Download EI-500 Series

█ Wires and Terminal Specification
Refer to the following table for wires and terminal specification of the inverter power input (R/L1、
S/L2、T/L3) and output (U/T1、V/T2、W/T3).
Inverter Capacity
220V Class
(Single-Phase)
220V Class
(3 - Phase)
440V Class
(3 - Phase)
Terminal
Screw
Size
Screw
Torque1
(Kgf·cm)/
lb-in
1 ~ 3 HP
M 4.0
15/ 10
1 HP
2 ~ 3 HP
5.0 HP
7½ HP
1.0 ~ 5.0 HP
7½ HP ~ 10HP
M 3.5
M 4.0
M 4.0
M 4.0
M 4.0
M 4.0
10/ 07
15/ 10
15/ 10
25/ 16
15/ 10
25/ 16
Wire2
Terminals
R/L1、
S/L2、
T/L3
U/T1、
V/T2、
W/T3
2 - 4
2 - 4
2
2
5.5
5.5
2
5.5
-
3.5
4
4
4
4
4
2
2
5.5
5.5
2
5.5
-
3.5
4
4
4
4
4
mm2
R/L1、 U/T1、
S/L2、 V/T2、
T/L3
W/T3
AWG
R/L1、 U/T1、
S/L2、 V/T2、
T/L3
W/T3
2
2
14
14
2
2
3.5
5.5
2
5.5
2
2
3.5
5.5
2
5.5
14
14
12
10
14
10
14
14
12
10
14
10
◆ Power and Motor Connection
R/L1 S/L2 T/L3
P
PR
U/T1 V/T2 W/T3
3-Phase Power Input
Motor
Power supply must be connected to the
R/L1, S/L2, and T/L3 Terminals.
Motor should be connected to the U/T1,
V/T2, and W/T3 Terminals.
Connecting it to the R/L1, S/L2, T/L3
terminals causes internal damages to the
inverter.
Arranging the phase sequence is not
necessary.
If the forward command (S1) is on, the
motor should rotate clockwise when
viewed from the load side of the motor. If
the motor rotates in the reverse, switch the
U/T1 and V/T2 Terminals.
1
Apply the rated torque to terminal screws. Loosen screws can cause short circuit and malfunction. Tightening the screws too
much can damage the terminals and cause short circuit and malfunction.
2
Use copper wires with 600V, 75℃ratings for wiring only.
12