172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021
189
Event 3 hold action [Engineering Mode: Function block No. 43 (
Fn43
)]
Parameter symbol
Data range
Factory set value
EH O 3
0: Hold action OFF
1: Hold action ON
2: Re-hold action ON
Setting hold or re-hold action on the event that is not available
with hold and re-hold actions will just be ignored.
0
Event 4 hold action [Engineering Mode: Function block No. 44 (
Fn44
)]
Parameter symbol
Data range
Factory set value
EH O 4
0: Hold action OFF
1: Hold action ON
2: Re-hold action ON
Setting hold or re-hold action on the event that is not available
with hold and re-hold actions will just be ignored.
0
7.1.4 Setting a differential gap in event action
Description of function
When the measured value (PV) is around the Event set value, event output relay
connections sometimes switch frequently between ON and OFF due to an unstable
input signal. This prevents chattering of event output due to the measured value
fluctuation around the Event set value.
Parameter setting
Event 1 differential gap [Engineering Mode: Function block No. 41 (
Fn41
)]
Parameter symbol
Data range
Factory set value
EH 1
Deviation, Process and SV:
If event assignment is set to either Input 1 or Differential
temperature.
0 to Input 1_Input span
(When Control with PV select: 0 to PV select input span)
If event assignment is set to Input 2
0 to Input 2_Input span
[Varies with the setting of the Decimal point position.]
MV: 0.0 to 110.0%
Deviation, Process and SV:
TC/RTD inputs: 2
V/I inputs: 0.2% of input
span
MV: 0.2
Event 2 differential gap [Engineering Mode: Function block No. 42 (
Fn42
)]
Parameter symbol
Data range
Factory set value
EH 2
Same as Event 1 differential gap
Deviation, Process and SV:
TC/RTD inputs: 2
V/I inputs: 0.2% of input
span
MV: 0.2
Содержание SC-F71
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Страница 293: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 292 Checking PID values ...
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Страница 359: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 358 Setting Procedure Setting Soft start function ...
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