8000 Zone2.pdf

16-channel Discrete Input24V dc, non-isolated, module-powered8121-DI-DC◆◆◆◆16 input channelsfor dry contact switchespulse counting option24V dc bussed field power requiredSafe areaor Zone 2/Div 2 hazardous areaµPMODULE SPECIFICATIONSee also System SpecificationChannel 1 of 16RailbusINPUTSNumber of channels .........................................................16OFF current ...............................................................< 0.3mAON current ................................................................> 1.2mAWetting current....................................................2.8mA (typ.)Minimum pulse width detected .....................................5msMax input freq in pulse counting mode (no-debounce)......................................................................................100HzIsolation (any channel to Railbus) ..........................250V acCONFIGURABLE PARAMETERSSelectable input filter ........................fast, slow or user defined(User defined permits 0 to 512ms values in 2ms steps)Latch inputs.....................................................enable /disableLatch polarity.................................latch on high / latch on lowPulse counting ................................................enable /disableRESPONSE TIMEI/O response time .................................................5ms (max.)(Field event to new data available on Railbus)24 VdcBussed Field PowerSAFETYFM non-incendive field wiring parameters (each channel)...................V oc = 30V; I sc = 3.5mA; C a = 0.12µF; L a = 1000mHPOWER SUPPLIESRailbus (12V) current..........................................90mA (typ.)...........................................................................135mA (max.)Bussed Field Power................................60mA, @ 18–30V dcMECHANICALModule Key Code ..............................................................E1Module width ...............................................................42mmWeight ............................................................................210gFIELD TERMINALField wiring Recommended CompatibleField Terminal Field TerminalGeneral purpose 8617-FT-NI 8619-FT-MT16/30 channel DI 44-pin MTAClass 1, Div 2 8617-FT-NI 8619-FT-MTor Zone 2 16/30 channel DI 44-pin MTAhazardous areasEUROPE (EMEA) Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283AMERICAS Tel: +1 603 926 0090 Fax: +1 603 926 1899ASIA PACIFIC Tel: +65 487 7887 Fax: +65 487 7997E-mail: enquiry@mtl-inst.com Web site: www.mtl-inst.comOct 2006