Electrical Installation - YASKAWA V7 Technical Manual

1.4 ELECTRICAL INSTALLATION

The Drive leaves the factory with all parameters set for 2-Wire external reference control. Figure 1-5
must be used for all external connections.
To use the Drive in a 3-Wire application, drive parameters n001, n003, and n004 must be
reprogrammed, using the Digital Operator. Figure 1-6 must then be used for all external connections.
When a cable gland is used for water and dust tight type (NEMA type 4X/12) models, observe the
following:
• Use multi-core cable for cable gland. (If more than one cable is inserted into one cable gland,
a gap is created and may cause leakage.)
• Seal the cable gland with a gasket without fail. (A gasket is attached to the recommended
cable gland.)
Cable Gland Mounting Hole
Model CIMR-V7*
A. Main Circuit Input /Output Wiring
Complete wire interconnections according to Table 1-2, Figure 1-5 thru Figure 1-7. Be sure to
observe the following:
• Use 600V vinyl-sheathed wire or equivalent. Wire size and type should be determined by local
electrical codes.
• Avoid routing power wiring near equipment sensitive to electrical noise.
• Avoid running input and output wiring in the same conduit.
• NEVER connect AC main power to output terminals T1(U), T2(V), and T3(W).
• NEVER allow wire leads to contact metal surfaces. Short-circuit may result.
• NEVER connect power factor correction capacitors to the drive output. Consult Yaskawa when
connecting noise filters to the drive output.
• WIRE SIZING MUST BE SUITABLE FOR CLASS I CIRCUITS.
• When connecting motor to drive's output terminals, include a separate ground wire. Attach
ground wire solidly to motor frame and to drive's ground terminal
• When using armored or shielded cable for connection between drive and motor, solidly connect
armor or shield to motor frame, and to drive's ground terminal
• Motor lead length should NOT EXCEED 164 feet (50 meters), and motor wiring should be run in
a separate conduit from the power wiring. If lead length must exceed this distance, reduce carrier
frequency (see paragraph 5.8) and consult factory for proper installation procedures.
• Use UL listed closed loop connectors or CSA certified ring connectors sized for the selected wire
gauge. Install connectors using the correct crimp tool recommended by the connector manufacturer.
IMPORTANT
20P1
20P2
20P4
20P7
21P5
22P2
23P7
25P5
27P5
40P2
40P4
40P7
41P5
42P2
43P7
45P5
47P5
Dimensions in inches (mm)
MV
A001
A002
A003
A005
A008
A011
A017
A025
A033
B001
B002
B003
B005
–
B009
B015
–
.
1-6
Qty-Dia
3-0.89 DIA
(3-Ø 22.6)
3-1.06 DIA
(3-Ø 26.8)
3-1.38 DIA
(3-Ø 35)
3-0.89 DIA
(3-Ø 22.6)
3-1.06 DIA
(3-Ø 26.8)
3-1.38 DIA
(3-Ø 35)
.