Control system – Grain Systems PNEG-696 User Manual
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Series 2000 Autoflow Operation
Electronic Monitoring Control System
The Electronic Monitoring Control System
controls all timing functions and safety circuit checks.
It is designed to simplify dryer operation by providing
printed messages and warnings on its liquid crystal
display (LCD).
Turning On The Electronic Monitoring Control
System
Turn the control power switch to the “on”
position. The monitor will display a copyright mes-
sage, software version number and will enter the main
drying screen.
Setting The Dry, Cool And Unload Timers
These switches are used to set the dry, cool and
dump cycle times. The current settings on these timers
are displayed directly above their timer button. To
change the setting of these timers do the following:
1) Press the dry, cool or unload timer button.
2) Press the modify button.
3) Press the increase or decrease button to
adjust the settings.
4) Press the enter button.
5) To enter the new value into memory imme
diately, press the reset button.
During operation the remaining time on each
timer is displayed on the screen. If the power goes out
or the dryer is stopped these times are saved by the
controller. When the dryer is restarted the timers will
continue timing down. The timers will return to their
initial settings by pressing the reset button. The Cool
Timer is not used on A Autoflow system except when in
Cool Down Mode. The Cool Timer is used to determine
how long the Top Dry will cool at shutdown. If no Cool
Down is desired set Timer to 0. Upon any of the
following conditions the system will go into cool down
mode.
1) Out Of Grain Timer Warning
2) Storage Chamber Full Warning
3) Low Level Switch Exposed Warning
4) Wet Bin Switch Exposed Warning
CONTROL SYSTEM
Setting The Delays
The Following Delays are set by pressing the
Delays Button
WET BIN SWITCH DELAY - If the Wet
Supply Rotary Switch is exposed this delay must expire
before a warning is given.
REFILL DELAY - The REFILL DELAY is
used only on batch units. It is the amount of time that
the unit has to refill after the dump cycle. If the unit
does not refill before the time on the refill delay is at
zero the unit will give a “dry chamber empty” error.
This delay is not shown in Autoflow Mode.
HI LEVEL SW DELAY - The value set on the
HI LEVEL SW delay is the amount of time that fill
system runs after grain reaches the drying chamber
high level rotary switch. The HI LEVEL SW delay
should be set long enough so that the drying chamber
high level rotary switch is covered with enough grain
that the fill system does not start and stop frequently in
the dry cycle due to settling or shrinkage; but, the HI
LEVEL SW delay should be set short enough so that
grain does not reach the drying chamber overflow
rotary switch.