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Installation & Wiring
Wiring
Note When the relay is at rest, the circuit is closed between the NC
and C terminals and open between the NO and C terminals. When the
relay is energized, the circuit is open between the NC and C terminals
and closed between the NO and C terminals. ▲
5. Turn the terminal screw on top of each connection counterclockwise to
fully open the connections.
6. Insert the wires for your control system into the corresponding wire
connections.
7. Turn the terminal screws clockwise to close the connections.
8. Ensure the wire connections are secure, and test the relay (see “I/O
Test” in Chapter 4).
9. Replace the meter access cover.
Figure 2–11. Relay schematic
2-10
SX40 User Guide
Thermo Fisher Scientific