Control Voltage And Control Circuit; Control Voltage, Terminals 1 And 2; Grounding, Terminal 3 - ABB PST Installation And Maintenance Manual

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L
Figure 6: Control voltage
Figure 7: Functional ground
1. . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 8: Tightening torques and cable sizes
42
AC 1006.9 - 5/03
Chapter 5 - Connection
5:2.2

Control voltage and control circuit

5:2.2.1 Control voltage, terminals 1 and 2

Connect the hot and neutral and phase to terminals 1 and 2.
Check that you have the correct control voltage U

5:2.2.2 Grounding, terminal 3

Connect the cable to a grounding point close to the softstarter.
The cable should be as short as possible. A suitable grounding point
would be next to the softstarter on the mounting plate, see Figure 7.
The mounting plate should also be grounded.
This is not a protective ground, it is a functional ground. The
grounding cable should be as short as possible.
M3
0.5 Nm - 4.3 lb.in
3.5x0.6
.
s
2
0.14 ... 2.5 mm
AWG 12 ... 22
2
0.14 ... 2.5 mm
Low Voltage Products & Systems
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