YOKOGAWA UT520 User Manual

<Toc> < 5. Parameters >
5-7
IM 05D01C02-41E 3rd Edition: May 31, 2006-00
● Operation-related Parameters
Located in: Main menu =
(LP1)
; Submenu =
(PAR)
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
Auto-tuning OFF (0): No auto-tuning
1: Auto-tuning for 1.SP 2: Auto-tuning for 2.SP
3: Auto-tuning for 3.SP 4: Auto-tuning for 4.SP
5 to 8: Perform auto-tuning on a group basis in the same way as 1 to 4
9: Performs auto-tuning to all groups 1 to 8.
OFF (0)
Ref.2.1(5)
Ref.2.1(6)
Ref.1.1(1)
Ref.4.1(4)
Ref.1.2(3)
Ref.3.3(4)
Same as
above
Same as
above
Same as
above
Same as
above
Same as
above
Same as
above
“SUPER” function
OFF (0): Disable
1: Overshoot suppressing function
Suppresses overshoots generated by abrupt changes in the target
setpoint or by disturbances.
2: Hunting suppressing function (Stable mode)
Suitable to stabilize the state of control when the load varies greatly,
or the target setpoint is changed.
Enables to answer the wider characteristic changes compared with
Response mode.
3: Hunting suppressing function (Response mode)
Enables quick follow-up and short converging time of PV for the
changed target setpoint.
Note: Use "SUPER" function (SC) 2 or 3 in PID control or PI control.
"SUPER" function 2 or 3 is not available in the following controls:
1) ON/OFF control
2) P control (control for proportional band only)
3) PD control (control for proportional band and derivative item only)
4) Heating/cooling control
Do not use hunting suppressing function when control processes
with response such as flow or pressure control.
OFF (0)
PV input filter OFF (0), 1 to 120 sec
Used when the PV input value fluctuates.
OFF (0)
PV input bias -100.0% to 100.0% of PV input range span
Used to correct the PV input value.
0.0% of PV
input range
span
Setpoint ramp-up-
rate
Setpoint ramp-
down-rate
OFF (0)
0.0% + 1 digit of PV input range span to 100.0% of PV input range span
Set ramp-up-rate or ramp-down-rate per hour or minute.
Sets unit in ramp-rate-time unit (TMU).
Used to prevent the target setpoint from changing suddenly.
The ramp setting function works when:
1. the target setpoint is changed (e.g., “1.SP” is changed from
100C to 150C);
2. the target setpoint number (SPN) is changed (e.g., the
parameter is changed from 1.SP to 2.SP);
3. the power is turned on or has recovered from a failure; or
4. the operating mode is changed from Manual to Auto.
OFF (0)
OFF (0)
Ratio setting 0.001 to 9.999
Target setpoint = Remote input  Ratio setpoint + Remote bias
1.000
Remote input bias
Remote input filter
-100.0 to 100.0% of PV input range span
Used to correct the remote input value.
0.0% of PV
input range
span
1.0% of PV
input range
span
OFF (0), 1 to 120 sec.
Used when the remote input value fluctuates.
OFF (0)
ON/OFF rate
detection band
ON/OFF rate
high limit
ON/OFF rate
low limit
0.0 to 100.0% of PV input range span
ORL + 1 digit to 105.0% 100.0 %
-5.0% to ORH - 1 digit 0.0%
(AT)
(SC)
(FL)
(BS)
(UPR)
(DNR)
(RT)
(RBS)
(RFL)
(ORB)
(ORH)
(ORL)
Temperature rise
time of 2 min
Temperature
difference
of 140C
2.SP=640 C
1.SP=500 C
Rate of temperature
change of 70C/min
(i.e., 140C/2 min)
1.SP 2.SP
Switch from 1.SP to 2.SP


YOKOGAWA UT520 Specifications

General

Brand	YOKOGAWA
Model	UT520
Category	Controller
Language	English