Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 1
Version: 3.0
I0000470
FIGURE 1:
DIMENSIONS
ANALOG RESCALING MODULE
INTERFACE SERIES
Installation & Operation Instructions
ARM
Phone:
1-888-967-5224
Website:
workaci.com
3.69”
(93.82mm)
2.17”
(55.27mm)
0.70”
(17.78mm)
2.30”
58.42mm)
2.70”
(68.58mm)
BOARD
SNAP TRACK
GENERAL INFORMATION
The ARM is an analog rescaling module which
accepts an analog (voltage or current) input signal
and rescales it to another voltage or current output
signal. The top-adjust trimmer potentiometers can
be used to make fine adjustments to output ranges
for maximum flexibility. This device can attenuate
an input signal to 100%. The ARM also has an
adjustable gain and offset. The output gain can be
adjusted from 1 to 25 times the input (gain will vary
depending on input). The offset of the output can
be adjusted anywhere from 0 to +/- 20 VDC. The
ARM also has the ability to reverse an input signal.
The ARM has a regulated 20 VDC power supply
output to power sensors. The ARM can also accept
a resistance input by using voltage divider
applications. The ARM is field calibratable,
however, factory calibration is available upon
request for an additional charge. This will speed up
installation time for the end user.
MOUNTING INSTRUCTIONS
Circuit board may be mounted in any position. If circuit board slides out of snap track, a nonconductive
“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.
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 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.
