Basic System Description - Hitachi SJ100 Instruction Manual

2–14
Step-by-Step Basic Installation
Determining Wire and Fuse Sizes
The maximum motor currents in your application determines the recommended wire
size. The following table gives the wire size in AWG. The "Power Lines" column
applies to the inverter input power, output wires to the motor, the earth ground connec-
tion, and any other component shown in the
The "Signal Lines" column applies to any wire connecting to the two green 8-position
connectors just inside the front panel half-door.
Motor Output
(kW/HP)
kW HP
0.2 1/4
0.4 1/2
0.55 3/4
0.75 1
1.1 1 1/2
1.5 2
2.2 3
3.7 5
5.5 7 1/2
7.5 10
0.4 1/2
0.75 1
1.5 2
2.2 3
3.0 4
4.0 5
5.5 7 1/2
7.5 10
Note 1:
Note 2:
Note 3:
Note 4:
Inverter Model
SJ100-002NFE/NFU
SJ100-004NFE/NFU
SJ100-005NFE
SJ100-007NFE/NFU
SJ100-011NFE
SJ100-015NFE/NFU
SJ100-022NFE/NFU
SJ100-037LFU
SJ100-055LFU
SJ100-075LFU
SJ100-004HFE/HFU
SJ100-007HFE/HFU
SJ100-015HFE/HFU
SJ100-022HFE/HFU
SJ100-030HFE
SJ100-040HFE/HFU
SJ100-055HFE/HFU
SJ100-075HFE/HFU
Field wiring must be made by a UL-listed and CSA-certified closed-loop
terminal connector sized for the wire gauge involved. Connector must be
fixed by using the crimping tool specified by the connector manufacturer.
Be sure to consider the capacity of the circuit breaker to be used.
Be sure to use a larger wire gauge if power line length exceeds 66 ft. (20m).
Use 18 AWG / 0.75 mm
terminals).
"Basic System Description" on page
Wiring
Power Lines Signal Lines
2
AWG16 / 1.3 mm
2
AWG14 / 2.1 mm
2
AWG12 / 3.3 mm
2
AWG10 / 5.3 mm
2
18 to 28 AWG /
AWG12 / 3.3 mm
0.14 to 0.75 mm
2
AWG10 / 5.3 mm
shielded wire
(see Note 4)
2
AWG8 / 8.4 mm
2
AWG16 / 1.3 mm
2
AWG14 / 2.1 mm
2
AWG12 / 3.3 mm
2
wire for the alarm signal wire ([AL0], [AL1], [AL2]
2–5.
Applicable
equipment
Fuse (UL-rated,
class J, 600V)
10A (single ph.)
7A (three ph.)
15A (single ph.)
10A (three ph.)
20A (single ph.)
15A (three ph.)
30A (single ph.)
20A (three ph.)
30A
2
40A
50A
3A
6A
10A
15A
20A
25A