B&C Technologies M720 Dryer Control (DE, DP, DI Series) - Manual (Page 18)

and to notify the user that a program is finished and that the batch is ready to be taken out.
If an alarm is active, the numeric display will toggle between - - - and the current alarm number.
In this case the lower line of the graphical display will show the alarm text corresponding with the
alarm number. For a full explanation of all available alarms, see Chapter 5 on page 39.
If a drying or cool-down cycle is running, the numeric display will show the estimated time left
for the cycle in minutes.
If the program has finished the numeric display will toggle between - - - and empty. This indicates
that the drying and cool-down has been done and that the batch is ready to be taken out of the
dryer.
When the machine is not drying or has finished a program, and no alarms are active, the numeric
display will only show - - -.
3.2.5 LED Functions
The controller has 3 LEDs: A yellow LED next to the numeric display at the top left of the display,
a red LED within the stop key and a green LED within the start key.
The yellow LED indicates the status of the heating output. If the LED is on, the call for heat output
is on, and when it is off, the call for heat output is off.
The red and green LEDs are used to indicate the current machine status. See Table 3.1 on page 15
for details.
Table 3.1: LED Functions
Red LED Green LED Meaning
On Blinking A warning or alarm is active. The upper numeric dis-
play will toggle between — and the alarm number.
See Chapter 5 on page 39 for the available alarms.
Blinking Blinking A program cycle is finished and the controller is wait-
ing for the goods to be taken out of the machine. The
upper numeric display will toggle between — and
empty.
On Off The stop key was pressed during a running cycle. If
the S
TOP key is pressed again the cycle will be can-
celed and the machine will return to the ready to use
state. If the S
TART key is pressed, the program will
resume.
Off Blinking The machine is ready to start. If the S TART key is
pressed, the program will begin.
Off Off Program cycle running
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