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1.2.2
Cables, wiring length, and crimping terminals
The following table indicates a selection example for the wiring length of 20m.
1) Three-phase 400V power input
Ter-
minal
Applied Inverter
Screw
size
FR-S540E-
0.4K
M4
to 3.7K-EC
2) Single-phase 200V power input
Applied Inverter
FR-S520SE-
0.2K
to 0.75K-EC
FR-S520SE-
1.5K-
EC
Wiring length
100m maximum. (50m maximum for the FR-S540E-0.4K-EC.)
CAUTION
When the wiring length of the 0.2K of the single-phase 200V class and 0.4K
and 0.75K of the three-phase 400V class is 30m or more, set the carrier
frequency to 1kHz.
When automatic torque boost is selected in Pr. 98 "automatic torque boost
selection (motor capacity)", the wiring length should be 30m maximum. (Refer
to page 119.)
Tight-
Crimping
ening
Terminal
Torque
N⋅m
L1, L2, L3 U, V, W L1, L2, L3 U, V, W L1, L2, L3 U, V, W L1, L2, L3 U, V, W
1.5
2-4
Termi-
Tight-
Crimping
nal
ening
Terminal
Screw
Torque
size
N⋅m
L1, N U, V, W L1, N U, V, W L1, N U, V, W L1, N
M3.5
1.2
2-3.5 2-3.5
M4
1.5
2-4
Cable
2
mm
2-4
2
2
Cable
2
mm
2
2
2-4
2
2
7
Main circuit terminals
PVC Insulation
Cable
AWG
mm
14
14
2.5
PVC Insulation
Cable
AWG
mm
U, V, W
14
14
2.5
14
14
2.5
2
2.5
2
2.5
2.5
1
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