Program Controller SE-707
© 2018 by STANGE Elektronik GmbH
Subject to technical modifications
119
NOTE:
•
When using redundant actual values for one control zone it is important that these actual values have a steady
behaviour related to their time behaviour, i.e. for actual values the same type of actual input card should be used
preferably.
•
It is very important to have the same number of average value setting of actual values because this has a direct
influence on the time behaviour!
•
The controller function outputs for “actual value break” (FO989 ..) and “tolerance alarm” (FO990 ..) have no own time
delay. They are updated with each controller sampling cycle. I.e. the alarm evaluation should be equipped with
corresponding delay time in order to prevent short-term reactions on actual value transients!
Behavior of a controller and the function outputs by means of examples (tolerance set to 10 °C):
Controller
actual
value
Add.
actual
value 1
Add.
actual
value 2
Add.
actual
value
Actual
value used
for control
FO AV-
break
controller
actual
value
FO AV-
break
add.
actual
value 1
FO AV-
break
add.
actual
value 2
FO AV-break
replacement
actual value
FO (989)
actual
value
break
FO (990)
tolerance
alarm
500
505
450
502.5
OFF
OFF
OFF
OFF
OFF
500
520
450
510.0
OFF
OFF
OFF
OFF
ON
Break
505
450
505.0
ON
OFF
OFF
OFF
OFF
Break
Break
450
450.0
ON
ON
OFF
ON
OFF
Break
Break
Break Max repl.
AV
ON
ON
ON
ON
OFF
Break
Break
Max aver.
value
ON
ON
ON
OFF
500
505
507
450
504.0
OFF
OFF
OFF
OFF
OFF
OFF
516
505
507
450
509.3
OFF
OFF
OFF
OFF
OFF
ON
520
505
507
450
506.0
OFF
OFF
OFF
OFF
OFF
ON
500
520
507
450
503.5
OFF
OFF
OFF
OFF
OFF
ON
500
505
520
450
502.5
OFF
OFF
OFF
OFF
OFF
ON
500
520
550
450
523.3
OFF
OFF
OFF
OFF
OFF
ON
Break
505
507
450
506.0
ON
OFF
OFF
OFF
OFF
OFF
Break
505
520
450
512.5
ON
OFF
OFF
OFF
OFF
ON
Break
Break
507
450
507.0
ON
ON
OFF
OFF
OFF
OFF
Break
Break
Break
450
450.0
ON
ON
ON
OFF
ON
OFF
Break
Break
Break
Break Max repl.
AV
ON
ON
ON
ON
ON
OFF
Break
Break
Break
Max. aver.
value
ON
ON
ON
ON
OFF
The colored highlighted fields have to be considered particularly.
Содержание SE-707
Страница 179: ...SE 7xx REFERENCE LISTS Function Inputs FI 2 ...
Страница 208: ...SE 7xx REFERENCE LISTS Function Outputs FO 2 ...