Honeywell Excel 800 LION Installation And Commissioning Instructions

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Honeywell Excel 800 LION Installation And Commissioning Instructions Manual pdf 74 page image

Excel 800 LIONEN1B-0375GE51 R0308 74LED Test for I/O Modules► Press the service button S1 of the I/O module, e.g. using a paperclip.– The service LED and all other LEDs of that Panel Bus I/O module light up for as long as the service button is pressed.LED Correct behaviorPower LED ON continuously (if it flashes, check the 24 VAC power supply)Service LED ON continuouslyAnalog output module status LEDs ON continuouslyRelay output module status LEDs ON continuouslyDigital input module status LEDs Red -> green -> yellow -> red -> green -> yellow, cyclically every 0.5 secTable 76 Effects of pressing and holding down service button of I/O modulesAn LED is defective if it is not lit as shown above.Analog Input Modules Troubleshootingcase Problem Possible causes RemedyWrong sensor configuration ► Reconfigure sensorIncorrect wiring ► RewireSensor failure ► Replace sensor1 Incorrect sensormeasurementNegative voltage on at least one channel ► Check polarity of active sensorinputs.2 Unstable sensormeasurementsIncorrect grounding of active sensors ► Ground active sensors individually(see Fig. 62 and Fig. 63 on page 43and following)3 a voltage of about8.88 V(*) is measured(with an external volt-meter) at an open analoginput configured for:NTC20kΩ orPt1000-1/-2 orPt3000 orBalco 500 orNTC10kΩ orNI1000TK5000.Sensor is not connected ► Connect the configured sensor4 a voltage of about8.88 V(*) is measured(with an external volt-meter) at an open analoginput configured for:0…10V with pull-up orslow Digital InputNormal value for open input that is configuredto listed types ► No action necessary(*): voltage may differ slightly depending on the input impedance of the used voltmeterTable 77 Failure modes of analog input modules