Specifications

SDM-CD16AC 16 Channel AC/DC Controller
5
4.1 Wiring
4.1.1 SDM-CD16AC Power and Control Connections
Refer to Figure 3 and Table 1 for SDM-CD16AC operating power and control
connections to the datalogger.
4.1.2 Controlled Device Connections
ELECTROCUTION HAZARD! USE EXTREME CAUTION
WHEN WORKING WITH HIGH VOLTAGE INPUTS. DO
NOT COME IN CONTACT WITH HOT LEADS!
Figure 2 shows how the switches in each channel operate. NO means
“normally open”, NC means “normally closed”. COM means “common” to
NO and NC.
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 shows an example.
Device
Neutral (-) Hot (+)
NO
NC
COM
FIGURE 4. Typical Wiring Application
4.1.3 Motor Control
The CD16AC is a UL approved Start/Stop motor controller. In the figure
below, a typical 5 Amp 115 VAC relay contact circuit shows how to control a
three phase motor starter in a Motor Control Center (MCC). Typically, the
CR10X will automatically command the appropriate relay to energize the
motor starter. The relay in the CD16AC will remain latched until the CR10X
program commands that the motor be turned off, at which time the relay will
open the circuit to the motor starter and the motor will stop.
The CD16AC can be used to control three phase pump motors, air blowers,
and large control valves in the same fashion.
DANGER!