Why is the stop delayed warning appearing on my Danfoss DC Drives?
Stopping the motor has been delayed due to short cycle protection. Troubleshoot the system and reset the adjustable frequency drive after the fault has been cleared.
Why does my Danfoss vlt FC 102 show a mains phase loss warning/alarm?
A phase might be missing on the supply side, or the line voltage imbalance could be too high. This message can also indicate a fault in the input rectifier on the adjustable frequency drive. Check the fuses to the frequency converter and the mains supply to the unit.
Why am I getting a motor overload temperature warning/alarm on my Danfoss vlt FC 102 DC Drives?
The fault occurs when the motor runs with more than 100% overload for an extended period. Check for motor overheating.
What causes a brake resistor short circuit warning on Danfoss DC Drives and how to fix it?
If a short circuit occurs, the brake function is disabled, and the warning appears. Remove power to the adjustable frequency drive and replace the brake resistor.
What causes an inverter overload warning/alarm on my Danfoss DC Drives?
The frequency converter has been running with more than 100% overload for too long. Compare the output current shown on the LCP with the frequency converter rated current.
How to fix an earth (ground) fault alarm on Danfoss vlt FC 102 DC Drives?
There is current from the output phases to ground, either in the cable between the adjustable frequency drive and the motor, or in the motor itself. Remove power to the adjustable frequency drive and repair the ground fault.
What causes an external fan fault warning on Danfoss vlt FC 102?
The fan warning function is an extra protective function that checks if the fan is running/mounted. Check for proper fan operation.
What to do if I get a clock fault warning on my Danfoss vlt FC 102?
Time is not set or the RTC clock has failed. Reset the clock in 0-70 Date and Time.
What causes a low DC link voltage warning on Danfoss DC Drives?
The intermediate circuit voltage (DC) is lower than the low voltage warning limit. Check that the supply voltage matches the frequency converter voltage.
Why is the DC link voltage high on my Danfoss vlt FC 102 and what should I do?
The intermediate circuit voltage (DC) is higher than the high voltage warning limit. Connect a brake resistor.
General| Category | DC Drives |
|---|---|
| Model | Danfoss VLT FC 102 |
| Output voltage range | 0 to rated motor voltage |
| Power range | 0.37 kW to 200 kW |
| Communication interfaces | RS-485 |
| Protection features | Overvoltage, undervoltage, overcurrent, short circuit, earth fault, overtemperature, motor thermal protection |
| Cooling method | Air-cooled |
| Enclosure rating | IP20, IP21, IP55 (depending on model) |
| Approvals | CE, UL, cUL |
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