Installation Manual

Chapter 6—Installation Requirements
DG1 Series VFD MN040002EN—March 2014 www.eaton.com 29
Power Wiring Selection
Motor cable connections are made to terminals U, V, and W.
Cable Selection: Power and Motor Leads
●
Use UL approved heat-resistant copper cables only
●
75°C or higher for all units rated
●
Line voltage/mains should be Class 1 wire only outside
North America
●
Refer to the following tables for cable sizing guidelines
●
North America 208V to 240V: Appendix B
●
North America 380V to 500V: Appendix B
●
All other International 380V to 600V: Appendix B
Line (Mains) and Motor Cable Installation
The input line and motor cables must be sized in accordance
with the rated DG1 VFD input and output current.
If motor temperature sensing is used for overload protection,
the output cable size may be selected based on the motor
specifications.
Maximum symmetrical supply current is 100,000A RMS for
all size DG1 VFDs.
Input Fusing
Fuses are rated based on DG1 rated input and output
current. Use Class T (UL and cUL/CSA
®
) or type gG/gL (IEC
60269-1). Refer to Appendix B for proper fuse size selection.
Consult with Eaton Electrical for further information on fusing
requirements.
Connection Tightening Torque
Table 19. Tightening Torque
1 2
Notes
1
Strip the motor and power cables as shown in Figure 18 on next page.
2
Both UL and IEC tools may be used.
3
Applies to strained wire, solid wire, or ferrule installations.
Table 20. Spacing Between Parallel Motor Cables
Table 21. Maximum Motor Cable Length by Frame Size
without dV/dT Protected C2 Ratings
1 2
Notes
1
C1 protection requires external filtering. Consult factory.
b
C3 protection is covered under C2 protection levels.
Frame
Size
Power Wire
In-Lb (Nm)
Ground Wire
In-Lb (Nm)
Control Wire
3
In-Lb (Nm)
FR1 230V: 12.1 (1.4)
480V/575V: 5.5 (0.6)
10 (1.1) 4.5 (0.5)
FR2 15.6 (1.8) 10 (1.1) 4.5 (0.5)
FR3 40 (4.5) 10 (1.1) 4.5 (0.5)
FR4 95 (10.7) 14 (1.6) 4.5 (0.5)
FR5 354 (40) 35 (4.0) 4.5 (0.5)
FR6 Available in 2015 — —
Cable Length Distance Between Cables
Less than 164 ft (50m) 1 ft (0.3 m)
Less than 657 ft (200m) 3 ft (1.0 m)
Frame Size Maximum Cable Length (m)
FR1 100
FR2 150
FR3 150
FR4 200
FR5 200