SERIES A POWER SUPPLIES INSTALLATION AND OPERATION Threaded holes on the bottom (and one side surface on M6, M9, & M13 case sizes) may be used for mounting, or the supply may be rear mounted using the same holes that attach the rear cover plate. An accessory Mounting Kit (model GB8) is available to enable mounting the power supply when the opposite side of the mounting surface is inaccessible. DIN rail Mounting Kits are also available. Even a relatively small amount of air flowing around and through a power supply will significantly reduce the rise in its temperature resulting from operation, and therefore the temperature of the critical components within it, improving both reliability and stability. Avoid blocking air flow through vented surfaces. If the perforated bottom of a supply is mounted to a solid surface, use spacers at least 3/16" thick between it and the surface to which it is fastened, to permit convection air flow, or punch ventilation holes in the mounting surface. Allow free air to circulate around heat sinks. Space at least one inch away from surrounding objects. Make all connections before applying AC input power. THE SENSING TERMINALS MUST BE CONNECTED to the output terminals, either at the barrier strip on the power supply or at the load. Failure to have the sense terminals connected will affect the output voltage (usually causing it to be higher than the rating of the supply, and unadjustable), and may result in permanent damage to both the power supply and its load. If voltage drops in the output voltage leads (which degrade regulation) are not objectionable, local sensing can be used; leave in place the jumpers provided with the power supply on the barrier strip (connecting the +SENS to the +OUT terminal and the SENS to the -OUT terminal). However, if the best possible regulation at the load is required, then remove the jumpers and use two additional leads to connect the sense terminals to the output leads at the load, as shown in the schematic. This configuration permits the power supply to sense and compensate the voltage actually across the load. Note that remote sensing is capable of compensating only limited wiring drops. The voltage across the load, plus the voltage drops through the wiring, must be within the output voltage range of the supply for the voltage at the load to remain within the load regulation specification. For Under/Overvoltage Alarm Contacts Option (model number with "L" suffix): SPDT contacts switch if the power supply's output deviates by; 1.0 volt or more for 5 volt models, 2.0 volts or more for 6 to 48 volt models, 3.0 volts or more for 50 to 125 volt models. Contact ratings: 120 VAC, 8A / 60 Vdc, 1A. (To comply with SELV requirements, limit switched voltage to 60Vdc/42 VAC.) If there is any possibility of voltage from another source (another power supply, a battery, transients, etc) being applied to the power supply's output terminals, protect the power supply by using a diode in series with one of the output leads. Do not attempt to directly parallel the outputs of two power supplies. This would result in current flowing from the higher-set output into the lower-set output, and probable damage to both circuits. Outputs may be connected in series to obtain a higher voltage provided that a reverse-biased diode, having PIV and current ratings exceeding the combined output, is used across each output; however, keep in mind that the output current to be drawn cannot exceed the output current rating of the lowest rated supply used. Frequent fuse failure is symptomatic of power supply overload, a short circuited output, a tripped overvoltage protector, or power supply failure. Do not overfuse; this can result in damage to the power supply. If the AC input power contains large voltage spikes (`noise') induced by the switching of high