10. Peripheral devices
When supplying power from a wall socket, do not exceed the rated capacity of the socket.
Otherwise, this may generate excessive heat which can start a fire.
Prohibited
When using switchgear for the inverter, it must be installed in a cabinet.
Failure to do so can lead to risk of electric shock and can result in death or serious injury.
Mandatory
action
Connect grounding cables securely.
Failure to do so can lead to risk of electric shock or fire in case of a failure or short-circuit or electric
leak.
Be Grounded
10.1 Selection of wiring materials and devices
Voltage class
Three-phase
240V class
Single-phase
240V class
Single-phase
120V class
Note 1: Sizes of the wires connected to the input terminals R/L1, S/L2 and T/L3 and the output terminals U/T1,
V/T2 and W/T3 when the length of each wire does not exceed 30m.
The numeric values in parentheses refer to the sizes of wires to be used when a DC reactor is connected.
Note 2: For the control circuit, use shielded wires 0.75 mm
Note 3: For grounding, use a cable with a size equal to or larger than the above.
Note 4: The wire sizes specified in the above table apply to HIV wires (cupper wires shielded with an insulator
with a maximum allowable temperature of 75°C) used at an ambient temperature of 50°C or less.
Note 5: If there is a need to bring the inverter into UL compliance, use wires specified in chapter 9.
Capacity of
applicable
Inverter model
motor (kW)
compliant
0.1
VFNC3-2001P
0.2
VFNC3-2002P
0.4
VFNC3-2004P
0.75
VFNC3-2007P
1.5
VFNC3-2015P
2.2
VFNC3-2022P
4.0
VFNC3-2037P
0.1
VFNC3S-2001PL
0.2
VFNC3S-2002PL
0.4
VFNC3S-2004PL
0.75
VFNC3S-2007PL
1.5
VFNC3S-2015PL
2.2
VFNC3S-2022PL
0.1
VFNC3S-1001P
0.2
VFNC3S-1002P
0.4
VFNC3S-1004P
0.75
VFNC3S-1007P
Warning
Wire size (See Note 4)
Power circuit
DC reactor
2
(mm
) (Note 1.)
(optional) (mm
For Japan
IEC
IEC
(JEAC800
compliant
1-2005)
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
2.5(1.5)
2.0(2.0)
1.5
4.0(2.5)
2.0(2.0)
4.0
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
1.5(1.5)
2.0(2.0)
1.5
2.5(2.5)
2.0(2.0)
1.5
4.0(4.0)
2.0(2.0)
1.5
1.5
2.0
-
1.5
2.0
-
2.5
2.0
-
4.0
2.0
-
2
or more in diameter.
J-1
E6581595
Grounding cable
2
2
)
(mm
)
For Japan
For Japan
IEC
(JEAC800
(JEAC800
compliant
1-2005)
1-2005)
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
4.0
3.5
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
2.5
2.0
2.0
4.0
3.5
-
2.5
2.0
-
2.5
2.0
-
2.5
2.0
-
4.0
3.5
10