YOKOGAWA UP750, User Manual

Page: 100 / 130

6-8
<Toc> <6. Parameters>
IM 05E01B02-41E
●
PID-related Parameters
Located in: Main menu =
LP1
; Submenu =
1.PID
1.P
Proportional band/Heating-
side proportional band
(in heating/cooling control) 0.1 to 999.9% of PV input range
In heating/cooling control: 0.0 to 999.9%
(heating-side on/off control applies when 0.0) 5.0%
Integral time
Heating-side integral time
(in heating/cooling control)
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)
1.I
1.D
1.OH
1.OL
OFF (0), 1 to 6000 sec.
OFF (0), 1 to 6000 sec.
240 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. Output is 0 mA.
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
Ref.2.1(3)
Ref.2.1(1)
Ref.2.1(8)
Manual reset
1.MR
-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%
Point of
ON/OFF action
(Program setpoint)
Hysteresis
PV value
Output
On
Off
Deviation
(PV-SP)
+
-
Direct
action
Reverse
action
Control output
0%
100%
ON/OFF control hysteresis
Heating-side ON/OFF
control hysteresis
(in heating/cooling control)
1.H
Direct/reverse action
switching
Cooling-side
proportional band
Cooling-side integral
time
Cooling-side derivative
time
Cooling-side ON/OFF
control hysteresis
Dead band
Preset output/Heating-
side preset output
(in heating/cooling control)
Cooling-side preset
output
1.DR
1.Pc
1.Ic
1.Dc
1.Hc
1.DB
1.PO
1.Oc
ON/OFF control: 0.5%
of PV input range span
Heating/cooling control:
0.5%
REVERSE (0): reverse action, DIRECT (1): direct action REVERSE (0)
0.0 to 999.9% of PV input range
(Cooling-side ON/OFF control applies when 0.0) 5.0%
OFF, 1 to 6000 sec. 240 sec.
60 sec. OFF, 1 to 6000 sec.
0.0 to 100.0%
In heating/cooling control: -100.0 to 50.0% 3.0%
0.5%
-5.0 to 105.0%
In RESET mode, fixed control output can be generated.
In heating/cooling control: Heating-side 0.0 to 105.0% 0.0%
0.0 to 105.0%
In RESET mode, cooling-side fixed control
output can be generated. 0.0%
In ON/OFF control: 0.0 to 100.0% of PV input range span
In heating/cooling control: 0.0 to 100.0%
• When performing heating/cooling control:
setting any positive value prohibits both the heating
and cooling outputs from turning on; setting any
negative value allows both the heating and cooling
outputs to turn on; and setting a value of zero
either the heating or cooling output to turn on.
Hysteresis can be set in the program setpoint when
the controller is performing ON/OFF control.
1st Edition : May 31,2000-00