ABB AWT420 Operating Instruction

Also see for AWT420: Commissioning instructions Manual Manual

Contents

ABB AWT420 Operating Instruction Manual pdf 41 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. B41Input/OutputUsed to enable configuration of analog outputs, digital inputs and outputs and relays.Menu Comment DefaultAnalog Outputs The analog outputs can be configured to retransmit the process variable and temperature values andhave a configurable range from 0 to 22 mA.HART Curr OutPV Range HiPV Range LoOutput ValueFailure CurrentSee Communications Supplement COM/AWT420/HART-EN.Analog Output 1 (to 4) Analog outputs 3 and 4 are available only if an option board is fitted – see page 13.Source Select the sensor signal to be assigned to the output. NoneOutput Type See page .Elec High *Elec Low *The output characteristic is selectable dependent on sensor type.Eng High *Eng Low *Set the minimum and maximum electrical range output values within the range 0.00 to 22.00 mA.Output Failure * Set the minimum and maximum engineering range output values within the range of measurementpermitted by the sensor selected as the source.EnabledFailure Current** Select to enable/disable the output failure function.When enabled, the current output can be driven to a preset value if a Failure category diagnosticstate occurs for the selected source – see page 34.22.0CalibrateAOP1(4) Trim 4 mAAOP1(4) Trim 20 mAAdjust 4 mA (use the / keys to set the mA reading to 4 mA).Adjust 20 mA (use the / keys to set the mA reading to 20 mA).Digital I/O See page 13 for digital I/O connections.Type Select the Digital I/O type:• Off.• Input.• Output.OffSource Select the digital signal to be assigned to the input/output – see page . NonePolarity Sets the polarity of the digital input/output signal – see Table 5, page 42. Non InvertedRelaysRelay 1 (to 4)Source Selects the digital signal to be assigned to the relay – see page . NonePolarity Sets the polarity of the relay output – see Table 6, page 42. Non Inverted* Displayed only if Source is NOT set to None** Displayed only if Output Failure is set to EnabledInput/OutputExitMenuSelect