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Wiring
Detailed Field Wiring Points
Input Power and Interconnection Wiring
Table 5
identifies the required power wiring and control wiring
1
related to the MV Drive
. The Overview illustrates the scope of
the field drive related wiring (see
Table 5.
Power and control wiring
Reference #
1.
Three-phase line voltage supply to MV drive. (Voltage per sales order.)
L1 to L1
L2 to L2
L3 to L3
Grd to Grd
2.
MV drive to CTV motor terminals.
T1 to T1
T2 to T2
T3 to T3
3.
Cross power wiring between input starter and drive panel
1U to 1U
1V to 1V
1W to 1W
4.
Chiller Control power
Chiller control power can be supplied at 115 Vac if without the CPTR transformer, or at a specified voltage if the step down transformer
CPTR is specified.
Models CDHF, CDHG, CVHE, CVHF, and CVHG
4a) Without CPTR—Connect 115 Vac 40 amps 4 kVA:
L1 to 1X1-1 Wire #1A
L2 to 1X1-12 Wire #2A
Ground to 1X1-G Ground wire
4b) With CPTR transformer—Connect sales order specified
voltage:
L1 to 4S1-L1
L3 to 4S1-L3
Ground to Ground
5.
High pressure cutout interlock to GateKill (Dry contact input; apply no external power)
Models CDHF, CDHG, CVHE, CVHF, and CVHG
1X1-3 to 3B; wire #3B
1X1-4 to 4B; wire #4B
6.
Oil pump interlock (115 Vac circuit; apply no external power)
Models CDHF, CDHG, CVHE, CVHF, and CVHG
1A7-J2-4 to 9A Wire #9A
1A7-J2-2 to 10A Wire #10A
7.
Remote stop interlock (Must be jumpered if not used)
2436
2437
1
Refer to the chiller Installation, Operation, and Maintenance manual for chiller control wiring requirements.
46
Figure 41, p.
45). The MV
Figure 39, p. 44
drive provides 115 Vac as required for its internal circuits;
however, it does not provide the 115 Vac to power up the
chiller. Therefore, either the chiller requires external 115 Vac
or the CPTR transformer requires its line voltage. Refer to
sales order specifications. Items 1 through 9 are identified on
Figure 39, p.
44.
illustrates the connection to the chiller motor terminals.
Models CDHH and CVHH
With CPTR transformer—Connect sales order specified voltage:
L1 to 6Q1-L1
L2 to 6Q1-L2
Ground to Ground
Models CDHH and CVHH
1X1-3 to 3B; wire #9E
1X1-4 to 4B; wire #4H
Models CDHH and CVHH
1X1-10 to 9A Wire #6F
1X1-21 to 10A Wire #53F
VFDB-SVX001C-EN
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