Service service access – Carrier 50MP62L-10R User Manual

Page 45

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Table 30 — Variable Frequency Drive (VFD) Display

DISPLAY

ACTION

Fref

Not used.

Fout

Displays the output frequency at which the VFD is cur-
rently operating. This is a display only function. The user
cannot 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 user
cannot change this displayed value.

kWout

Displays the output power that the VFD is currently pro-
ducing. This is a display only function. The user cannot
change 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 parameters

ENTER

(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 pattern
to 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.

LEGEND

PID — Proportional Integral Derivative

SERVICE

Service Access —

All unit components can be reached

through clearly labeled hinged access doors. These doors are
equipped 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 are

secured to the unit with a single

1

4

-in.

Ϫ20 x

1

2

-in. long

bolt. 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 the
door. To shut, reverse the above procedure.

NOTE: Disassembly of the top cover may be required under
special service circumstances. It is very important that the
orientation and position of the top cover be marked on the
unit prior to disassembly. This will allow proper replace-
ment of the top cover onto the unit and prevent rainwater
from leaking into the unit.

IMPORTANT: After servicing is completed, make sure
door is closed and relatched properly, and that the latches
are tight. Failure to do this can result in water leakage
into the indoor-air section of the unit.

PGRM

Fbias

Fref

F/R

Vmtr

FLA

PID

V / F

Montr

Fout

lout

Accel

kWout

Decel

Fgain

kWsav

DIGITAL OPERATOR
JVOP-131

SEQ

REF

DSPL

ENTER

LOCAL

REMOTE

REMOTE

RUN

STOP

RESET

4-digit, 7-segment LED
display; shows selected
operation status, fault code,
or parameter data.

Function LEDs

KEYPAD SECTION

Displays data to be
changed, and enters new
data.*

Decrease parameter number
or displayed value.

Stop the motor, or reset a
drive fault. LED lights when
drive is in stopped condition.

REMOTE Mode indication LEDs.
The LEDs light when REMOTE
Mode has been selected.

DISPLAY SECTION

Switch between Function
LEDs*

Increase parameter
number or displayed
value.

Switch between LOCAL
and REMOTE operation
modes.

Run the motor. LED lights
when drive is controlling
motor speed.

*Pressing DSPL and ENTER keys simultaneously allows all parameter
data to be read, but not set, while the drive is running.

Fig. 49 — VFD Digital Operator

45

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