Impulse SCMD-MODC User Manual
SCMD-MOAC/MODC
Miniature Digital Output Modules
Description
The SCMD digital output modules are used for switching AC and DC loads such
as relays, solenoids, motor starters, or indicator lamps. All models provide up
to 4000Vrms of optical isolation between the field device and the control logic.
The AC output modules incorporate zero voltage switching and an RC snubber
circuit which allows switching heavy inductive loads. Functionality is denoted
by case colorAC modules are black, and DC modules are red.
Six backpanels are available for mounting SCMD-M digital output modules. See
Accessories section .
Isolated Digital I/O Products
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Features
UL Listed, CSA Certified, CE Compliant
AC Modules have High Current Thyristor
with 100 Amp Surge Capability
Zero or Random Turn-On Available in AC
Modules
Plug into Backpanels for Miniature or
Full-Sized Modules
4kV Optical Isolation (1500 VAC Optical
Isolation for FET DC Output Modules)
Industry Standard Pinout and Footprint
3.5 Amp AC Modules Provide Extra
Switching Capability
5.0 Amp DC Modules Available
Operating Temperature -30 to +80
°C
SCMD
SCMD
Figure 1: SCMD-MOAC/MODC Physical Dimensions
Digital Output Modules - Model No. Suffixes Identifying Optional Features
Suffix Feature
A High voltage versions (280VAC for AC modules,
200VDC for DC modules).
B High voltage version (280VAC for AC modules) with low leakage
output current.
ML FET output version of DC module, 5.0A, 50VDC.
Ordering Information
Model Output Range Supply Voltage
SCMD-MOAC5 12 to 140VAC 5V
SCMD-MOAC5A 24 to 280VAC 5V
SCMD-MOAC5B 24 to 280VAC 5V
SCMD-MOAC24 12 to 140VAC 24V
SCMD-MOAC24A 24 to 280VAC 24V
SCMD-MODC5 3.0 to 60VDC 5V
SCMD-MODC5A 5.0 to 200VDC 5V
SCMD-MODC5ML 0 to 50VDC 5V
SCMD-MODC24 3.0 to 60VDC 24V
Figure 2: SCMD-MOAC/MODC Circuit Diagrams
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