T1 - Omron Control INSTRUCTION MANUAL
Page
8
SHAW-ALMEX INDUSTRIES LIMITED
49900-030 October 2000
Revised Mar03, Jun04, Aug04, Jun05
4.
Press the Up key until No. 2 display shows the number 2.
5.
Press the Level and Mode keys simultaneously for at least one second to return to the temperature display.
Removing protection:
1.
Press the Level and Mode keys simultaneously for at least three seconds until oAPt appears in the display.
2.
Press the Down key until No. 2 display shows the number 0.
3.
Press the Mode key once and No. 1 display will show iCPt.
4.
Press the Down key until No. 2 display shows the number 1.
5.
Press the Level and Mode keys simultaneously for at least one second to return to the temperature display.
5.1.3. Setting Temperature Units to
°
C or
°
F
1.
Press the Level key for at least 3 seconds, until No. 1 display shows in-t .
2.
Press the Mode key until No. 1 display shows d-U .
3.
Press the Up or Down key until No. 2 display shows F (Fahrenheit) or C (Celsius).
4.
Press the Level key for at least 1 second to return to the temperature display.
5.2.
Heating the Vulcanizer
Safety:
Never heat the vulcanizer unattended.
1.
The vulcanizer should be pressurized to at least 5 psi (0.3 kg/cm
2
) before heating.
2.
Turn the switches to the
1A
(On, Automatic) position to begin heating the vulcanizer. The OUT indicator
on the controller will light until the process value is close to the set value and then begin to flash. The
platen temperature indicator (no. 1 display) value will begin to increase as the platen temperature rises.
Safety:
The platen will begin to get hot.
3.
When the set point (no. 2 display) is reached, the OUT indicator will continue to flash on and off to
maintain set value temperature. Start timing the cure when set value is reached.
4.
After the cure time, turn the controller switch to the
OFF
position.
5.
For minimal overshoot on the next heating cycle, reset the controller by disconnecting from power.
5.3. Manual
Override
The
1M
position on the switch can be used to heat the platen while bypassing the temperature controller and the
temperature sensor. An insertion thermometer can be used to monitor the platen temperature if the controller
has failed. The switch must be held in the on position and it will return to the off position when released to
avoid accidental overheating.
5.4. Temperature
Control
1.
A P.I.D (Proportional Integral Derivative) solid state temperature controller that senses the resistance
change in an RTD (Resistance Temperature Device) probe in each platen effects temperature control. The
controller should maintain temperature at the set point +-3
°
F (2
°
C) at 300
°
F (150
°
C).
2.
The temperature controller incorporates a proportioning circuit that causes the platens to reach set point
temperature in a minimum of time with less than 2
°
F (1.1
°
C) of temperature overshoot. In operation, the
controllers will begin cycling off and on slightly below set point. During this initial cycling period, the
temperature will continue to rise to the set point as indicated by the temperature controllers. This early
cycling is a normal function of the controller and should not be reset, otherwise excessive temperatures will
occur.
