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Installation
Wire Connections at the Variable Frequency
Drive (VFD)
NOTE: Follow the instructions in the VFD
manufacturer’s manual.
Install the wi
ring at the VFD as follows:
1. Connect the wires to the motor. See
Wire Connections at the Motor, page 13.
2. Open the VFD’s electrical box.
3. Install strain reliefs in both ports at the bottom of
the VFD box.
4. Connect the green ground wire to the ground
screw.
5. Connect the wires from the motor terminals to
the matching terminals in the VFD box, as shown
in Fig. 9.
U/T1 V/T2 W/T3 PE
PE
PES
PES
PES
PES
PES
PE
Figure 9 Wire Connections from the Motor to the VFD
Main Power Connections at the VFD
All electrical wiring must be completed by a
qualified electrician and comply with all local codes
and regulations.
Connect the power supply wires to the VFD, as
follows:
1. Connect the wiring between the motor and VFD,
as detailed above.
2. Connect the green ground wire of the power
supply to the ground screw. The ground wire
from the motor is also connected to this screw.
3. Connect the power supply wires to the power
terminals in the VFD box, following all local codes
and regulations. See Table 1 and Figs. 10–14,
as applicable for your system.
4. Close the VFD electrical box.
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4
3A1938E