ABB CSU-2LV, Руководство по установке и обслуживанию, Страница: 23 / 84

ABB
ARC GUARD SYSTEM™ – CSU-2LV/2MV INSTALLATION AND MAINTENANCE GUIDE 23
Connecting optical cables
WARNING
Make sure that the supply voltage is switched off!
Follow these steps to connect the optical cables.
1. Remove the protection plug.
2. Connect optical cables to the lower left side
of CSU-2.
The input 1 is for connecting a CSU-2 unit and outputs 2,
3 is for connecting the Arc monitor/Current sensing unit
(TVOC-2/CSU-2).
Connecting electrical connections
WARNING
Make sure that the supply voltage is switched off!
This section describes how to connect the electrical
connections to the CSU-2 and to the Arc Guard System.
Electrical connections are:
1. Over current relay (K1 OC)
2. Modbus (DGND, -(A), +(B))
3. Current sensor inputs (I: L1, L2, L3, N)
4. Power supply (PE, N/A1, L1/A2)
The connections are on top of the CSU-2 see
Figure 6
.
Connecting the CSU-2
WARNING
Make sure that the supply voltage is switched off!
Connect the over current relay, see
Figure 7
and follow the
steps below:
1. Connect wires for over current relay K1.
2. Cable area 0.2 - 2.5 mm² (0.078 x 0.98 inches²).
3. Connect cable for K1 to: 14,12,11.
Figure 5
Connect optical cables
1SFC170020M0201
2
1
Figure 6
Electrical connections
1SFC170020M0201
1 2 4 3
Figure 7
Connecting the over current relay
1SFC170020M0201
24 ... 13 AWG
0,2 ... 2,5 mm
2
24 ... 13 AWG
0,2 ... 2,5 mm
2
7
14 12 11
K1
OC
04