OperatorManual - 第20页
Quick cool down QUICK COOL DOWN Selecting the QUICK COOL DOWN symbol will start the ce ll fans while the HOOD is open without heat applied to the cells. (Select this symbol again to stop the fans) QUICK COOL DOWN aids th…
Shutdown machine
SHUTDOWN PROCEDURE
Go to
File, Stop Running Process
or click on the oven power switch to begin the shutdown procedure. The
heaters are turned off, the conveyor and cell fans continue to run.
The status bar will display:
SHUTDOWN
When the oven has entered shutdown, or when the oven is first powered up, a procedure called
SHUTDOWN
is
executed. (This procedure cannot be modified by the user) During
SHUTDOWN
, the cell fans are enabled and
the conveyor runs at maximum speed. The red light on the light tower is on.
When the temperatures of all cells are below 100 degrees C, the oven enters the
OFF
state. The status bar
indicates:
OFF
The cell fans and the conveyor stop. The red light on the light tower, and the red light on the operator panel are
on.
While the oven is in an
OFF
state, if any cell temperature goes above 100 deg C, the oven will re-enter the
SHUTDOWN
procedure, the Oven will go into Alarm and the Cell fans will run at full speed.
Operator manual 19 August 2003
Quick cool down
QUICK COOL DOWN
Selecting the
QUICK
COOL
DOWN
symbol will start the cell fans while the HOOD is open without heat
applied to the cells.
(Select this symbol again to stop the fans)
QUICK
COOL
DOWN
aids the cooling of the process tunnel, and is possible only in the
SHUTDOWN
state.
BE CAREFUL OPENING THE HOOD, THE AIR AND THE OVEN SURFACES ARE HOT !!
Operator manual 20 August 2003
Oven alarm Levels
ALARM LEVELS
There are five (5) alarm levels. Starting with the lowest alarm level, they are:
Notify
- During this condition:
•
No change occurs in the Oven Operation
•
The Oven Status Bar will display the
current machine status
.
2) Warning
- During this condition:
•
The Yellow light on the light tower will be on
•
The audible alarm will be off.
•
The conveyor will remain at setpoint
•
The heaters will remain at setpoint
•
Nitrogen or Air will remain at setpoint
•
Cell Fans will continue to run
•
The Oven Status Bar will display
WARNING
in Blue Letters.
3) Critical Warning
- During this condition:
•
The Red light on the light tower will be on
•
The audible alarm will be on
•
The conveyor will continue to run at setpoint
•
The heaters will continue temperature at setpoint
•
Nitrogen or Air will remain at setpoint
•
Cell Fans will continue to run at setpoint
•
The Oven Status Bar will display
CRITICAL WARNING
in Blue Letters.
4) Alarm
- During this condition:
•
The Red light on the light tower will be on
•
The audible alarm will be on
•
The conveyor will run if oven temp above 100 deg
•
The heaters will turn off
•
Nitrogen or Air will be turned off
•
Cell Fans will continue to run (Full speed with Nitrogen Option)
•
The Oven Status Bar will display
ALARM
in Blue letters.
5) Critical Alarm
- During this condition:
•
The Red light on the light tower will be on
•
The audible alarm will be on
•
The conveyor will run
•
The heaters will turn off
•
Nitrogen or Air will be turned off
•
Cell Fans will stop
•
The Oven Status Bar will display
CRITICAL ALARM
in
Red
Letters.
The Levels of
some
alarms which monitor and warn of operating conditions in the oven can be selected, or be
disabled.
No user input is required to clear this alarm state. The oven will go to the process ready state
when the alarm condition no longer exists.
SELECT SETUP, and DISPLAY LAYOUT TO SET THE SCREEN BACKGROUND TO RED WHEN
ALARMS OCCUR
Operator manual 21 August 2003