Carrier 48MPD Installation, Start-up And Service Instructions Manual

Contents

Table 30 — Variable Frequency Drive (VFD) DisplayDISPLAY ACTIONFref Not used.Fout Displays the output frequency at which the VFD is cur-rently operating. This is a display only function. The usercannot change this displayed value.lout Displays the level of output current that the VFD is cur-rently producing. This is a display only function. The usercannot change this displayed value.kWout Displays the output power that the VFD is currently pro-ducing. This is a display only function. The user cannotchange this displayed value.F/R Sets the rotation direction of the motor when a run com-mand is given.Montr Press to access the monitor parametersENTER(U-01 through U-13).Accel Not used.Decel Not used.Vmtr Sets the rated voltage of the motor.V/F Sets a preset V/f pattern or allows a custom V/f patternto be set.Fgain Sets the frequency reference gain for the analog fre-quency reference.Fbias Sets the frequency reference bias for the analog fre-quency reference.FLA Sets the full load amps used for detecting motor over-load. When FLA is set to 0 it is disabled.PID Enables or disables the PID.kWsav Enables or disables the energy saving function.PRGM Allows parameter programming.LEGENDPID — Proportional Integral DerivativeSERVICEService Access — All unit components can be reachedthrough clearly labeled hinged access doors. These doors areequipped with tiebacks, but if heavy duty servicing is needed,it is recommended that the doors be removed or propped open.Each door is held closed with 3 latches. The latches aresecured to the unit with a single 1⁄4 -in. 220 x 1 ⁄2 -in. longbolt. See Fig. 50.To open, loosen the latch bolt using a 7/16-in. wrench.Pivot the latch so it is not in contact with the door. Open thedoor. To shut, reverse the above procedure.NOTE: Disassembly of the top cover may be required underspecial service circumstances. It is very important that theorientation and position of the top cover be marked on theunit prior to disassembly. This will allow proper replace-ment of the top cover onto the unit and prevent rainwaterfrom leaking into the unit.IMPORTANT: After servicing is completed, make suredoor is closed and relatched properly, and that the latchesare tight. Failure to do this can result in water leakageinto the indoor-air section of the unit.PGRMFbiasFrefF/RVmtrFLA PIDV / FMontrFout loutAccelkWoutDecelFgainkWsavDIGITAL OPERATORJVOP-131SEQ REFDSPL ENTERLOCALREMOTEREMOTERUN STOPRESET4-digit, 7-segment LEDdisplay; shows selectedoperation status, fault code,or parameter data.Function LEDsKEYPAD SECTIONDisplays data to bechanged, and enters newdata.*Decrease parameter numberor displayed value.Stop the motor, or reset adrive fault. LED lights whendrive is in stopped condition.REMOTE Mode indication LEDs.The LEDs light when REMOTEMode has been selected.DISPLAY SECTIONSwitch between FunctionLEDs*Increase parameternumber or displayedvalue.Switch between LOCALand REMOTE operationmodes.Run the motor. LED lightswhen drive is controllingmotor speed.*Pressing DSPL and ENTER keys simultaneously allows all parameterdata to be read, but not set, while the drive is running.Fig. 49 — VFD Digital Operator45