Input/Output - ABB Navigator 550 Operating Instructions Manual

Navigator 500
Hydrazine analyzer

7.1.5 Input/Output

Menu
Input/Output
Select
Exit
Menu
Analog Outputs
Analog Output 1 to 4
Source
Output Type
Elec Low
Elec High
Eng Low
Eng High
Output Failure
Failure Current
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Input/Output level enables configuration of analog outputs, digital inputs and outputs and relays.
Comment
The analog outputs can be configured to retransmit the process
variable and temperature values and have a configurable range from 0
to 22 mA.
Analog Outputs 3 and 4 are available only if an option board is fitted –
see page 18.
Selects the analog signal to be assigned to the output –
see Table 7.1, page 52.
Selects the output type required:

Linear

Log 2 Decades

Log 3 Decades

Log 4 Decades
The maximum and minimum engineering range output value
(0 to 22 mA range).
The maximum and minimum engineering range output value.
If the Output Type selection is logarithmic the Eng Low value is set
automatically to 2, 3 or 4 decades below the Eng High value.
When enabled, the current output can be driven to a preset value if a
Failure category diagnostic state occurs for the selected source – see
page 63.
Sets a preset value the current output is driven to when a Failure
category diagnostic state is present. – see page 63.
Note. Active only if Output Failure is Enabled.
Default
None
Linear
4 mA
20 mA
0
20,000
Enabled
22.0
OI/AHM550–EN Rev. A