Owner manual

Programming
19
MC22-GB-V1.00
4.10 Program End Feature
A program can end in one of two ways, either after the unit temperature has dropped below
the cycle end threshold “CEt” which is the general method for most programs or after the
last program repetition, if “CEt” has been set to “off”.
Program end with a cycle end threshold value
When a program has a cycle end threshold value assigned and the last program repetition
is finished the device is turned off and naturally cooled until the temperature value is less
than threshold established by "Cet". During this phase the lower display shows "CooL" while
the upper display shows the temperature value.
After this period, when the temperature value is less than the cycle end threshold the unit
will still cool naturally to ambient but the display will show “End” on the lower display and the
temperature value on the upper display, indicating that the full program cycle is completed.
Note: It is recommended that the cycle end threshold is no greater than 600°C. This maybe
less, depending on the workpiece.
Program end with cycle end threshold set to off.
If a program has the cycle end threshold set to “OFF” the natural cool phase is removed,
which means when the last program repetition is finished, the controller immediately
displays "End” the device is then turned off and will naturally cool to ambient.
Note: There is no cool period indicated with this method and therefore the furnace door may
inadvertently be opened straight after a high temperature cycle, causing damage to the
workpiece and/or elements. It is therefore recommended that the cycle end threshold has a
value set to it.
In either of the above cases the display will continue to display “End” until it has been
acknowledged by pressing any of the four controller keys. After pressing one of the keys the
display will show “rdy” on the lower display and the temperature value on the upper display,
indicating that the program is ready to be run.