8000 Zone2.pdf

Pulse Input Module2-channel pulse/quadrature input8123-PI-QUSafe area orZone 2 / Div 2 hazardous areaOutputsCounter, display,rate meter123.45dc powerSolenoid, alarmor other devicedc powerCh1 Ch213 1514 16NAMURgate control*For switch-type sensors,resistors are required forline fault detection.11 N/A12 N/A3-wirevoltage pulseInput SensorsExternalvoltagepulse2-wirecurrent pulse4-20mA3-wirecurrent pulse4-20mAExternalcurrentpulse4-20mASwitchProximitydetector5 61 7Channel 1 of 2#V2 83 9Railbus4 10◆◆◆◆◆◆◆2 input channels with power supplies or singlequadrature input1Hz to 50kHz signal capabilityfrequency & acceleration measurement2-alarm/repeater retransmitted output channels2- and 3-wire pulse transmitter formatpulse counting (with gate control)channels independently configurable◆ open circuit, short circuit and missing pulsedetectionMODULE SPECIFICATIONSee also System and Common Module Spec.INPUTSPULSE/FREQUENCYNumber of channels ...........................................................2Maximum frequency ...................................................50kHz(in quadrature mode) .....................................................12.5kHzAccuracy (25°C)..............................................± 0.05% of spanTemperature Stability ........................................0.005% / °CCONTROL GATE (for gating Channel 1 only)Switching thresholds .....................................1.2mA / 2.1mAInput impedance .............................................................1kΩSupply voltage..........................................8.1V (nom.) at 8mAINPUT CHARACTERISTICSNAMUR 1Switching thresholds .....................................1.2mA / 2.1mAInput impedance .............................................................1kΩSupply voltage..........................................8.1V (nom.) at 8mACURRENTInput signal .........................................................20mA (max.)Threshold ..............................................configurable in 8 levelsInput impedance.............................................................25ΩOpen circuit current .................................................< 0.5mAShort circuit current................................................> 21.5mAVOLTAGEInput signal ...........................................0 - 24V dc (50V max.)Threshold ..............................................configurable in 8 levelsInput impedance ........................................................> 10kΩSwitching hysteresis.................................................. 100mVSWITCHInput voltage range..............................................0 – 10V dcOUTPUTS (TX SUPPLY)The outputs are open-collector type for separately powereddevices such as LED clusters, annunciators or solenoidsNumber of channels ...........................................................2OFF state voltage ..................................................30V (max)OFF state leakage current ...................................10µA (max)ON state voltage drop..................................< 1.0V @ 50mAON state current.........................................................100mARetransmission bandwidth ...............................1 – 2000HzEUROPE (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