H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015 53I/O modules Parts of the H-S81-HS System2.4.3 S81-F4002-1 & S81-F4002-2DescriptionSafety related module with 2 x 4-20mA analog inputs and two thresholds to beprogrammed on the module through the operator cycle. The following transducertypes can be connected to this module: Explosion Sensors, Air Quality Sensors,Oxygen Sensors, Temperature Sensors, 4-20mA General Sensors. The channel iscontinuously tested during operation. The module features 4-20mA outputs thatprovide the current value measured on the input. The analog value of each chan-nel can be transferred to a DCS by means of the S81-F7006-1 Modbus RTUmodule. This module can be duplicated for fault tolerant systems; in this case,the two modules shall be placed on two adjacent racks in the same position. Inthis configuration, the two detection lines are connected to both modules.Technical FeaturesStatus IndicationsModule front panel includes three LEDs and a three-digit display for each channel.Three-Digit DisplayThe three-digit display generally shows the measured value in the programmed format. Moreover,it shows some fault codes according to the following table.• Safety rating: applicable up to SIL3• Redundancy: S81-F4002-2 model• Alarm threshold: 2 programmable• Channel test: continuously tested• Measuring range 0-24mA• Line short circuit condition: with current >23.5mA• Supply voltage: 22-29VDC• Quiescent current: 60mA• Operating temperature: -5 - 50 °C• Storage temperature: -30 - 80 °C• Maximum humidity: 95% (RH) non-condensing• Hot swap capability: yesInput channel status 2nd Level 1st Level Fault/DisabledRed LED Red LED Yellow LEDNormal − − −Disabled − − ⊗Trouble − − ¬Pre-alarm ⊗ ⊗ −Alarm ⊗ − −Key to symbols: ⊗= steady on LED; − = LED off; ∅= flashing LEDNo. Channel Status--- Initialization stageF00 Module/channel not configuredF01 Line opening (current <1mA)F02 Over current (current >23.5mA)F03 Internal test failedFx.x Device trouble 11 For current values lower than the set trouble threshold and exceeding 1mA, the displaywill show the value of the measured current in mA preceded by letter F. Please refer tothe manual of the connected device for identifying the type of anomaly.E00 Memory data error CRC+/-999 Measured value
