Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 1
Version: 5.0
I0000633
FIGURE 1:
DIMENSIONS
FIGURE 2:
MOUNTING
INTERFACE SERIES
Installation & Operation Instructions
DRN4 - V2
Phone:
1-888-967-5224
Website:
workaci.com
GENERAL INFORMATION
The DRN4 is a resistive output motor actuator
interface that accepts several types of DDC system
signals. The DRN4 output is 0 to 135 ohms. The input
signal types are field selectable by an 8-position DIP
switch. The floating point input accepts two digital
signals, one for increase and the other for decrease.
The floating point full scale rate of change is 55
seconds. Some triac input signals require an
accessory. The DRN4 is supplied in an enclosure that
can be directly mounted to a 1/2 inch knockout on
the motor actuator. Color coded wire leads with
spade connectors are provided for electrical
connections. Some triac inputs require a Triac
adapter kit. Johnson Control triac input signal
requires a 1,000 ohm 1/2 watt resistor and is included
with all DRN4s.
MOUNTING INSTRUCTIONS
Tools needed may include a Phillips screwdriver to
remove actuator cover screws, 3 wire nuts for two
signal and one common wire connections and a
voltmeter for troubleshooting if necessary. Turn off
power to the actuator and remove the actuator
cover. Remove a knock-out on the actuator near the
actuator control terminals. Open the access cover on
the DRN4 and set the switches to the desired mode
of operation. Replace the switch access cover on the
DRN4 and remove the outermost lock-nut from the
DRN4 box connector fitting. Feed the DRN4 wires
through the actuator knock-out and the lock-nut.
Tighten the lock-nut onto the DRN4 fitting. Connect
the DRN4 leads with spade connectors to the correct
actuator terminals, the external control source and
the power source. Wire nut any unused wire and
replace the actuator cover.
WIRING INSTRUCTIONS
PRECAUTIONS
• Remove power before wiring. Never connect
or disconnect wiring with power applied.
• When using a shielded cable, ground the
shield only at the controller end. Grounding
both ends can cause a ground loop.
• It is recommended you use an isolated
3.80”
(96.47mm)
2.40” (60.91mm)
1.00”
(25.40mm)
FRONT
Right
Top
WIRING INSTRUCTIONS
(Continued)
UL-listed class 2 transformer when powering the unit with 24 VAC. Failure to wire the devices with
the correct polarity when sharing transformers may result in damage to any device powered by
the shared transformer.
• If the 24 VDC or 24VAC power is shared with devices that have coils such as relays, solenoids, or
other inductors, each coil must have an MOV, DC/AC Transorb, Transient Voltage Suppressor (ACI
Part: 142583), 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. Without these snubbers,
coils produce very large voltage spikes when de-energizing that can cause malfunction or
destruction of electronic circuits.
• All wiring must comply with all local and National Electric Codes.
DRN4 CONNECTED
TO ACTUATOR USING
1/2" LOCKNUTS
ACTUATOR
