EQ7 Series Instruction Manual - TECO-Westinghouse Motor Company

2.5 Input Power and Motor Connection
Checking prior to powering on
Fig.2.23 below shows the electrical connections for the input power and motor terminals for various EQ7 DRIVE
models. Verify the input power and motor terminals of the model you are installing. WITH POWER OFF, make the
appropriate connections.
Make sure to follow good wiring practices and all applicable codes. Ensure that the equipment is grounded
properly as shown.
DANGER, LETHAL VOLTAGES ARE PRESENT- Before applying power to the EQ7 drive, ensure that the
terminal cover is fastened and all wiring connections are secure. After the power has been turned OFF, wait at
least ten minutes until the charge indicator extinguishes completely before touching any wiring, circuit boards
or components.
WARNING DO NOT CONNECT ANY OF THE
FOLLOWING TERMINALS TO EARTH GROUND
DB
P1 P(+) N(-)
INPUT POWER
*1 *1
MOTOR
GND
L1/R L2/S L3/T
EQ7
U V W
GND
Ground
(R/L1)
(S/L2)
(T/L3)
To change direction of
motor rotation swap any
two of the three motor
leads.
Input
Protection
(Fuse or Magnetic
Contactor)
(U/T1)
(V/T2)
(W/T3)
Ground
P1
P(+)
L1 L2 L3
Use L1, L2, L3 for
3Ø Input Power
Use L1 & L3 for
2
1Ø Input Power *
3Ø Induction
motor
Connect
frame to
ground
Fig. 2.23
DCR
*1. Refer to page 2-11 & 2-12 for connecting a DC reactor from the terminals P1 and P(+).
*2. Make sure the drive is properly sized for single phase input (consult factory).
(Refer to Table 2.6 Recommended Wire Sizes in this manual).
2-28