Campbell SDM-CD16AC, Product Manual

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SDM-CD16AC 16 Channel AC/DC Controller
5
On a CR9000X, SDMs connect to the ports on the CR9032 CPU
Module, and on a CR9000, SDMs connect to the ports on the
CR9080 PAM Module.
4.1.2 Controlled Device to SDM-CD16AC Connections
ELECTROCUTION HAZARD! USE EXTREME CAUTION
WHEN WORKING WITH HIGH VOLTAGE INPUTS. DO
NOT COME IN CONTACT WITH HOT LEADS!
FIGURE 4-1 shows how the switches in each channel operate. NO means
“normally open”, NC means “normally closed”. COM means “common” to
NO and NC .
Position of Contacts When Position of Contacts When
Coil is Energized (ON) Coil Is Not Energized (OFF)
FIGURE 4-1. Switch operation
In most applications, the SDM-CD16AC acts as a switch (controllable break)
in one wire of the circuit powering the controlled device. One side of this break
may have power (hot). FIGURE 4-2 shows an example.
NOTE
DANGER!