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.
What to do if Danfoss VLT DC Drives report heatsink temp issue?
If the maximum temperature of the heatsink has been exceeded, check for high ambient temperature or blocked airflow.
What to do if Danfoss VLT display control word timeout?
If there is no communication to the frequency converter, check connections on the serial communication cable.
What to do if Danfoss DC Drives report motor phase U missing?
If motor phase U between the frequency converter and the motor is missing, remove power from the frequency converter and check motor phase U.
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 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.
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 VLT DC Drives indicate an internal fault?
If an internal fault occurs, indicated by a code number, cycle power to the frequency converter.
What to do if Danfoss VLT show mains failure?
If the supply voltage to the frequency converter is lost, check the fuses to the frequency converter and the mains power supply.
Why Danfoss DC Drives show torque limit?
If the torque has exceeded the value in 4-16 Torque Limit Motor Mode or the value in 4-17 Torque Limit Generator Mode, and the motor torque limit is exceeded during ramp up, extend the ramp up time.
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.
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) |
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