Electrical Connections - ABB Navigator 540 Instruction Manual

3

Electrical connections

Warning.

If the transmitter is used in a manner not specified by the Company, the protection provided by the equipment may be impaired.

Remove all power from supply, relay, any powered control circuits and high common mode voltages before accessing or making
any connections. Use cable appropriate for the load currents: 3-core cable rated 3 A and 75 °C (167 °F) minimum, and voltage:
100 / 240 V that conform to either IEC 60227 or IEC 60245, or to the National Electrical Code (NEC) for the US, or the Canadian
Electrical Code for Canada. The terminals accept cables AWG 26 to 16 (0.14 to 1.5 mm

Ensure the correct fuses are fitted – see Fig. 6 for fuse details.

Replacement of the internal battery must be carried out by an approved technician only.

The transmitter conforms to Installation Category II of IEC 61010.

All connections to secondary circuits must have insulation to required local safety standards. After installation, there must be no
access to live parts, for example, terminals. Use screened cable for signal inputs and relay connections. Route signal leads and
power cables separately, preferably in an earthed (grounded) flexible metal conduit.

All equipment connected to the transmitter's terminals must comply with local safety standards (IEC 60950, EN61010-1).

The ethernet and bus interface connectors must only be connected to SELV circuits.
USA and Canada Only

The supplied cable glands are provided for the connection of signal input and ethernet communication wiring ONLY.

The supplied cable glands and use of cable / flexible cord for connection of the mains power source to the mains input and relay
contact output terminals is not permitted in the USA or Canada.

For connection to mains (the mains input and relay contact outputs), use only suitably rated field wiring insulated copper
conductors rated min. 300 V, 16 AWG, 90C. Route wires through suitably rated flexible conduits and fittings.
Accessing the connection board
Note. Before fitting cable glands, identify the connections
required and cable gland entries to be used.
Referring to Fig. 5:
1. Using a pozi-drive screwdriver, turn the (captive) electronics
section door retaining screw
and open the door.
2. Turn the cover plate retaining screw
C
the cover plate can be removed.
3. Make connections to transmitter connection board terminals –
see Fig. 6.
C
4. Refit cover plate and secure it by turning retaining screw
B
clockwise until finger-tight. Close the door to the
electronics section and turn door retaining screw
clockwise to secure.
6
A
1
/ turn counter-clockwise
4
B
anti-clockwise until
A
1
/ turn
4
2
).
Fig. 5 Accessing the transmitter board and making electrical
connections
CI/AWT540–EN Rev. C