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①
Linear control range
②
Measuring range lower limit
③
Measuring range upper limit
④
Lower fault current value
⑤
Recommended setting range for lower fault current
⑥
Recommended setting range for upper fault current
⑦
Measuring range
Figure 8-2
Current limits for NAMUR configuration
The fail safe current output signal can be selected to:
● Minimum Current (defined in the Current Mode selection)
● Maximum Current (defined in the Current Mode selection)
● Last Good Value (the last process value before the failure occurred)
● Current Value (actual measured value)
● User defined (within the range of 0 mA to 25 mA
1)
)
1)
For channel 1 the range is 3.5 mA to 25 mA
In the alarms lists inDevice status symbols (Page 167) it is listed which alarms bring the output
to fail safe current.
Output scaling configuration
Below are four examples describing configuration possibilities for a current output.
Parameter assignment
8.2 Functions
SITRANS FC330
136
Operating Instructions, 01/2019, A5E44030648-AB