B&C Technologies M720 Dryer Control (DE, DP, DI Series) - Manual (Page 14)

In this screen, a predefined program can be selected with the numeric buttons 0 to 9 or with the
A RROW U P and the A RROW D OWN buttons. The currently selected program number, together
with the program name is displayed in the lower line of the display. If the arrow buttons are used
in combination with the S
HIFT key, the selected program will be increased or decreased by 10.
When the correct program has been selected, confirm by pressing the E NTER key. When this key is
pressed, the selected program will be activated and the overview screen is displayed again. When
this has been done the cycle can be started.
It is also possible to use the START key. If this key is used, the current selected drying program
will be chosen, the drying program will be started immediately and the main screen is activated
again. This means that cycle start as described in section 3.1.3 on page 11is executed immediately.
If no alarms are active, go to section 3.1.4.
3.1.2 Single Cycle Mode
This mode is used in special circumstances like partially dried batches and special materials. If
the S
ELECT P ROGRAM key is used in combination with the S HIFT key, the screen for entering a
single cycle is displayed. In the single cycle screen, a self chosen drying time and temperature
can be entered. By default, the values are as defined in program 50 and these values can then be
programmed by the user.
The screen will start up with the edit-field on the drying time. If necessary change the drying time
value with the P
LUS or M INUS buttons or with the N UMERIC buttons and confirm with the E NTER
key. When the E NTER key is pressed, the cursor will move to the drying temperature. Change
the value if necessary in the same way and confirm with the E NTER key. When the E NTER key is
pressed while the cursor is on the drying temperature, the overview screen is activated again, and
the cycle is ready to be activated (see section 3.1.3 on page 11).
In the screen for entering a single cycle drying time and temperature, the cursor can be moved to
the next or previous edit-field with the A
RROW U P and A RROW D OWN buttons.
When a single cycle program is finished, the controller will automatically switch back to the pre-
defined program which was last used before the single cycle was started.
3.1.3 Starting a Cycle
After the correct program has been selected, a program cycle can be started with the START key.
If this key is pressed, the software will check if all inputs are in the correct state. If so, the cycle
is started and step 3 is activated (see section 3.1.4 on page 12). If one of the inputs is not in the
correct state, the lower line in the display will show an alarm text and the numeric display above
the graphical display will start blinking with the alarm number. A full explanation of the available
alarms and their cause can be found in Chapter 5 on page 39.
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