YOKOGAWA UP750, Руководство пользователя

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<Toc> <6. Parameters>
6-15
IM 05E01B02-41E 1st Edition : May 31,2000-00
●
Control Action-related Parameters
Located in: Main menu =
PARA
; Submenu =
CTL
Output velocity
limiter OFF (0)
0.1 to 100.0%/sec.
can limit control output velocity OFF (0)
OPR1
AUTO (0)
PID control mode 0: Standard PID control (with output bump at SP change)
1: Fixed-point control (without output bump at SP change)
Choose “Fixed-point Control” when controlling pressure or flow rate. 0
Anti-reset windup
(Excess integration
prevention) AUTO (0), 50.0 to 200.0%
The larger Setting, the sooner PID computation (integral computation) stops.
Used when the control output travels up to 100% or down to 0% and
stays at this point.
MOD1
AR1
Zone PID selection 0: Segment PID
1: Zone PID
If set to “Segment PID,” allows PID constants to be selected for each
segment.
If set to “Zone PID,” automatically selects PID constants according
to the temperature range set in the given Reference Point parameter. 1
ZON
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
Ref.2.1(2)
Ref.2.1(4)
Ref.5.1(2)
Ref.5.1(2)
Restart mode CONT (0): Continues action set before power failure.
MAN (1): Starts from manual operation status
RESET (2): Continues action set before power failure and starts computation
from the preset output value. CONT (0)
R.MD
PID group number Allows you to determine how many groups of setpoint, alarm and
PID parameters the controller should show.
1: Show one set. 2: Show two sets.
3: Show three sets. 4: Show four sets.
5 to 8: Show as many groups of parameters as have been set.
8
Zone PID reference
point-1
Zone PID reference
point-2
Zone PID reference
point-3
Zone PID reference
point-4
Zone PID reference
point-5
Zone PID reference
point-6
0.0 to 100.0% of PV input range.
Note that 1.RP1
2.RP1 3.RP1 4.RP1 5.RP1 6.RP1.
Sets reference points at which switching is carried out between groups
of PID constants according to the given temperature zone. You can set
a maximum of six reference points and therefore a maximum of seven
temperature zones.
The example below sets reference points 1 and 2 to provide 3 zones to
switch PID constants automatically.
100.0% of
PV input
range
GRP
1.RP1
2.RP1
3.RP1
4.RP1
5.RP1
6.RP1
Time
Maximum value of
PV input range
RH1
Reference point 2
2.RP1
Minimum value of
PV input range
RL1
Reference point 1
1.RP1
Zone 3
The controller is operated with
the 3rd group of PID constants.
Zone 2
The controller is operated with
the 2nd group of PID constants.
Zone 1
The controller is operated with
the 1st group of PID constants.
PV input
value
Setpoint
Restart timer 0 to 10 sec.
Sets time between power on and the instant where controller
starts computation. 0 sec.
R.TM