21
【 Fuzzy Function 】
PV
Target SV
Subsidiary target SV
PV
Start FUZZYreasoning
Time
8-1-6. Control Setup Group
Signal
Item
Setup range
Display condition Initial value
Control setup group
Setup below items.
Fuzzy function
selection
OFF/ON
Except
ON / OFF
OFF
Time unit selection
HH.MM (00 hr. 00 min.)
MM.SS (00 min 00 sec.)
Always
HH.MM
Wait zone setup
OFF/0~max. range
OFF
Wait time setup
OFF / 0.01~99.59
OFF
Power recovery
motion mode
COOL / HOT
COOL
1) Selection of Fuzzy Function :
Fuzzy function is an over shoot inhibitory function using the fuzzy reasoning. Fuzzy function can provide
control effects in the following situations
· Starting the control when there are variation between the desired set value and actual process value
· Wanting to reduce the operative preheating period
· Having severe load changes
· Having frequent changes to set value
2) Selection of Time Unit :
Maximum of 99 hours 59 minutes or 99 minutes 59 seconds can be selected in the setup item for the
selection of time unit.
3) Setup of Wait Zone :
Process value must agree in accord to the process of programmed set value in program temperature
controller but unpredicted events occur. Here, if the temperature variation set in the wait zone when
moving segments, program can continue on to the next segment. However, if it is outside the
variation range, it doesn’t move on from the current segment to the next segment but rather waits until it
enters the set range of wait zone.
4) Setup of Wait Time :
When the process value doesn’t agree with the progress of the programmed set value in the
program temperature controller, in other words, when the process value is not controlled within the range
of set variation between the set value + the wait zone, program continues on when the wait time elapses.
5) Power Recovery Motion Mode :
Can choose between COOL or HOT in the set up item. If COOL is selected, the system resets when
recovered from the power failure and if HOT is selected, it continues on from the segment operated just
before the failure.
※ However, must start from the beginning of the segment even if the system recovers to the segment just
operated before the power failure.
