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Sandra MullenAug 30, 2025
How to troubleshoot 10 Volts low on Danfoss DC Drives?
- TTim HerringAug 30, 2025
If the control card voltage is below 10 V from terminal 50, remove some of the load from terminal 50, as the 10 V supply is overloaded.
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How to troubleshoot 10 Volts low on Danfoss DC Drives?
If the control card voltage is below 10 V from terminal 50, remove some of the load from terminal 50, as the 10 V supply is overloaded.
What to do if Danfoss DC Drives report motor phase W missing?
If motor phase W between the frequency converter and the motor is missing, remove power from the frequency converter and check motor phase W.
What to do if Danfoss VLT DC Drives report motor phase V missing?
If motor phase V between the frequency converter and the motor is missing, remove power from the frequency converter and check motor phase V.
What does 'broken belt' mean on Danfoss VLT?
If torque is below the torque level set for no load, indicating a broken belt, troubleshoot the system and reset the frequency converter after the fault has been cleared.
What does 'missing motor' mean on Danfoss DC Drives?
If an under-load condition was detected, inspect the system for proper operation.
What does 'AMA interrupted by user' mean on Danfoss VLT?
If the AMA has been interrupted by the user, restart AMA after ensuring conditions are safe.
What causes DC under voltage in Danfoss VLT DC Drives and how to fix it?
If the intermediate circuit voltage (DC) drops below the under voltage limit, check that the supply voltage matches the frequency converter voltage.
How to resolve over current in Danfoss VLT?
If the inverter peak current limit is exceeded, check the load connected to the frequency converter and ensure it is within limits.
What to do if Danfoss DC Drives show earth (ground) fault?
If there is current from the output phases to earth, either in the cable between the frequency converter and the motor or in the motor itself, remove power to the frequency converter and repair the earth fault.
How to troubleshoot DC overvoltage in Danfoss VLT DC Drives?
If the intermediate circuit voltage exceeds the limit, connect a brake resistor.
General| Frequency | 50/60 Hz |
|---|---|
| Enclosure | IP20, IP21, IP55, IP66 |
| Series | VLT |
| Control Technique | Flux Vector Control |
| Output Voltage | 0-Vinput |
| Control Method | Fieldbus |
| Communication Interface | PROFIBUS, CANopen |
| Protection Features | Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault |
| Cooling Method | Liquid Cooled |
| Storage Temperature | -25°C to +70°C |
| Relative Humidity | 5-95% non-condensing |
| Altitude | Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating |
| Operating Temperature | -10°C to +50°C (14°F to 122°F) |
Warning about dangers of high voltage during operation and installation.
General safety instructions for operating the adjustable frequency drive.
Procedures to follow before starting any repair or maintenance work.
Precautions to prevent accidental motor startup during operation or setup.
Information on the Safe Stop function and its compliance with safety categories.
Crucial safety precautions for mechanical installation procedures.
Instructions for connecting the electrical components of the drive.
Information on selecting and using fuses for circuit protection.
Procedure to test motor connection and verify rotation direction.
Steps and methods for programming the drive's various functions.
How alarms and warnings are signaled, their causes, and reset procedures.
Detailed list of fault messages, their meanings, and corrective actions.
