Wiring
48
VFDB-SVX001A-EN
illustrates the nine preceding items (input
power and interconnection wiring) and
illustrates the CTV motor terminals supplied on the chiller
motor terminal ground.
Follow the best wiring practices outlined below:
•
Do NOT bundle input/output cables together.
•
Power cable tray must be a minimum of 12 inches
(300 mm).
•
Ensure no gaps are present at the connection of the
conduit to the cabinet.
•
Spacing between wire groups is the recommended
minimum for parallel runs of approximately 200 ft
(61m) or less.
•
Use only the conduit entrance holes of the cabinet
for all power wiring (input and output), control
wiring, and conduit.
•
Ensure connectors are adequately rated according
to the environmental rating of the cabinet.
•
Route control and power wiring separately. The
distance between the control cable tray and power
cable tray must be 11.8 in (300 mm) minimum.
•
Do NOT mix AC and DC wires within the same cable
bundle.
8.
Communications 3-wire Modbus communication link
Models CDHF, CDHG, CVHE, CVHF, and CVHG
1X3-1 to terminal #8 (Black)
1X3-2 to terminal #3 (White)
1X3-3 to terminal #7 (Green)
Shield Ground one end at drive end only
Models CDHH and CVHH
1X3-1 to terminal #8 (Black)
1X3-2 to terminal #3 (White)
1X3-3 to terminal #7 (Green)
Shield Ground one end at drive end only
9.
Cross control wiring between input starter and drive panel
1035 to D-1035A, wire #D-1035A
1036 to D-1036A, wire #D-1036A
2538 to D-2538, wire #D-2538
2535 to D-2535, wire #D-2535
2543 to D-2543, wire #D-2543
D-VFDL to D-VFDL, wire #D-VFD-L
D-VFDN to D-VFDN, wire #D-VFD-N
Table 5.
Power and control wiring (continued)
NOTICE
Equipment Damage!
Failure to follow instructions below could result in
equipment damage.
Follow all recommended best wiring practices.
