Hitachi SJ7002 Series Instruction Manual page 60
Sj7002 series
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Also See for SJ7002 Series:
- Instruction manual (388 pages) ,
- Service manual (81 pages) ,
- Connection manual (47 pages)
Table of Contents
2–18
Step-by-Step Basic Installation
Determining Wire
and Fuse Sizes
Motor
Output
HP
kW
0.5
0.4
1
0.75
2
1.5
3
2.2
5
3.7
7.5
5.5
10
7.5
15
11
20
15
25
18.5
30
22
40
30
50
37
60
45
75
55
This section includes tables for 200V class and 400V class inverters (on the next page). The
following notes will help you read the tables in this section:
• Locate the row corresponding to the motor size and particular inverter in your application.
The maximum motor current determines the recommended wire sizes.
• The length column specifies that some inverters can optionally use a smaller wire gauge if
the wires are shorter than 10m and the inverter is located in an enclosure.
• Power Lines columns include wires connecting to terminals [R, S, T, U, V, W, P, PD, and N].
Only power input and motor leads will be fused: [R, S, T, U, V, and W]. The breaker ratings
(GFI—ground fault interrupter) are slightly higher than fuse ratings to allow for nominal
surges without tripping.
• The chassis ground columns list the Hitachi-recommended AWG and the minimal AWG for
UL conformity.
• The optional external braking resistor wiring only applies to a few models that have a built-
in braking unit. The other models use an optional external braking unit.
• Parallel wires increase effective wire gauge, and are denoted by "||" in the tables.
• Signal Lines, not listed in these tables, connect to the removable logic connector. The recom-
mended wire gauge for all wiring to the logic connector is 28 AWG (0.75 mm
use shielded wire for any analog signals.
200V
Inverter
Models
AWG
SJ700–004LFUF2
20
SJ700–007LFUF2
18
SJ700–015LFUF2
14
SJ700–022LFUF2
14
SJ700–037LFUF2
10
SJ700–055LFUF2
8
SJ700–075LFUF2
6
SJ700–110LFUF2
4
SJ700–150LFUF2
2
SJ700–185LFU2
1
SJ700–220LFU2
1
SJ700–300LFU2
2/0
SJ700–370LFU2
4/0
SJ700–450LFU2
4/0
SJ700–550LFU2
2/0 || 2/0
* See notes for wiring tables on the following page.
Wiring *1
Power Lines *3
Fuse
(UL-
Breaker
2
rated,
(GFI
mm
class J,
type) *2
600V)
1.25
10A
10A
1.25
10A
10A
2
10A
10A
2
15A
15A
3.5
20A
20A
5.5
30A
30A
8
40A
40A
14
60A
60A
22
80A
80A
30
100A
100A
38
125A
125A
60 or
150A
150A
22 || 22
100 or
175A
175A
38 || 38
100 or
225A
225A
38 || 38
150 or
250A
250A
60 || 60
2
). Be sure to
Chassis Ground
Brake Res.
AWG,
AWG,
2
AWG
mm
rec.
UL
20
20
1.25
20
20
20
1.25
20
14
14
2
14
14
14
2
14
10
10
3.5
10
8
10
5.5
8
8
10
8
6
4
10
14
10
3
8
22
8
3
8
22
8
2
8
30
6
2
6
30
—
1/0
6
38
—
3/0
6
38
—
3/0
4
60
—
2
mm
1.25
1.25
2
2
3.5
5.5
8
14
22
30
38
—
—
—
—
Table of Contents
Troubleshooting
