FLEX I/O and FLEX Integra

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40 120V ac 8 Output Isolated Module Cat. No. 1794-OA8I FLEX I/O and FLEX Integra Product Data120V ac 8 ISOLATED OUTPUT0 1 2 3 4 5 6 71794-OA8I840856120Vac8OutputIsolated Module Cat. No. 1794-OA8IRecommendedTerminal BaseTBNFCompatibleTerminal Base(s)TB3 TB3S TBNTB2Typical Simplified Schematic for Output 0TB3, TB3S, or TB2 shownA-1(C-1)L185-132V acFlexbusInterfaceOptoIsolationA-0(B-0)OutputDevice40944Wiring1794-TBN1794-TBNF16 Even Numbered Terminals 0 thru 14 3316 0 2 4 6 8 10 12 14 3334 1 3 5 7 9 11 13 15 5134 Odd Numbered Terminals 1 thru 15 5116, 0, 2, 4, 6,8. 10. 12. 14. 33B34, 1, 3, 5, 7,9, 11, 13, 15, 51C1794-TB3,1794-TB3S,1794-TB20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1516 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3334 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 510-15 A16-3334-51BC4010234 and 51for TB2Output Channel 1794-TB3, -TB3S, and -TB2 1794-TBNF and -TBNOutput Terminal 120V ac L1 Terminal Output Terminal 120V ac L1 Terminal0 A-0 A-1 B-0 C-11 A-2 A-3 B-2 C-32 A-4 A-5 B-4 C-53 A-6 A-7 B-6 C-74 A-8 A-9 B-8 C-95 A-10 A-11 B-10 C-116 A-12 A-13 B-12 C-137 A-14 A-15 B-14 C-15A = even numbered output terminals 0 thru 14(odd numbered 120V ac L1 terminals 1 thru 15)B = even numbered output terminals 0 thru 14C = odd numbered 120V ac L1 terminals 1 thru 15Publication 1794-2.1 - January 2000
FLEX I/O and FLEX Integra Product Data 120V ac 8 Isolated Output Module Cat. No. 1794-OA8I 41120V ac 8 Isolated Output Module Cat. No. 1794-OA8ISpecifications - 1794-OA8INumber of Outputs 8 individually isolatedModule LocationCat. No. 1794-TBNF, -TB3, -TB3S, -TBN, or -TB2Terminal Base UnitMaximum On-State 1.0V @ 0.5AVoltage DropON-State Current5mA per output minimum500mA per output maximum @ 55 o C (sufficient tooperate an A-B Bulletin 500 NEMA size 3motor starter);750mA per output maximum @ 35 o C;1.0A on 4 nonadjacent outputs, 500mA on theremaining 4 outputs @ 30 o COFF-State Leakage2.25mA maximumOutput Voltage Range 85-132V ac, 47-63HzOutput Current Rating 4.0A (8 outputs @ 500mA)Isolation Voltage100% tested at 2100V dc for 1s between allchannels and system2100V dc for 1s between individual channelsOutput Signal DelayOFF to ONON to OFFFlexbus Current (max)1/2 cycle maximum1/2 cycle maximum80mAPower Dissipation 4.1W maximum @ 0.5A6.3W maximum @ 0.75A6.3W maximum @ 1.0AThermal Dissipation 14.0 BTU/hr @ 0.5A21.1 BTU/hr @ 0.75A21.4 BTU/hr @ 1.0/0.5AIndicators (field side 8 yellow status indicatorsindication, logic driven)Keyswitch Position 8Surge Current7A for 45ms, repeatable every 8 secondsFusingUse 1.6A, 250V ac Slow-Blow, Littelfuse pt. no.23901.6; San-O SD6-1.6A; A-B pt. no. 94171304(The 1794-TBNF fused terminal base comes withSD6-1.6A fuses installed.)General SpecificationsExternal ac PowerSupply VoltageInput FrequencyVoltage RangeSurge Current CapabilityDimensions HxWxDEnvironmental ConditionsOperational TemperatureStorage TemperatureRelative HumidityShock OperatingNon-operatingVibrationConductors Wire SizeCategory120V ac nominal47-63Hz85 to 132V acMaximum 50A for 1/2 cycle at powerup46mm x 94mm x 53mm(1.8in x 3.7in x 2.1in)0 to 55 o C (32 to 131 o F)-40 to 85 o C (-40 to 185 o F)5 to 95% noncondensing30g peak acceleration, 11(±1)ms pulse width50g peak acceleration, 11(±1)ms pulse widthTested 5g @ 10-500Hz per IEC 68-2-612 gauge (4mm 2 ) stranded maximum3/64 inch (1.2mm) insulation maximum1 1PublicationInstallation Instructions 1794-5.56Agency CertificationClass I Division 2 certifiedGroups A, B, C, D certifiedClass I Zone 2 Group IIC certified1 Use this conductor category information for planning conductor routing. Refer topublication 1770-4.1,”Industrial Automation Wiring and Grounding Guidelines for NoiseImmunity.”Publication 1794-2.1 - January 2000
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Page 16: 16 FLEX I/O Terminal Base Unit’s
Page 20 and 21: 20 3-Wire Screw Clamp Terminal Base
Page 22 and 23: 22 Screw Clamp Temperature Terminal
Page 26 and 27: 26 Terminal Base Unit Cat. No. 1794
Page 28 and 29: 28 1794-TBN and -TBNF Wiring FLEX I
Page 30 and 31: 30 AC Module’s Table of Contents
Page 32 and 33: 32 120V ac 8 Input Module Cat. No.
Page 34 and 35: 34 120V ac 8 Isolated Input Module
Page 38 and 39: 38 120V ac 8 Output Module Cat. No.
Page 42 and 43: 42 120V ac 16 Output Module Cat. No
Page 46 and 47: 46 220V ac 8 Output Module Cat. No.
Page 48 and 49: 48 DC Module’s Table of Contents
Page 50: 50 DC Module’s Recommended Termin
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FLEX I/O and FLEX Integra

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