustic noise or vibration can be caused by resonances in the motor/fan system. Check if noise and/or vibration have been reduced to an acceptable limit. Also, turn off overmodulation in parameter 14-03 Overmodulation. Increase resonance damping in parameter 1-64 Resonance Dampening.
What to do if there is a mains phase loss in Danfoss DC Drives?
If you're experiencing a mains phase loss with your Danfoss DC Drives, it's likely due to a missing phase on the supply side or a voltage imbalance that's too high. To resolve this, check the supply voltage to ensure all phases are correctly connected and balanced.
What causes short circuit in Danfoss VLT AutomationDrive FC 360 DC Drives?
A short circuit error in Danfoss DC Drives usually means there's a short-circuit either in the motor itself or on the motor terminals.
What does DC over voltage mean in Danfoss DC Drives?
A DC over voltage error in Danfoss DC Drives indicates that the intermediate circuit voltage has exceeded its limit.
What does DC under voltage mean for Danfoss VLT AutomationDrive FC 360?
A DC under voltage error in Danfoss DC Drives means that the intermediate circuit voltage has dropped below the 'voltage warning low' limit.
What to do if Danfoss VLT AutomationDrive FC 360 DC Drives show brake overload?
If your Danfoss DC Drives indicate a brake overload, it means the power transmitted to the brake resistor over the last 120 seconds has exceeded the limit. You might correct this by decreasing brake energy, which could involve lowering the speed or increasing the ramp time.
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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