1 - Multiprox

CT-System11Multifunction Time Delay Relays, ModularThe Comat CT System is modular.The time delay relays and monitoring relays consist of the plug-in CT electronicmodule and an 11-pole CT output relay. Both system components can be combinedfreely with one another. This allows the equipment to be selected optimallyfor specific use.Subsequent modifications, for example a change from mechanical contacts tosolid-state outputs, are possible at any time by simple reconnection.This provides the user a complete, universal system, the high flexibility of whichis unique throughout the world.RELAYSMODULEThe system socket C12B0 servesas a basis for the vibration-free receptionof the electronic module. It has a4-pole module slot in which the CTmodule–also without output relay–locks in such a way that it is vibration-free.Contact is via twin knife contactswhich ensure optimal contact reliability.With the A2-connector C-A2plug-in flush in the socket, the neutralconductor (N / –) can be connectedas a 10A bus from socket to socket.This considerably reduces wiringwork.Robust terminals for cross-sectionsup to 4mm 2 and generous labellingfacilities are other advantages of thispractical comat system socket. As variantsto the standard socket C12B0,two identical sockets, but with printeddevice diagram, are available(C12B1/2). By clearly identifying theconnections, these sockets ensure rapid,error-free and therefore economicalwiring. When a service is required,they faciliate fault location.The CT module demonstrates comat'spractical experience in the areaof industrial electronics. All controland display elements are arranged onthe front and are labelled in a selfexplanatorymanner for internationaluse. The values set are also clearlylegible when the module has been installed.Printed diagrams explain the functions,and the connection scheme directlyindicates the appropriate terminalsin the system socket.A transparent front cover providesprotection from unauthorized misadjustmentand additionally locks themodule onto the output relay.Triggering is performed with theoperating voltage (L1or +). Hence,no potential-free contacts are required.Triggering complies with themachine standards. A parallel connectionof other users to B1 is admissible.The 2 voltage ranges UC110-240Vand UC24-48V have been chosen bycomat to ensure a high level of reliabilityin triggering. They permit use withan AC or DC supply and optimal adaptationto the operating conditions ofmodern controls.In case of an even broader voltagerange, e.g. 24-240V it is often possibleto achieve only currents of a few100µA in the trigger circuit B1 with simultaneouslow threshold voltages toless than 20V. This may lead to unintentionaltriggering due to capacitive/inductivepickups, or faultyswitching may occur owing to sufficientlyloaded control contacts.During operation, 50V are readilymeasured on open-ended lines.The consumption of the CT modulescomes to less than 1W.The output relays have the completedevice diagram, the performancedata and the complete order no.on the front, supported by a colourcode, which indicates an AC coil withred and a DC coil with blue. The .1and .2 relays have a safety manualoperation facility as a standard feature,which switches the contacts onlyafter a lock has been released (twohandprinciple).The standard contacts .1 and .3have proved their worth millions of timesin heavy current applications.The contact material AgNi permits alarge switching range and thanks togenerous dimensioning achieves ahigh number of cycles. With its highbreaking capacity of up to 10A/400V,this contact is a reliable allround contactfor use both in mains circuits andin the lower voltage range from12V/10mA.The twin contacts .2 and .4 switchevery circuit with two independentreeds. Compared with single contacts,they provide up to 100 times greatersafety with regard to the level of possiblefaulty switchings. In spite of theirhigh breaking capacity of up to6A/250V, these contacts are particularlysuitable for low switching currentsand switching voltages down to1mA/6V.The solid-state relays are used insteadof mechanical contacts. In thestandard version .5, the relay has apotential-free output which switchesan AC or DC load in the same way asa mechanical contact. However, itfunctions without bounce or wear,withstands overloads, has shortcircuitprotection and has a practicallyunlimited life even with full outputload.Preferred applications are highswitching frequency, for example asrepeat cycle timers, flashing bars withbulb load or extreme inductive loads,for example large solenoid valves,couplings, motors, etc.An additional protective wiring ofthe output or of the load is not necessaryin these comat relays for any application.They are completely insensitive inan aggressive atmosphere, forexample in the chemical industry, inwaste water treatment plants, etc.CT30CT32CT33CT36and otheres:www.comat.chEconomy timer3 functions, voltage controlled,output LED.Seismic approved.Universal timer7 functions, voltage controlled,time lapse display,blinking.Seismic approved.Universal timer12 functions, voltage controlled,time lapse display,blinking, high setting accuracyby dial graduation 1:5.Universalrepeat cycle timerPulse or pause start.t1/t2 separately settable.Time lapse display t1/t2.F Ot2=t1G Ht2=0,5sTriggeringA2 A1 A2 B1 A1S+S+A2 B1 A1Timer module Function/triggering Time rangeCT30 / ....V CT32 / ....V CT33 / ....V CT36 / ....VEIWEA NW BNote on useAccording to the standards «Safety of machines»e.g. EN 60 204-1, EN 292-2, triggering with A2-potential (N /–) is only admissible in exceptionalcirumstances.For that reason the comat CT modules are triggeredby A1-potential (L /+).This makes them unrestrictedly suitable also foruse in machines and systems which must conformwith machine or CE guidelines or directives.PBK B1EA N L F K G B1W H BE TriggeringFunction (page✹)L(+)N( )Sa)S+0,25s-30min0,25-3s...2,5-30min0,15s-60min0,15-1,5s...6-60min★30ms-60h30-150ms...12-60h★2x50ms-60h2x 50-600ms...5-60h★★ TF60 setting(page✹)A1B1A2a) A parallel load at B1is admissible on allCT30 modules.Order no. for individual module (without output relay):UC110-240V UC115V, UC230V UC115V, UC230V UC110-240VUC24-48V UC24-48V UC24-48V UC24-48V✹ Function Page: 52; ★TF-60 setting: Page 53; Socket and Accessories: Page 9762 KAT2008This edition replaces all previous issues.Availability, errors and specifi cation subject to change without notice.COMAT AG • BERNSTRASSE 4 • CH-3076 WORB • SCHWEIZ www.comat.chTel. +41 (0)31 838 55 77 • Fax. +41 (0)31 838 55 99 • info@comat.ch