Autonics DPU Series, Manual

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Digital Thyristor Unit
E-13
A.•Recorder
B.•Indicator
C.•Converter
D.•Controller
E. Thyristor
unit
F.•Pressure•
••••transmitter
G.•Temp.•
•••••transmitter
H.•Accessories
DPU
Proportional and integral constant set of
feedback control
● HOLD [
HOLD
]
● Single SP [
SP-1
,
SP-2
,
SP-3
]
● Multi SP [
SP-M
]
Set•[•
SP-1
,•
SP-2
,•
SP-3
]•to•each•digital•input•for•
output•to•reach•to•the•relevant•SP.••
It•is•available•to•set•individually•at•[•
DI-1
,•
DI-2
,•
DI-3
],•and•duplicated•setting•is•allowed.
When•setting•
SP-1
,,•SP1•is•displayed•in•operating•
mode,•same•as•
SP-2
and•
SP-3
.•
When•this•function•is•not•set,•the•parameters•to•set•
SP•in•operating•mode•are•not•displayed.
It•is•available•to•set•total•6•SPs•and•to•control•output•
depending•on•3•digital•inputs'•setting.•
This•function•is•selectable•only•in•[•
DI-1
].•When•
selecting•[•
SP-M
]•at•[•
DI-1
],•[•
DI-2
,•
DI-3
]•
parameters•are•not•displayed.•
When•selecting•[•
SP-M
]•at•[•
DI-1
],•6•parameters•to•
set•SPs•are•displayed•in•operating•mode.
(•
SP-1
,•
SP-2
,•
SP-3
,•
SP-4
,•
SP-5
,•
SP-6
)
Proportional•Integral•Control:•
This•is•the•combination•of•proportional•control•and•integral•
control.•Proportional•control•operates•soft•control•without•
overshoot•and•hunting•for•the•set•value.•Integral•control•
modifies•offset•automatically•to•reach•the•set•value•stably.•
The•optimal•values•of•proportional•constant•and•integral•
constant•are•set•as•factory•defaults.•When•changing•
proportional•constant•and•integral•constant,•it•may•cause•
response•delay•in•feedback•control•or•overshoot•or•
hunting.•
After•selecting•HOLD•function•and•digital•input•is•
ON(close),•output•and•display•value•of•this•unit•is•
hold.•(it•operates•hold•when•digital•input•maintains•
ON(close)•status.)•
٧ ٧
Proportional constant set [
P
]
It•compensates•error•from•the•target•value•
proportionally.•
If•proportional•constant•value•is•small,•response•is•fast•
and•it•may•cause•overshoot•or•hunting.•If•proportional•
constant•value•is•big,•response•is•slow.•
•
•
Set•range•:•0(0%)•to•2000(100%)
DI-1 DI-2 DI-3
Operating•Mode
SP•value•set•parameter
SP-1 SP-2 SP-3
SP-1
(ex:20%)
SP-2
(ex:40%)
SP-3
(ex:60%)
※
•Ex)
※
•Ex)
DI-1 DI-2 DI-3
Operating•Mode
SP•value•set•
parameter
A ○ × × SP-1
(ex:20%)
B × ○ × SP-2
(ex:40%)
C ○ ○ × SP-3
(ex:60%)
D × × ○ SP-4
(ex:80%)
E ○ × ○ SP-5
(ex:100%)
F × ○ ○ SP-6
(ex:0%)
G ○ ○ ○
-
※
•○:•Close,•×:•Open
٧ ٧
Integral constant set [
I
]
※
•
P
,•
I
parameters•are•displayed•when•control•mode•is•
static•voltage,•static•current,•static•power•mode•in•phase•
control.•
It•compensates•cumulative•error•from•the•target•value.••
The•set•integral•constant•is•the•time•when•proportional•
value•and•integral•value•are•equal.•
If•integral•constant•value•is•small,•response•is•fast•and•
it•may•cause•overshoot•or•hunting.•If•integral•constant•
value•is•big,•response•is•slow.•
•
•
Set•range•:•0.1•to•999.9•sec.
Input correction [
IN-B
]
It•compensates•the•offset•between•actual•input•value•and•
measured•input•value.•
•
•
Set•range•:•-99.9•to•99.9%
※
•Ex)•Input•type•is••4-20mA,
•••When•4mA•is•applied•and•the•input•monitor•value•
displays,•set•[•
IN-B
]•as
-)5
and•the•input•monitor•
value•displays•as•0.0%.
••A•:•When•
DI-1
•is•ON
••B•:•When• DI-2 •is•ON
••C•:•When• DI-3 •is•ON
Output•
(%)
※
•A,•B,•C,•D,•E,•F
•••:•Close/Open•status•of•Digital•Input
Output•
(%)
Actual•input•signal(%)
Input•corrected•signal(%)
Output•
input•signal•
(%)
Actual•input•signal•(%)