8000 Zone2.pdf

16-channel Discrete InputSwitch/proximity detector8220-DI-IS◆◆16 single-ended input channelsintrinsically safe field circuitsHazardous areaZone 0/Div 1Safe areaor Zone 2/Div 2 hazardous area◆◆simple apparatus, dry contacts or ISproximity detectorsopen and short-circuit field wiring detectionResistors are requiredfor line fault detection.680Ω#MODULE SPECIFICATIONSee also System Specification22kΩChannel 1of 16#RailbusINPUTSNumber of channels .........................................................16OFF current ...............................................................< 1.2mAON current ................................................................> 2.1mASwitching hysteresis .........................................200µA (nom.)Applicable specifications.........................NAMUR, DIN19234Voltage applied to sensor..........7.0 to 9.0V from 1kΩ ±10%Output (wetting) current@ 100Ω line impedance.................................................. > 6mALine fault detectionShort circuit ..................................................................< 100ΩOpen circuit ...................................................................> 90kΩMaximum input frequencyin pulse counting mode ................................................20HzMinimum pulse width detected ...................................45msPOWER SUPPLIESIS Railbus (12V) current(16-channel mode).................................................350mA (max.)(8-channel mode)...................................................285mA (max.)MECHANICALModule Key Code ..............................................................B1Module width ...............................................................42mmWeight ............................................................................170gCONFIGURABLE PARAMETERSSelectable input filter ........................fast, slow or user defined(User defined permits 0 to 512ms values in 3ms steps)Latch inputs.....................................................enable /disableLatch polarity.................................latch on high / latch on lowPulse counting ................................................enable /disableLine fault detection.........................................enable /disableRESPONSE TIMEResponse time........................................................6ms (max.)(Field event to availability on Railbus)SAFETYField wiring protection..........................................[EEx ia] IICSafety Description (each channel)(each channel)..................U o = 10.5V, I o = 14mA, P o = 0.04WFM Entity parameters...................V OC ≤ 10.5 V dc, I SC ≤ 14mA...........................................................C a ≤ 2.67µF, L a ≤ 176mHIsolation(any channel to Railbus)................................................60V ac(channels arranged in two groups of eight, with returnscommoned within each group)FIELD TERMINALField wiring typeIntrinsically safe, 16-channelIntrinsically safe, 8-channelloop disconnectRecommendedField Terminal8623-FT-IS8624-FT-ISEUROPE (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