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6
UP150 Controller
RUN m m HOLD
Figure 2. UP150 Control Panel
The oven temperature controller is configured and tuned at the
factory to function well for most applications. Occasionally, it
may be advisable to configure the temperature controller
differently to suit a particular working environment or process.
Before reconfiguring the controller, read
this chapter carefully. Reconfiguring the controller can
change the unit characteristics and design
parameters, which can hamper performance and
make the equipment dangerous to use.
For more detailed instructions, refer to the Yokogawa UP150
manual.
6.1 Normal Controller Operation
The Temperature Controller senses the chamber air temperature
of the oven (the PV, or process value) and supplies the heat
necessary to achieve the desired setpoint. The controller includes
an LED display and a pushbutton keypad. Refer to Table 2 and
Table 3 for lists of displayed parameters and keypad functions.
The UP150 controller will accept a single program of up to 16
segments. This controller includes an automatic tuning feature
and "Super" control to improve the performance. Refer to the
UP150 manual for detailed information.
Table
UP150 Parameter Functions
4.
parameter
Value
Operating parameters (access by holding the SETENT key)
OFF
Program Hold
OFF
Segment Advance
Pid
Control mode
At
Auto tuning
P
32.4
Proportional band
I
1384
Integral time
346
Derivative time
Ct
Heat cycle time
FL
OFF
Sensor filter
0.0
PV bias (offset)
0
Key lock
Setup parameters (access by setting LoC=-1)
In
5
Input type (J thermocouple in *C; *F=35)
SC
ON
Super function
Table 5.
Pushbutton Keypad
Button
Pressing and holding the SETIENT for three seconds
advances the display to the Operation Parameters
Menu.
While in the Operation Parameters Menu, use
SETIENT to move from one parameter to the next, and
to register changes you have made in setpoint and
parameter values.
Holding SETIENT for three seconds exits either the
Operation or Setup Parameters menu.
Use the Up Arrow button to increase the temperature
Operation and Setup Parameter menus. Whenever
you change the value of a setpoint or parameter, the
a
decimal point flashes to remind you to register the
changed value with SETIENT.
While in operating mode, pressing this key stops
(resets) program operation.
Use the Down Arrow button to decrease the
temperature setpoint display and to change parameter
values in the Operation and Setup Parameter menus.
Whenever you change the value of a setpoint or
parameter, the decimal point flashes to remind you to
register the changed value with SETIENT.
While in operating mode, pressing this key starts
(runs) a program
Installation and Operation
Laboratory Vacuum Ovens
Description
Function
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