IFM SU2020 - Error Behaviour of the Outputs

SU2020 SU8020 SU2021 SU8021 SU2621 SU8621 Ultrasonic flow meter
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[FSP1] is only available for temperature measurement.
10.3.6 Error behaviour of the outputs
The response of the OUTx output in case of a fault can be set via the parameter [FOUx]. Depending
on the selected output function, the following signals are provided in case of a fault:
• Switching signal:
[FOUx] Process values [SELx] Output signal Explanation
On All process values The output switches ON in case of a
fault.
As soon as a defective process value
is present, the unit sets all process val-
ues to invalid.
OFF All process values The output switches OFF in case of a
fault.
OU Flow The output switches OFF in case of a
fault.
If the process value “Flow” is defective,
the unit continues to provide the pro-
cess value “Temperature”.
Temperature The output switches ON in case of a
fault.
If the process value “Temperature” is
defective, the unit continues to provide
the process value “Flow”.
• Analogue signal:
[FOUx] Process values [SELx] Output signal Explanation
On All process values In case of an error the output goes to
21.5mA.
As soon as a defective process value
is present, the unit sets all process val-
ues to invalid.
OFF All process values In case of an error the output goes to
3.5mA.
OU Flow In case of an error the output goes to
3.5mA.
If the process value “Flow” is defective,
the unit continues to provide the pro-
cess value “Temperature”.
Temperature In case of an error the output goes to
21.5mA.
If the process value “Temperature” is
defective, the unit continues to provide
the process value “Flow”.
• Frequency signal:
[FOUx] Process values [SELx] Output signal Explanation
On All process values In case of an error the output goes to
130% of [FrPx].
As soon as a defective process value
is present, the unit sets all process val-
ues to invalid.
OFF All process values In case of an error the output goes to
0Hz.
OU Flow In case of an error the output goes to
0Hz.
If the process value “Flow” is defective,
the unit continues to provide the pro-
cess value “Temperature”.
Temperature In case of an error the output goes to
130% of [FrPx].
If the process value “Temperature” is
defective, the unit continues to provide
the process value “Flow”.
The parameter [FOU] has no influence on the pulse signal, the diagnostic signals for flow
direction and signal quality and the IO-Link process data transmission.
10.3.6.1 Parameter setting via unit keys: error behaviour of the outputs
u Go to the [EF] > [OUTx] menu.
u Select [FOUx] and set the error behaviour for OUTx: [On], [OFF], [OU].