Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 2
Version: 8.0
I0000757
WIRING INSTRUCTIONS
PRECAUTIONS
•
Do not run the temperature sensor wiring in
any conduit with line voltage (24/120/230
VAC) if utilizing resistance temperature
signal.
•
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. Grouding
both ends can cause a ground loop.
•
It is recommended you use an isolated
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.
RELATIVE HUMIDITY WIRING INSTRUCTIONS
ACI recommends 16 to 26 AWG twisted pair wires
or shielded cable for all transmitters. Refer to
FIGURE 4
(top) or wiring diagrams.
TEMPERATURE WIRING INSTRUCTIONS
ACI recommends 16 to 26 AWG twisted pair wires
or shielded cable for all temperature sensors. ACI
recommends a separate cable be pulled for
Temperature signal only. Temperature Signal
wiring must be run separate from low and high
voltage wires (24/120/230VAC).
All ACI thermistors and RTD temperature sensors are
both non-polarity and non-position sensitive. All
thermistor type units are supplied with (2) flying lead
wires, and all RTD’s are supplied with (2) or (3) flying
lead wires – see
FIGURE 6
(bottom). The number of
wires needed depends on the application.
FIGURE 4:
OUTPUT SIGNALS
FIGURE 5:
PRINTED CIRCUIT BOARD
OPTIONAL TEMP. SENSOR (-)
VOLTAGE OUTPUT SIGNAL
CONNECT TO THE 2 or 3
22 AWG FLYING LEADS
OPTIONAL TEMP. SENSOR (+)
4-20mA
0-10 or 0-5 VDC OUTPUT SIGNAL
SUPPLY GROUND / SIGNAL COMMON
AC or DC SUPPLY VOLTAGE
TB1
COM
VIN
VOUT
ON
4
2 3
1
5 6 7 8
FACTORY USE ONLY
SW1
J13
J14
J2
4-20mA
VIN
CO
M
V
OUT
TB1
SPAN
WIRE CONNECTIONS
ZERO
P1
J13
Push tab in and pull up on the sensor
cable to remove from J13 connector.
FIGURE 6:
WIRING
THERMISTOR OR
RTD 2-WIRE
WIRE NUT
RTD 3-WIRE
SAME COLOR WIRES
WIRE NUT
WIRING FROM CONTROLLER
ANALOG INPUT
WIRING FROM CONTROLLER
ANALOG INPUT
3-WIRE RTD WIRING
2-WIRE THERMISTOR or RTD WIRING
