Electrical Installation; Electrical Connections - ABB C1900 Operating Instructions Manual

2 ELECTRICAL INSTALLATION

2.1 Electrical Connections – Figs. 2.1 to 2.3
Warning. Before making any connections, ensure that the
power supply, any high voltage-operated control circuits
and high common mode voltages are switched off.
Note.
• Use flexible conduit for cable routing
(signal and power).
• Always route signal leads and power cables separately,
preferably in earthed metal conduit.
• Screened cable must be used for signal inputs and relay
connections. Connect the screen to the ground stud.
• The terminal blocks can be removed from the main p.c.b.
when making connections. Before removing any module
note its position – see Fig. 2.1.
Information. Use cable appropriate for the load currents.
The terminals accept cables up 12AWG for power supply
connections and 14AWG for all other connections.
D A
N G
E R
T E L I V
R M E
I N
A L
S
Remove
2
Cover
1
Remove securing screw
Fig. 2.1 Removing High Voltage
Digital Interface Card Cover
4
1
Unplug
Module
Release
2
Clip
Fig. 2.2 Removing Terminal Block Assembly
3
Remove Terminal
Block Assembly