2-8
Installation and Wiring
Capacitive Current Coupling
AC coupling exists from motor cables to ground terminal/protective earth. The
current produced by this coupling is referred to as capacitive current. The drive
current is the combination of capacitive current and motor current. Because motor
current is monitored for overload protection, the table below lists the maximum
cable length recommendations that will assure a capacitive current error of less
than 15 percent.
Cable Length Recommendations — Capacitive Current
Table 2.F
➊
Not recommended for use above 4 kHz PWM Frequency.
➋
When using shielded cable at lightly loaded conditions, cable length recommendations for drives rated 0.75 kW (1 HP) and
below are 61 meters (200 feet).
➌
Not recommended for 230V applications.
380-460V
Ratings
kHz
Motor Cable Only
RWR at Drive
➊
Reactor at Motor
Shielded
➋
Unshielded
Shielded
➋
Unshielded
Shielded
➋
Unshielded
feet
meters feet
meters feet
meters feet
meters feet
meters feet
meters
4.0 kW
(5 HP)
2
350
107
600
183
300
91.5
600
183
400
122
600
183
4
425
130
600
183
350
107
600
183
450
137
600
183
8
475
145
500
152
➊
450
137
500
152
2.2 kW
(3 HP)
2
360
110
600
183
280
85.4
600
183
400
122
600
183
4
375
114
600
183
275
83.8
600
183
400
122
600
183
8
400
122
500
152
➊
400
122
500
152
1.5 kW
(2 HP)
2
300
91.5
550
168
275
83.8
600
183
300
91.5
600
183
4
300
91.5
550
168
275
83.8
600
183
300
91.5
500
152
8
325
99.1
500
152
➊
350
107
500
152
0.75 kW
(1 HP)
2
200
61
375
114
200
61
425
130
225
68.6
400
122
4
225
68.6
375
114
200
61
425
130
225
68.6
375
114
8
250
76.2
375
114
➊
225
68.6
400
122
0.55 kW
(0.75 HP)
2
180
54.9
350
107
180
54.9
375
114
180
54.9
350
107
4
180
54.9
350
107
180
54.9
375
114
180
54.9
350
107
8
180
54.9
350
107
➊
180
54.9
350
107
0.37 kW
(0.5 HP)
2
100
30.5
325
99.1
100
30.5
350
107
100
30.5
300
91.5
4
100
30.5
325
99.1
100
30.5
350
107
100
30.5
350
107
8
100
30.5
325
99.1
➊
100
30.5
350
107
200-240V Ratings
No Reactor
RWR at Drive
➊
Reactor at Motor
0.37 to 4.0 kW
(0.5 to 5 HP)
2 through 8 kHz
Shielded
➋
Unshielded
Shielded
➋
Unshielded
Shielded
➋
Unshielded
feet
meters feet
meters feet
meters feet
meters feet
meters feet
meters
525
160
600
183
➌
525
160
600
183
Summary of Contents for Allen-Bradley 160 SSC Series
Page 12: ...1 6 Getting Started End of Chapter ...
Page 58: ...5 20 Parameters and Programming End of Chapter ...
Page 66: ...A 4 Specifications End of Chapter ...
Page 75: ...Accessories and Dimensions B 9 Drilling Template A Figure B 10 ...
Page 76: ...B 10 Accessories and Dimensions Drilling Template B Figure B 11 ...
Page 82: ...C 6 CE Conformity End of Chapter ...
Page 87: ......