Specifications

76
6. Verify the conduit for the power wiring in securely con-
nected to the VFD flanged cover and runs continuously to
the branch protection.
7. Verify that the incoming and outgoing wires have been
properly connected inside of the line reactor enclosure if a
separate line reactor has been added to the chiller.
8. Ensure the control and signal wires connected to the chill-
er controller or the VFD are in separate conduit.
VFD Cooling System Leak Inspection
1. Check for leaks on the refrigerant cooling flange connec-
tions to the VFD enclosure.
2. Check for leaks on all tubing internal to the VFD enclo-
sure, the tubing flair connection to the VFD module and
the TXV valve.
3. Verify that the VFD refrigerant cooling system TXV
valve control bulb is securely inserted into the VFD drive
module heat sink.
Power Up Verification
1. Inspect control wiring inside the VFD and verify the in-
tegrity of the connections between the integrated starter
module (ISM) and the VFD module.
2. Close the control power switch in the VFD enclosure.
3. Close the oil pump power switch inside the VFD
enclosure.
4. Verify the VFD disconnect switch is in the open position.
5. Close and latch the doors of the VFD enclosure.
6. Apply power to the VFD enclosure. Remove lock outs
and close all disconnects.
7. Verify that the ICVC display powers up and goes to the
default screen.
8. Close the VFD disconnect switch.
9. Verify the following actions during the VFD start-up self
test:
• The display shows SELF and all LEDs are illumi-
nated for 5 to 6 seconds.
• The display reads a 0 after the diagnosis is
complete.
• If Err is displayed a fault has been detected. Per-
form manual reset by establishing a reset through
the small hole under the VFD Keypad. If this does
not correct the fault contact your Carrier represen-
tative.
• If AR (automatic reset) with a counting down
number is displayed wait for the number to count
to 0 and the display should then revert to a 0. If
the counter starts over at 30 contact Carrier repre-
sentative.
The VFD is configured to attempt an automatic reset of mi-
nor faults every 30 seconds. After a total of 10 failed attempts
to reset a fault, the fault code will be shown and the VFD will
be disabled.
Configure VFD Parameters
— The VFD controller must have
job specific parameters set as defined by the component name-
plates and labels. The parameters come preset by the factory,
but must be verified prior to start-up by accessing the
PROGRAM MODE of the VFD controller keypad. For infor-
mation on how to access the VFD keypad see page 77.
Press the softkey to access the parameter
screen to modify or view the following job specific parameters:
ICVC Parameters for VFD
— The chiller controller must have
its job specific parameters set as defined by the job sheet or
installed nameplates. Below are the job specific parameters
that must be set:
To access the ISM_CONF screen:
1. Press .
2. Press .
3. Enter the password 1111.
4. Select ISM (CONFIG STARTER DATA)
5. Scroll down and select the ISM_CONF DATA screen to
modify or view the ISM parameters:
VFD
PARAMETER
TITLE SETTING
P.004 Maximum
Speed
Line Frequency selected. Per
Compressor Nameplate. 60 for
60 Hz selection.
P.006 Password 107
P. 0 2 8 Speed
Display
Scaling
60 for 60 Hz selection and
50 for 50 Hz selection
H.000 Motor
Voltage
VOLTAGE from "Load Side" section
of the VFD enclosure nameplate
H.001 Frequency Line Frequency selected. Per
Compressor Nameplate. 60 for
60 Hz selection, 50 for 50 Hz
selection
H.002 Motor
Amps
1.08 x Motor FLA from "Load Side"
section of the VFD enclosure name-
plate
H.021 Line
Voltage
VOLTAGE from "Line Side" section of
the VFD enclosure nameplate
H.022 Over
Frequency
Limit
69 for 60 Hz selection, 57 for 50 Hz
selection
P.009, P.010,
r.002, r.003
Input and
Output
Gains and
Offset
Calibrate per instructions on
page 77.
DESCRIPTION SETTING
STARTER TYPE
(3 = VFD)
3
MOTOR RATED
LINE VOLTAGE
VOLTAGE from "Load Side" section of
the VFD enclosure nameplate.
MOTOR RATED
LOAD AMPS
CHILLER FL AMPS from "Line Side"
section of the VFD enclosure
nameplate
MOTOR LOCKED
ROTOR TRIP
MOTOR LRA from "Load Side" sec-
tion of the VFD enclosure nameplate
STARTER LRA RATING 600 for VFD
part #19XVR0414XXX
750 for VFD
part #19XVR0500XXX
900 for VFD
part #19XVR0643XXX
MOTOR CURRENT
CT RATIO:1
163 (500A and 643A VFDs)
120 (414A VFDs)
3 GRND FAULT CT?
(1=NO)
NO
FREQUENCY-60HZ
(YES=60)
YES for 60 Hz selection
NO for 50 Hz selection
PROGRAM
ENTER
SERVICE