currents, inductive loads, electro-mechanical components, etc., the input power leads to the supply should include some means of transient suppression. Otherwise, a portion of the noise may be coupled through the supply to the load. Also, the supply could be damaged. The means of suppression that is easiest to install is a 1 mfd capacitor or a metal oxide surge suppressor (MOV) across the AC input terminals of the supply. In extremely severe cases, the use of RF chokes in series with each side of the line may also be required. W .375 C NC NO Connections for Optional Alarm Contacts H Voltage Adjust + + - - L N J Q OUT SENS OUT AC AC B These power supplies operate as constant voltage sources when used at load current equal to or less than their ratings. If the power supply is overloaded, the current limit circuit will automatically reduce the output voltage, and it will then attempt to recover to its normal operating point. Therefore, A TRANSITORY OVERLOAD RESULTS IN A MOMENTARY DROP IN OUTPUT VOLTAGE. However, if the overload is still present when the voltage attempts to recover, the voltage will continue to alternately drop and recover, which will appear as a sawtooth oscillation of the output. Do not operate the power supply in this mode; reduce the load so that an output current equal to or less than the rating of the supply will be drawn. Barrier Strip: C 6-32 screws (M6,9,13) (Typ.) 8-32 screws (H8,11,16) D E (max.) 1.0 SIDE MOUNTING L BOTTOM MOUNTING 8-32 threaded holes(4). Maximum incursion of screws into mounting holes: 5/16" (.312") 8-32 threaded holes(4) (none for sizes H8, H11, H16). Maximum incursion of screws into mounting holes: 5/16" (.312") LM -certified models: SPECIAL MEASURES AND LIMITATIONS To maintain compliance with the Low Voltage Directive, the following special measures and limitations must be observed when the product is placed into service: * CE Marked to Low Voltage Directive. * Evaluated for use in Pollution Degree 2 environment. * Intended for connection to Class 1, TN-S power system. * Models with outputs of 36 volts or less are considered to have SELV outputs. * Models with outputs greater than 36 volts are considered to have hazardous voltage outputs and should not be located in an Operator Access area in the end product. * Models with output ratings less than 240VA are considered to have non-hazardous energy levels. Models with output ratings of 240VA or greater are considered to have hazardous energy levels. * Models without a built-in fuse require an external fuse to be used in the ungrounded (hot) side of the AC line. * See catalog for electrical and mechanical specifications. * Ground terminal must be bonded to protective earth. * Intended to be installed within end-use equipment. V Y For REAR MOUNTING, remove original screws(4) and use 8-32 Type F self-tapping screws. They should extend at least 5/16" (0.312") into the power supply case. Case Size M6 M9 M13 H8 H11 H16 L 6.59 9.25 13.25 8.75 11.25 16.00 W H M V Y Q B E C D G J Approx. Weight 5.12 5.12 5.12 7.37 7.37 7.37 3.44 3.44 3.44 5.12 5.12 5.12 4.0 6.0 10.0 6.0 8.0 11.0 4.5 4.5 4.5 6.75 6.75 6.75 3.0 .5 3.0 .5 3.0 .5 4.56 1.12 4.56 1.12 4.56 1.12 .75 .75 .75 1.25 1.25 1.25 .58 .58 .58 .78 .78 .78 .375 .375 .375 .562 .562 .562 1.44 1.44 1.44 2.25 2.25 2.25 2.19 2.19 2.19 3.57 3.57 3.57 3.09 3.09 3.09 4.72 4.72 4.72 4 lb. 4 oz. 7 lb. 4 oz. 11 lb. 15 lb. 8 oz. 18 lb. 4 oz. 26 lb. The complete Acopian catalog is available on the Internet at www.acopian.com P.O. Box 638, Easton, PA 18044 * Phone: (610) 258-5441 * FAX: (610) 258-2842 OPIAN ALL AC IES SUPPL . P O WE R .A .S N U MADE I REV4 Applies to G SERIES A POWER SUPPLIES Acopian modular power supplies are ideally suited to all applications where compact, high performance and high reliability power supplies are required. Modular construction and barrier strip interconnections provide mounting and wiring convenience and flexibility. All models have floating outputs which may be used floating, with either the positive or negative side grounded, and/or in series with another supply(ies). All have built-in short circuit protection and provision for remote sensing of output voltage at the load for applications where voltage regulation is critical. They are conservatively rated for operation at ambient temperatures to +71C. Depending upon output current rating, from 2 to 8 pairs of Q12 & R26 are used in parallel. 