AUTOMATION COMPONENTS, INC Version : 4.0
2305 Pleasant View Road Page 2 of 4 I0000475
Middleton, Wisconsin 53562 (888) 967-5224
www.workaci.com
GND
24V
AC Power
GND
24V
OPN
CLS
(+)
(-)
24 VAC
Power
Supply
DRN3.1
TRIAC SIGNAL INPUT
(Switching Common)
INSTALLATION
READ THESE INSTRUCTIONS BEFORE YOU BEGIN INSTALLATION.
Ground yourself before touching board. Some components are static sensitive.
MOUNTING:
Circuit board may be mounted in any position. If circuit board slides out of snap track, a non-conductive “stop” may
be required. Use only fingers to remove board from snap track. Slide out of snap track or push against side of snap
track and lift that side of the circuit board to remove. Do not flex board or use tools.
POWER CONNECTIONS – THIS PRODUCT ACCEPTS 24 VDC or 24 VAC POWER.
Be sure to follow all local and electrical codes. Refer to wiring diagram for connection information.
Be sure to make all connections with the power off
.
1. DC Power – Refer to wiring diagram for connection information.
If the 24 VDC power is shared with devices that have coils such as relays, solenoids, of other inductors,
each coil must have an MOV, DC Transorb, or diode placed across the coil or inductor. The cathode, or
banded side of the DC Transorb or diode, connects to the positive side of the power supply.
2. AC Power – Refer to wiring diagram for connection information.
Check the wiring configuration of any other loads that may be connected to this transformer. If required by
BAS or controller specification, the 24 VAC neutral can be earth grounded at the transformer. Analog input,
digital input, and analog output circuits should not be earth grounded at two points. Any field device
connected to this transformer must use the same common. If you are not sure of other field device
configuration, use separate transformers for isolation.
If the 24 volt AC power is shared with other devices that have coils such as relays, solenoids, or other
inductors, each coil must have an MOV, AC Transorb, or other spike snubbing device across each of the
shared coils. Without these snubbers, coils produce very large voltage spikes when de-energizing that can
cause malfunction or destruction of electronic circuits. Refer to wiring diagram for connection information.
3. You should measure the actual voltage output of the secondary. If the output is not fully loaded, you may
read a higher voltage than the circuit board can handle.
NOTE
#1
