INSTALLATION
Model V13
11
Control terminals (refer to
Power
Circuit Configuration (model V13)
on page 33 for details)
22
LV terminal block X1 and X10
33
Gate firing fibre optic connectors
and firing LEDs (red)
44
Voltage sensing input connector
55
Ground fault CT connector
66
Line CT connectors
77
Access hole for CT wiring
88
Control voltage terminal block
99
CT ratio selector DIP switch S1
110
Fibre optic connections to
controller, and LEDs
111
Access for LV wiring
112
Non-conduction LEDs (green)
113
Alarm inputs
114
Non-conduction readback fibre
optic connectors
115
Switch mode power supply SMPS1
6.13
Ground Current
The ground current selector switches on the power interface board must be set to match the method for
calculating ground current and the ratio of the line current CTs.
NOTE
The soft starter will check the ground fault settings when control power is applied. If the switch settings
are changed, control power must be cycled for the new setting to take effect.
Switch settings for ground current summation method
Line CT ratio
Switch setting
1000:1
1100
Switch settings for ground current zero sequence method
NOTE
Zero sequence ground fault measurement requires a customer-supplied ground fault CT. The CT must
be 1000:1, 1 VA, minimum protection class rating 5P10.
Line CT ratio
Switch setting
1000:1
1100
Example settings for S1
1 1
0 0
0
1
0 0
= 1100
= 0100
16533.
A
C73
C74
13
14
23
24
33
34
43
44
V IN
1 2 3
1 2 3
V0 V1 V2 V3
TX RX
CT3
CT2
CT1
C1 C2 C3 C4 C5 C6
07234.
E
8
7
6
3
5
9
14
12
15
2
13
10
11
1
4
30
MVS Panel User Manual
710-13937-00C