1 Dotted line connection required K11 2 Dotted line connection required 1 Q1 K10 Q3 K2 2 K3 K4 +OUT R3 R12 R14 + K8 K7 C3 + C8 C6 Q4 + R11 C NO - OUT L AC INPUT N K12 - SENS K9 Q6 + SENS R16 C2 white Z1 CASE C1 105 -125 VAC, 50-400Hz (Standard) 210-250 VAC, 50-400Hz (When model number ends in -230) + white K5 R1 R22 Z2 R2 R9 R18 R8 R19 C9 R15 R29 Q7 remote V adj LOAD CW - SENS Q8 R10 - OUT *THE DOTTED LINE CONNECTION IS REQUIRED, R7 R17 R21 * NC K6 C7 C4 + +OUT + SENS T R4 K1 R31 + C5 R30 R13 R28A R25 R27 (optional ) C10 R28 R23 Q2 (optional ) + Connecting Power Supply to the LOAD: UOV MONITOR T1 R26 Q12 when K3 and K4 are omitted. OVERVOLTAGE PROTECTOR when C10 and K10 are omitted. unless remote voltage adjustment is used. If using remote adjustment, the built-in adjustment must be turned fully CCW. The remote potentiometer should have these values: For models with 0.5v adjustment; use a 200 ohm pot (0.5w), For models with 1v adjustment; use a 1K pot (0.5w) Z3 R6 The MODEL NUMBER indicates any included options; prefix V: overvoltage protection suffix F: fungus proofing suffix L: under/overvoltage alarm contacts suffix M: terminal strip cover suffix -230: 230v input Q5 CAUTION: To provide protection from risk of fire, include in the AC input wiring a 250V time-delay fuse with the amp rating listed below: (These fuse ratings are for 115V input models only; contact factory for fuse ratings for 230V input models.) MODEL A1.5MT600 A1.5MT900 A1.5MT1200 A1.5H2200 A1.5H3200 A2MT600 A2MT1200 A3MT600 A3MT900 A3MT1200 A3H1700 A3H2000 A3H3000 A3.3MT600 A3.3MT900 A3.3MT1200 A3.3H1700 A3.3H2200 A3.3H3200 A5MT510 A5MT600 A5MT900 A5MT1200 A5H1700 A5H2200 A5H3200 A6MT490 A6MT600 A6MT850 Fuse size 8/10 1-1/4 1-1/2 3 4 8/10 2 1 1-1/2 2 2-1/2 2-1/2 4 1 1-1/2 2 2-1/2 3 5 1 1-1/4 2 2-1/2 3 4 6-1/4 1 1-1/4 2 MODEL A6MT1100 A6H1600 A6H2100 A6H2800 A7MT500 A7MT800 A7MT1000 A8MT500 A8MT800 A8MT1050 A8H2000 A8H2800 A9MT1000 A10MT450 A10MT750 A10MT1000 A10H1400 A10H1800 A10H2500 A12MT400 A12MT650 A12MT900 A12H1300 A12H1700 A12H2100 A13MT350 A13MT800 A14MT300 A14MT800 Fuse size 2-1/2 2-1/2 4 5 1-1/4 2 2-1/2 1-1/4 2 2-1/2 5 6-1/4 2-1/2 1-1/2 2 3 4 5 6-1/4 1-1/2 2 3 4 5 6-1/4 1-1/4 3 1-1/4 3 MODEL A15MT300 A15MT550 A15MT800 A15H1150 A15H1500 A15H1900 A16MT650 A18MT210 A18MT450 A18MT650 A18H1400 A18H1800 A20MT200 A20MT400 A20MT600 A20H950 A20H1300 A20H1600 A24MT210 A24MT350 A24MT550 A24H850 A24H1200 A24H1500 A28MT210 A28MT300 A28MT500 A28H800 A28H1100 Fuse size 1-1/4 2 3 4 6-1/4 6-1/4 2-1/2 1 2 3 6-1/4 8 1 2 3 4 6-1/4 8 1-1/4 2 3 4 6-1/4 8 1-1/2 2 3 5 6-1/4 MODEL A28H1400 A30MT210 A30MT300 A30MT500 A30H750 A30H1000 A30H1400 A32MT180 A32MT250 A32HT900 A36MT130 A36MT230 A36MT400 A36HT800 A36HT1100 A48MT120 A48MT180 A48MT300 A48HT600 A48HT850 A50MT100 A50MT150 A50MT270 A50HT600 A50HT800 A60MT85 A60MT120 A60MT250 A60HT500 A60HT700 Fuse size 8 1-1/2 2 3 5 6-1/4 8 1-1/4 2 6-1/4 1 2 3 6-1/4 8 1-1/2 2 3 6-1/4 8 1-1/4 2 3 6-1/4 8 1-1/4 2 3 6-1/4 8 MODEL A75MT60 A75MT100 A75MT200 A75HT400 A75HT560 A90MT50 A90MT80 A90MT150 A90HT330 A90HT440 A100M70 A100MT130 A100HT300 A100HT400 A120M60 A120MT120 A120HT250 A120HT350 A125MT50 A125MT120 A125HT250 A125HT350 A150MT100 A150HT300 Fuse size 1 1-1/2 3 6-1/4 8 1-1/4 1-1/2 3 6-1/4 8 2 3 6-1/4 8 1-1/4 3 6-1/4 8 1-1/4 3 6-1/4 8 3 8