ABB C1900 Series, Operating Instructions Manual

4

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.

Unplug
Module

Release
Clip

Remove Terminal
Block Assembly 

1

2

3

Fig. 2.2 Removing Terminal Block Assembly

DAN

GE

R

LIV

E

TE

RM

INA

LS

Remove securing screw

Remove
Cover

1

2

Fig. 2.1 Removing High Voltage

 Digital Interface Card Cover