mornsun reserves the copyright specifications subject to change without notice. sw20xx-ex a/0-2008 page 1 of 2 sw20xx-ex isolating switching barrier features product program input(power) output(hazardous end) voltage(vdc) voltage part number typ range typ short cricuit current output (safe end) channel numbers SW2001-EX relay output 1 sw2002-ex 24 18-36 8 vdc < 8 ma relay output 2 electrical characteristics operation voltage 18-36vdc power consumption about 2.0w (with relay output off) common parameter power indicating led light (green) on when operating input signal switch status of numar sensor, mechanical joint etc output voltage 8v open status short circuit current <8ma input switching frequency <10hz hazardous area threshold typ:1.55ma (hysteresis:0.2ma) output signal relay output 1 on joint response time <20ms driving capability 250vac / 3a or 30vdc / 3a safe area load type resistive load transmission characteristics input loop current > 2.1ma, relay output close, channel indicator light (yellow) on. under phase-angel control (k1 off ) input loop current < 1.2ma, relay output open, channel indicator light (yellow) off. input loop current > 2.1ma, relay output close, channel indicator light (yellow) off. under inverse control (k1 on ) input loop current < 1.2ma, relay output open, channel indicator light (yellow) on. open detection function function when k3 is off when connected with namur sensor input loop current < 0.05ma, open circuit alarm, channel red indicator light on. when connected with common contact joint switch to achieve open circuit detection function, a 10k resistor must be connected to the switch in parallel. isolation characteristics electrical isolation isolation between each part (signal input end/signal output end/power source end) isolation strength 2.5kvdc (test for 1minute, humidity < 70%) surge resist 5kv 1.2/50us (based on iec255-4) fitted devices: 1. namur sensors; 2. mechanical joints. phase-angel and inverse control setting; open circuit detection setting respective isolation(2,500vdc between input/output/power source); operation temperature:-20 -+60 reliable performance (mtbf>1,000,000 hours). applications this isolation switching barrier can detect switch or approach switch s status in locations where hazardous exists; isolat e, transmit and output it to safe area. input and output can be set to inverse control. approach switch open circuit detection function. isolation between input/ output/power source. model selection swxxxx-ex detecting signal type signal output mode (hazardous area) signal output mode (safe area) additional function channel number explosion protection certification mark mornsun guangzhou science & technology co., ltd. address: 2/f, bldg 6, huangzhou industrial park, chebei rd, tianhe, guangzhou, china 510660 tel: 86-20-38601850 39601530 38601679 fax: 86-20-38601272 http://www.mornsun-power.com emc en61326
mornsun reserves the copyright specifications subject to change without notice. sw20xx-ex a/0-2008 page 2 of 2 standards and certifications explosion protection certification mark [exia]iic application in intrinsically safe explosion protection system explosion protection certification parameters um=250vrms uo=10.5v io=14ma po=37mw co=1.6uf lo=150mh certified by: china national quality supervision and test centre for explosion protected electrical products no.:cnex08.0003 other characteristics operation temperature:-20-+60 ambient temperature transport and storage temperature:-40-+85 package 35mm din rail package: t type din rail (din50022), 4x 4 terminals plug and pull connector, thickness 22.5mm, anti-flaming material ul94-v0 protection grade ip20(iec60529 / en60529) weight about 66g packaging siae and terminal description 9 9 . 0 916 . 22.5 channel1phaseangleandinversecontrolsetting - opencircuitalarmcontrol opencircuitindicatorcontrol outputindicatorlight powersourceindicatorlight safeareahazardousarea channel1outputchannel1 channeloutputchannel1input inputofpowersource inputofpowersource channel2outputchannel2input channel2outputchannel2input : : 1: (-) 13: (-) 2: (+) 14: (+) 3: (-) 4: (+) 5: (-) 9: (-) 6: (+) 10: (+) input : . :+.. unitmm tolerance05mm noteinsinglechannelmodelchannel2isinvalid : , . channel2phaseangleandinversecontrolsetting - application circuit diagram 1836vdc - 34 1 2 14 13 5 6 9 10 inputvoltageofpowersource hazardousareasafearea dcsplc channel1 channel2 noteinsinglemodelchannelisinvaid : , 2 . i n intrinsic safety explosion protection systems, isolating barrier belongs to affiliated device. it is installed at safe area, as a connection between intrinsic safety devices in the hazardous area and non-intrinsic safety devices in the safe area. by limiting the energy to a certain safe amount, it ensures the safety of in spot devices and people. selection regulations for intrinsic safety explosion protection system: 1 the explosion protection grade of the barrier must be equal to or higher than that of in spot intrinsic safety explosion protection device. 2 take inconsideration of hazardous end output resistance and loop resistance, make sure the barrier s output voltage meets the minimum operation voltage requirement of in spot intrinsic safety device. 3 the safety parameters of barrier s intrinsic safety end meets: uo ui, io iin, po pin co cin, lo lin 4 select suitable safety barrier which matches the in spot intrinsic safety device for the power s phase, signal type and transmission mode. 5 apply necessary protections, avoid influence the in spot intrinsic safety device s operation from leakage current that generated by safety barrier. operation notes: 1. please read the user manual carefully before using. if any questions please contact our technical support department. 2. please do not use this product in hazardous area. 3. the power supply of this product should be 24vdc power source. it is forbidden to use 220vac power supply. 4. to avoid invalid explosion protection function, or any failure, users disassemble this product is forbidden.
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