INSTALLATION AND WIRING
19
(2) Terminal block layout of the power circuit
FR-E540-0.4K to 7.5K-EC
P1
−
+
PR
L
1
L
2
L
3
U
V
W
Screw size (M4)
TB1
Screw size (M4)
FR-E520S-0.4K to 2.2K-EC
P1
−
+
PR
L
1
N
U
V
W
Screw size (M4)
TB1
Screw size (M4)
(3) Cables, crimping terminals, etc.
The following table lists the cables and crimping terminals used with the inputs (L
1
,L
2
,
L
3
) and outputs (U, V, W) of the inverter and the torques for tightening the screws:
1) FR-E540-0.4K to 7.5K-EC
Cables
PVC Insulated
Cables
Crimping
Terminals
mm
2
AWG
mm
2
Applicable
Inverter
Type
Terminal
Screw
Size
Tight-
ening
Torque
N
⋅⋅⋅⋅
m
L
1
, L
2
, L
3
U, V, W L
1
, L
2
, L
3
U, V, W L
1
, L
2
, L
3
U, V, W L
1
, L
2
, L
3
U, V, W
FR-E540-
0.4K-EC
M4
1.5
2-4
2-4
2
2
14
14
2.5
2.5
FR-E540-
0.75K-EC
M4
1.5
2-4
2-4
2
2
14
14
2.5
2.5
FR-E540-
1.5K-EC
M4
1.5
2-4
2-4
2
2
14
14
2.5
2.5
FR-E540-
2.2K-EC
M4
1.5
2-4
2-4
2
2
14
14
2.5
2.5
FR-E540-
3.7K-EC
M4
1.5
2-4
2-4
2
2
14
14
2.5
2.5
FR-E540-
5.5K-EC
M4
1.5
5.5-4
2-4
3.5
2
12
14
4
2.5
FR-E540-
7.5K-EC
M4
1.5
5.5-4
5.5-4
3.5
3.5
12
12
4
4