Automation Components, Inc.2305 Pleasant View Road | Middleton, WI 53562Phone: 1-888-967-5224 | Website: workaci.comPage 1A/PS24 (POWER SUPPLY)Installation & Operation InstructionsVersion 2.0I0000824GENERAL INFORMATIONThe A/PS24 adjustable power supply is a low cost, dependable external power supply. This unit will accept an input of up to 26 VAC or 36 VDC, and provides an adjustable 1.5 to 26 VDC output. Field voltage adjustment is done by adjusting a potentiometer using a at-head screwdriver. The A/PS24 is setup for Half-wave rectication from factory, but can be set to Full-wave rectication via jumpers. MOUNTINGPS24 is supplied with a snap track for mounting. The circuit board may be mounted in any position. In equipment / electrical compartments, mounting upside down at top of the enclosure is not recommended as heat build-up could be a problem when running higher current loads.Use only ngers 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 ex board or use tools. WIRING INSTRUCTIONSPRECAUTIONS• Remove power before wiring. Never connect or disconnect wiring with power applied.• All wiring must comply with local and National Electric Codes.• 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.• In applications where a Pilot Duty or remote relay is required, the A/DO008 transorb can be placed across the coil of the relay to snub electrical spikes when the relays are de-energized. An external transorb may not be required if the relay and PS24 power supply is mounted within the same control panel.FIGURE 1: DIMENSIONSPCB BoardSnap Track2.88”(73.2mm)0.70”(17.78mm)2.05”(52.07mm)3.10”(78.74mm)Fuse24 VACVDCOutput Selection JumpersV-OUTAdjustmentPowerIndicator(LED)+-+-Phone: 1-888-967-5224Website: workaci.comAutomation Components, Inc.2305 Pleasant View Road | Middleton, WI 53562Phone: 1-888-967-5224 | Website: workaci.comPage 2WIRING INSTRUCTIONS (Continued)1) Supply Voltage - The input voltage to the A/PS24 should come from an isolated 24 VAC transformer or a 30 to 36 VDC power supply. Connect this to the + 24 VAC – Terminal blocks. Note: A grounded DC (-) terminal and a grounded 24 VAC Input transformer will blow the unit’s fuse in the Full-Wave mode. Also, in half-wave mode, the 24 VAC connections are POLARITY SENSITIVE. Be sure to insure that all 24 VAC minus (-) terminals are connected to the the same lead on the 24 VAC transformer.Without any load attached, the PS24 uses 1.5 VA when powered. Be sure to size the 120 VAC to 24 VAC transformer to handle the power (VA) required by both the PS24 and the load connected to the PS24. The PS24 is 65% ecient with a 24 VDC output voltage setting.Derate the transformer VA to x%. Determine output power required from the equation (voltage output x current draw from load) = VA load. Example: (24 VDC * 0.2A) = 4.8 VA load. Determine transformer power from the equation (output VA / eciency) = VA transformer (or similar). Example: (4.8 VA / 0.65) = 7.4 VA transformer.2) Output Connections – Connect your load to – VDC + Terminal Blocks. Be mindful of polarity. OUTPUT SELECTION JUMPERSHALF WAVE - FULL WAVE RECTIFICATION• The A/PS24 comes with the option of selecting either a Full-Wave or Half-Wave output depending on your application needs. All power supplies are shipped from the factory in Half-Wave mode.• Make sure there is no power applied to the unit when changing jumpers. Failure to do so may harm the unit or cause damage to any other device connected to the power supply. HALF-WAVE VERSUS FULL-WAVE INDENTIFICATION• If a device is half-wave, the signal common will typically be connected to the AC minus (-) terminal on the device. Therefore, with no power applied, take an ohmic measure between signal common and AC (-) using a DMM; the reading should measure less than two (2) ohms. • If a device is full-wave, the signal common and the AC (-) will read overload or open when measured with a DMM.Version 2.0I0000824HALF-WAVE JUMPER SETTINGFULL-WAVE JUMPER SETTINGFULLFULLHALFHALFJ1J1Automation Components, Inc.2305 Pleasant View Road | Middleton, WI 53562Phone: 1-888-967-5224 | Website: workaci.comPage 3Version 2.0I0000824VOLTAGE OUTPUT ADJUSTMENTThe output is factory set to 24 VDC, but can be adjusted from 1.5 to 26VDC. The voltage output can be changed by adjusting the P1 turn pot with a at-head screwdriver. Rotate the turn pot screw clockwise to increase the voltage output, or rotate the turn pot screw counter-clockwise to decrease the voltage output.OUTPUT CURRENTThe maximum output current (mA) will be dependent on multiple factors, including ambient room temperature, voltage, etc. The graph below shows the minimum (bottom line) and maximum (top line) current output. PRODUCT SPECIFICATIONSWARRANTYThe ACI A/PS24 is covered by ACI’s Five (5) Year Limited Warranty, which is located in the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s website: www.workaci.com.W.E.E.E. DIRECTIVEAt the end of their useful life the packaging and product should be disposed of via a suitable recycling centre. Do not dispose of with household waste. Do not burn.22 VAC to 26 VAC, 50/60Hz; or 30 VDC to 36 VDC24 VDC1.5 VDC to 26 VDCJumper SelectableBuilt-in current limiting thermal protectionFuse, 1.25A/250 VAC, 5x20 mm, fast acting (Littelfuse 02171.25MXP or equivalent)32ºF to 158ºF (0ºC to 70ºC)5% to 95% RH non-condensingScrew Terminal Blocks | 14 AWG (2.1 mm2) to 22 AWG (0.33 mm2)4 lb-in (0.5 Nm) maximum Supply PowerOutput Voltage – Factory SetOutput Adjustment RangeHalf-Wave/Full-Wave SelectionOverload ProtectionGround-Loop ProtectionOperating Temperature Range:Operating Humidity Range:Connections | Wire Size:Terminal Block Torque Rating:AMBIENT AIR TEMPERATURE | 77ºF (25ºC)Volts (DC)50.00.20.40.60.81.010121518202427MAX0.605MIN0.325Next >