ABB AWT420 Operating Instruction

Also see for AWT420: Commissioning instructions Manual Manual

Contents

ABB AWT420 Operating Instruction Manual pdf 23 page image

AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | O I/A W T4 2 0 - E N R E V. B23Sensor replacementA sensor can be replaced by a sensor of the same type or adifferent type. If a sensor is replaced by one of the same type,the sensor setup parameters from the sensor being removedcan be retained (see page 23) for use with the new sensor, orset to use the values stored in the new sensor.Replacing the sensor with a sensor of the same typeTo replace a sensor of the same type and retain existing sensorsetup parameters:1 Disconnect the old sensor from the EZLink connector – seepage . The diagnostic message S1 (to 2):Removed isdisplayed in the status bar at the bottom of the mainOperator page.NOTICETo retain existing transmitter setup parameters for usewith the new sensor:Do not acknowledge sensor removal after the S1(to 2):Removed warning is displayed. If sensor removalis acknowledged, the transmitter configuration for thechannel is reset to factory defaults.To maintain the value of analog, digital and relay outputsduring sensor replacement, press the key and selectManual Hold from the Operator page menu.If a failure current has been configured for an analogoutput, the output’s value is not held. Sensor removal isclassed as a failure by the diagnostic system and thisoverrides the existing analog output current.2 Connect the new sensor to the same EZLink connector –seepage . A user prompt is displayed asking whichconfiguration to use:3 Press the (TX) to use the sensor configuration saved inthe transmitter (used with the sensor previously connected)or press the key (Sensor) to use the sensor configurationstored in the new sensor.The Easy Setup prompt is displayed:4 Press the key ( ) to cancel Easy Setup and startmeasurement using the sensor immediately, or pressthe key ( ) to edit the sensor configuration usingthe Easy Setup menu – see page 21.Replacing a sensor with a sensor of a different typeTo replace a sensor with a sensor of a different type:1 Disconnect the old sensor from the EZLink connector – seepage . The diagnostic message S1 (to 2):Removed isdisplayed in the status bar at the bottom of the mainOperator page.2 Press the key and select Ack Sensor Removed from theOperator page menu to reset the transmitter configurationparameters for this sensor to factory default values.3 Connect and configure the new sensor as described onpage 22.AWT420 03-09-201908:14:45New Sensor S1 (to 2)DetectedUse sensor cfg?Use TX cfg?Tx SensorAWT420 03-09-201908:14:45Sensor S1 (to 2)DetectedStart EasySetup ?