YOKOGAWA UT750, Инструкция по эксплуатации

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5-8
<Toc> <5. Parameters>
IM 05D01B02-41E 1st Edition : May 31,2000-00
●
Setpoint-, Alarm- and PID-related Parameters
Located in: Main menu =
LP1
; Submenu =
1.PID
The table below lists the Target Setpoint-1 (1.SP) operating parameter and parameters that
apply to the 1.SP parameter.
1.P
Ref.4.1(1)
Ref.4.1(1)
Ref.2.1(3)
Ref.4.1(1)
Ref.2.1(1)
Ref.4.1(1)
Parameter
Symbol
User
Setting
Name of Parameter Setting Range and Description Initial Value Target Item
in CD-ROM
Target setpoint-1
Alarm-1 setpoint
Alarm-2 setpoint
0.0 to 100.0% of PV input range
However, between target setpoint limiter lower
limit (SPL) and upper limit (SPH) 0.0% of PV input range
PV high limit/SP high
limit alarm: 100.0% of
PV input range
Deviation alarm: 0.0% of
PV input range span
Other PV/SP low limit
alarm: 0.0% of PV input
range
Output high limit
alarm: 100.0%
Output low limit
alarm: 0.0% PV alarm / SP alarm: -100.0 to 100.0% of PV
input range
Deviation alarm: -100.0 to 100.0% of PV input
range span
Output alarm: -5.0 to 105.0%
Timer alarm (for alarm-1 only):
0.00 to 99.59 (hour, min.) or (min., sec.)
Allows alarms 1 to 4 (1.A1 to 1.A4) to be set for
target setpoint 1 (1.SP).
Four alarms can also be set for target setpoints
2 to 8.
1.SP
1.A1
1.A2
Alarm-3 setpoint
Alarm-4 setpoint
1.A3
1.A4
Integral time
Heating-side integral time
(in heating/cooling control)
1.I
OFF (0), 1 to 6000 sec. 240 sec.
Derivative time
Heating-side derivative time
(in heating/cooling control)
Output high limit
Heating-side output high limit
(in heating/cooling control)
Output low limit
Cooling-side output high
limit (in heating/cooling
control)
Manual reset
ON/OFF control hysteresis
Heating-side ON/OFF
control hysteresis
1.D
1.OH
1.OL
1.MR
1.H
Direct/reverse action
switching
1.DR
OFF (0), 1 to 6000 sec. 60 sec.
-5.0 to 105.0%
Heating-side limiter in heating/cooling control:
0.0 to 105.0% (1.OL < 1.OH) 100%
Heating/cooling
control: 100.0%
0.0%
Heating/cooling
control: 100.0% -5.0 to 105.0%
Cooling-side limiter in heating/cooling control:
0.0 to 105.0% (1.OL < 1.OH)
SD (shutdown): Set in manual operation in
4-20 mA control output.
-5.0 to 105.0%
(enabled when integral time “1.I” is OFF)
The manual reset value equals the output value
when PV = SP is true. For example, if the
manual reset value is 50%, the output value is
50% when PV = SP becomes true.
50.0%
In ON/OFF control: 0.0 to 100.0% of PV input range span
In position proportional PID control or heating/cooling
control: 0.0 to 100.0%
Hysteresis can be set in the target setpoint when the
controller is performing ON/OFF control.
ON/OFF control: 0.5%
of PV input range span
Position proportional
PID control and
heating/cooling control:
0.5%
REVERSE (0): reverse action, DIRECT (1): direct action REVERSE (0)
Point of
ON/OFF action
(Target setpoint)
Hysteresis
PV value
Output
On
Off
Deviation
(PV-SP)
+
-
Direct
action
Reverse
action
Control output
0%
100%
Proportional band/Heating-
side proportional band
(in heating/cooling control) 0.1 to 999.9%
In heating/cooling control: 0.0 to 999.9%
(heating-side on/off control applies when 0.0) 5.0%