GE XMO2, User Manual

Page: 27 / 196

September 2007
2-8 Installation
Wiring the Signal
Connections
Complete the following steps to make the signal connections to
terminal block TB1:
1. Install a cable clamp or gland in one of the 3/4” conduit holes.
Caution!
Be sure to plug the unused conduit hole to maintain the
designated weatherproof or explosion-proof rating.
2. Route the 4-wire and 3-wire (if used) cables through the cable
clamp. Then, tighten the clamp to secure the cable(s).
3. Unplug the TB1 connector by pulling it straight off the printed
circuit board, and loosen the screws on the side of the connector.
4. Connect the 24 VDC input power leads as follows:
Caution!
Connecting the +24 VDC (red) lead to any terminal except
TB1-1 will damage the XMO2.
a. Insert the 4-wire cable +24 VDC (red) lead into pin TB1-1 and
tighten the screw.
b. Insert the 4-wire cable –24 VDC (black) lead into pin TB1-2
and tighten the screw.
5. Connect the 4-20 mA analog output leads as follows:
a. Insert the 4-wire cable + 4-20 mA (white) lead into pin TB1-3
and tighten the screw.
b. Insert the 4-wire cable – 4-20 mA (green) lead into pin TB1-4
and tighten the screw.
6. Connect the optional RS232 digital output leads as follows:
a. Insert the 3-wire cable RX (red) lead into pin TB1-6 and
tighten the screw.
b. Insert the 3-wire cable TX (white) lead into pin TB1-5 and
tighten the screw.
c. Insert the 3-wire cable GND (green) lead into pin TB1-2 and
tighten the screw.
7. Carefully plug the TB1 connector back onto the printed circuit
board, and reinstall the cover on the XMO2.
8. Connect the other ends of the cables to the 24 VDC power supply,
the 4-20 mA input of the display/control device, and the serial port
of the computer or terminal (see the instruction manuals for those
devices for details).