SU2020 SU8020 SU2021 SU8021 SU2621 SU8621
Ultrasonic flow meter
34
[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].