VLT ® 2000 Series Warning messages I Display messages Messages Caused by Consequence Reset possible CURRENT LIMIT Over load VLT decreases speed - - VOLTAGE HIGH Regenerative motor operation The power section of the VLT - - or supply voltage too high stops within 5 sec. VOLTAGE LOW Missing phase or low supply The power section of the VLT - - stops within 5 sec. INVERT TIME Inverter overload At 98.2% load VLT displays - - the following warning: “INVERTER TIME”. At 100% load: “ALARM OVERLOAD” MOTOR TIME Motor overload VLT operates at least 60 sec.
*) - - VLT operates between 100% and depending on the value of 160% of nominal motor power the load before the power section of the VLT stops LO FRQ WARN Output frequency lower than Depending on application the value in parameter 210 Warning only HI FRQ WARN Output frequency higher than Depending on application - - the value in parameter 211 Warning only HI CUR WARN Motor current higher than Depending on application - - the value in parameter 213 Warning only Section 1 Section 2 Section 3 *) The time is reduced at a higher switch frequency.
I Reset messages Messages Caused by Consequence Reset AUTO START VLT tripped The VLT attempts to restart - - TRIP Fault condition of the VLT The power section Yes or the motor section of the VLT stops TRIP LOCKED Fault condition (over temp., short The power section No, power off circuit, ground fault) of the VLT of the VLT stops required, then reset MG.20.B6.02 – VLT is a registered Danfoss trademark 83