Wiring; Wiring Instructions; Wire And Terminal Screw Sizes - YASKAWA VS MINI J7 Series Instruction Manual

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5. WIRING

• Wiring Instructions

(1) Always connect the power supply via a molded-case circuit breaker (MCCB) to the
power input terminals R/L1, S/L2, and T/L3 (R/L1, S/L2 for single-phase). Never
connect the power supply to U/T1, V/T2, W/T3,-,+1 or +2.
The single-phase (200V class) inverter can be connected to a 200V 3-phase input.
However, when a single-phase supply is used, never use the terminal T/L3 for other
purposes.
Inverter Power Supply Connection Terminals
200V 3-phase Input Power Supply
Specification Product
CIMR-J7!!2!!!
Connect to R/L1, S/L2, T/L3
(2) Connect the motor wiring to terminals U, V, and W on the main circuit output side
(bottom of the inverter).
(3) If the wiring distance between inverter and motor is long, reduce the inverter
carrier frequency. For details, refer to "Reducing motor noise or leakage current
(n46)" on page 79.
(4) Control wiring must be less than 164ft(50m) in length and separate from the power
wiring. Use twisted-pair shielded wire when inputting the frequency signal
externally.
(5) Tighten the screws on the main circuit and control circuit terminals.
(6) Do not connect or disconnect wiring, or perform signal checks while the power
supply is turned ON.

• Wire and Terminal Screw Sizes

1. Control Circuit
Model Terminal Symbol
Common
MA, MB, MC
to
S1 to
all models
S5,SC,FS,FR,FC,AM,AC
200V Single Input Power Supply
Specification Product.
CIMR-J7!!B!!!
Connect to R/L1, S/L2
Tightening
Screw
Torque
lb • in (N • m)
4.44 to 5.33 twisted wire 0.5 to 1.25
M3
(0.5 to 0.6) single
1.94 to 2.21 twisted wire 0.5 to 0.75
M2
(0.22 to 0.25) single
400V 3-phase Input Power Supply
Specification Product.
CIMR-J7!!4!!!
Connect to R/L1, S/L2, T/L3
Wire
Recommend
Applicable size
size
2 2
AWG
mm mm
20 to 16
0.75
0.5 to 1.25 20 to 16
20 to 18
0.75
0.5 to 1.25 20 to 16
Type
AWG
18
Shielded
wire or
18 equivalent
39