aci AAR Installation & Operation Instructions
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Automation Components, Inc.2305 Pleasant View Road | Middleton, WI 53562Phone: 1-888-967-5224 | Website: workaci.comPage 1Version: 1.0I0000467FIGURE 1: DIMENSIONSANALOG TO RELAYINTERFACE SERIESInstallation & Operation InstructionsAARPhone: 1-888-967-5224Website: workaci.comGENERAL INFORMATIONThe AAR is controlled by a single analog input signalwith two potentiometers controlling each outputrelay. The two 10 amp output relays can beindependently set to fixed or adjustable deadband.“Fixed”, the relay will turn “ON” at the level set by theLow pot and will turn “OFF” at a fixed 3% of the inputsignal below the turn-on level. “Adjustable” allows aflexible range of deadband adjustment using boththe High and Low potentiometer. Theedge-connector feature allows signal and powerconnections to be extended to the next board. Thisallows the installer to wire the first unit, then slideadditional units together by plugging into a power,and signal bus without the need to strip andterminate additional wires. The AAR is fieldcalibratable, however, factory calibration is availableupon request for an additional charge. Relay trippoints can be factory calibrated, saving installationtime and expense.MOUNTING INSTRUCTIONSThe interface device can be mounted in any position. If circuit board slides out of snap track, anon-conductive “stop” may be required. Use only fingers to remove board from snap track. Slide out ofsnap track or push up against side of snap track and lift that side of the circuit board to remove. Do notflex board or use tools.WIRING INSTRUCTIONSPRECAUTIONS• 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 bothends can cause a ground loop.• It is recommended you use an isolated UL-listed class 2 transformer when powering the unitwith 24 VAC. Failure to wire the devices with the correct polarity when sharing transformers mayresult 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, orother inductors, each coil must have an MOV, DC/AC Transorb, Transient Voltage Suppressor (ACIPart: 142583), or diode placed across the coil or inductor. The cathode, or banded side of the DCTransorb 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 ordestruction of electronic circuits.• All wiring must comply with all local and National Electric Codes.3.25” (82.55mm)2.42”(61.46mm)0.70” (17.78mm)3.25” (82.55mm)2.70”(68.58mm)BOARDSNAP TRACK |
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