YOKOGAWA UT750 - Page 77

<Toc> <5. Parameters>
5-9
IM 05D01B02-41E 1st Edition : May 31,2000-00
Ref.2.1(8)
Ref.4.1(1)
Ref.4.1(1)
Parameter
Symbol
User
Setting
Name of Parameter Setting Range and Description Initial Value
Target Item
in CD-ROM
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.Pc
1.Ic
1.Dc
1.Hc
1.DB
1.PO
1.Oc
0.0 to 999.9%
(Cooling-side ON/OFF control applies when 0.0)
5.0%
OFF (0), 1 to 6000 sec. 240 sec.
60 sec.OFF (0), 1 to 6000 sec.
0.0 to 100.0%
In heating/cooling control: -100.0 to 50.0%
In position proportional PID control: 1.0 to 10.0%
• 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.
• When performing position proportional control:
set the range so none of the outputs turn on.
3.0%
0.5%
-5.0 to 105.0%
In heating/cooling control: Heating-side 0.0 to 105.0%
In Stop mode, fixed control output can be generated.
0.0%
0.0 to 105.0%
In Stop mode, cooling-side fixed control
output can be generated.
0.0%
If you are using two or more groups of setpoint, alarm and PID parameters, use the follow-
ing table to record their values.
Parameter
n.SP
n.A1
n.A2
n.A3
n.A4
n.P
n.I
n.D
n.OH
n.OL
n.MR
n.H
n.DR
n.Pc
n.Ic
n.Dc
n.Hc
n.DB
n.PO
n.Oc
n=2 n=3 n=4 n=5 n=6 n=7 n=8