Omega Vehicle Security CN3271 Series manual Serial Communication Interface Option, Maintenance

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Band alarm

Operative mode: Inside or outside band programmable.

Threshold: programmable from 0 to 500 units.

Hysteresis : programmable from 0.1 % to 10.0 % of the readout span.

Deviation alarm

Operative mode : High or low programmable.

Threshold : programmable from - 500 to +500 units.

Hysteresis : programmable from 0.1 % to 10.0 % of the readout span.

SERIAL COMMUNICATION INTERFACE (OPTION)

Type: insulated RS-485.

Protocol type: MODBUS or JBUS.

Baud rate: programmable from 600 to 19200 BAUD.

Byte format: 8 bit.

Parity: even, odd or none programmable.

Stop bit: one.

Address: from 1 to 255.

Output voltage levels: according to EIA standard.

MAINTENANCE

1)REMOVE POWER FROM THE POWER SUPPLY TERMINALS AND FROM RELAY OUTPUT TERMINALS

2)Remove the instrument from case.

3)Using a vacuum cleaner or a compressed air jet (max. 3 kg/cm2) remove all deposit of dust and dirt which may be present on the louvers and on the internal circuits trying to be careful for not damage the electronic components.

4)To clean external plastic or rubber parts use only a cloth moistened with:

-Ethyl Alcohol (pure or denatured) [C2H5OH] or

-Isopropil Alcohol (pure or denatured)

[(CH3)2CHOH] or

- Water (H2O)

5)Verify that there are no loose terminals.

6)Before re-inserting the instrument in its case, be sure that it is perfectly dry.

7)re-insert the instrument and turn it ON.

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Contents CN3271-add2.pmd 19/08/2004 OMEGAnet On-LineService Internet e-mail Info@omega.com Contents Mounting Requirements Screw Bracket PanelWithout RS-485 With RS-485 Dimensions and Rear Terminal BlocksPanel Cutout Wiring Guidelines RTD Input Linear Input MA, mV and V Inputs WiringUse cupper conductors only Logic Input for models with RS-485 onlyRelay Outputs OUT 1 ClassSerial Interface Inductive Loads500 mA 250 100/240 V AC 125 mA Power Line and groundingAA/A 100 to 240 VacHigh Low Limiter without RS-485 High Low Limiter with RS-485Configuration KEY Functions Configuration ProcedureSerial Interface Protocol Value R2 = Decimal Point Position R5 = Offset AdjustmentR7 = Alarm action on input fault TypeHi.Lo = High and low limit for special process C2 = Rearming Mode= Shutdown memory = Rearm at Power-up Auto = Automatic rearmConstant Alarm Function = Alarm configurationP3 = Alarm Action Example for P2 = H.A.A.cExample for P2 = H.L Alarm Standby mask Function = Safety LockT1 = Timeout Selection Normal Display Mode Operating ModeOperative Parameter Display Mode IndicatorsFlashes when alarm is on Normal Display Mode to Operative Parameter Display ModeOperating Parameters Example 1 C1 = Hi and C2 = O Example 2 C1 = Hi and C2 = Limiter functionAlarm functions Serial LInk optionalDevice can be connected to a host computer via serial link Dealing with Error Messages Error MessagesError Messages Error ListTemperature Drift CJ excluded General SpecificationsPower consumption 8 VA Common mode rejection ratioLinear Inputs Inputs ThermocoupleOutput AlarmLogic Inputs OutputsSerial Communication Interface Option MaintenanceDefault Operating Parameters List Default ParametersLHL-A-NEUTRO.pmd 19/04/2004 Second Seconds Appendix A.3 Appendix B Thermocouple Compensating Cable Color Codes Return Requests / Inquiries Data Acquisition