Grain Systems PNEG-696 - Manual (Page 16)

Series 2000 Autoflow Operation
1 6
Grain
The grain temperature set-point is set here.
Use the increase and decrease buttons to change the
grain temperature setpoint. Press the enter button
when done.
Screens
By pressing the screens button you can toggle
between two screens. Screen #1 displays the current
plenum and grain temperatures and their setpoints in
parenthesis. Screen #2 displays the status of the drying
chamber rotary switches and the total number of
batches. In all screens the dry time and dump time are
displayed at the bottom of the screen.
# OF FILL SYSTEMS - Use the increase and decrease
buttons to toggle between one or two fill systems.
Press the enter button when the number of fill systems
displayed on the screen equals the number of fill
systems that the computer will be controlling. If one
fill system is selected only one fill system will be
controlled by the computer. The Hi Level SWdelay will
be used to delay the shut off of the fill system after the
drying chamber is full. The Fill 1 delay will have no
effect on the operation of the fill system. If two fill
systems are selected two fill systems will be controlled
by the computer. Both the Hi Level SWdelay and the
Fill 1 delay are used by the computer to delay the shut-
off of the fill systems after the drying chamber is full.
SELECT DRYER TYPE - Use the increase
and decrease buttons to select one of the four model
types that fits your system. The four models are as
follows:
AF2 - Autoflow with two main drying fans
AF1 - Autoflow with one main drying fan
AB2 - Autobatch with two main drying fans
AB1 - Autobatch with one main drying fan
Most systems will be either an Autoflow with
one fan or an Autoflow with two fans. Press the enter
button when the correct model number is displayed.
SELECT TEMP SCALE - Use the increase and
decrease buttons to toggle between Fahrenheit or
Celsius. Press the enter button when the correct scale
is displayed.
BURNER CYCLE - On/Off or Hi-lo cycle.
BURNER DIFFENTIAL - Use the increase
and the decrease buttons to change the burner differen-
tial. The burner differential is the span in degrees
between high fire and low fire when the Hi/Lo optoin
has been selected. When the temperature in the dryer
CONTROL SYSTEM
reaches the plenum temperature setpoint plus the
differential the burner will cycle from high fire to low
fire. When the temperature in the dryer falls to the
plenum temperature setpoint minus the differential the
burner will cycle from low fire to high fire. Example:
Plenum temperature setpoint = 180 degrees, tempera-
ture differential set to 3 degrees. The burner will cycle
from high fire to low fire at 183 degrees and will cycle
from low fire to high fire at 177 degrees. When burners
are set to
DIESEL- Select for diesel burners only.
PLENUM HI LIMIT- Setable hi limit that
will shut the dryer down when met. Default is 20
degrees above set plenum set point.
GRAIN TEMP HI LIMIT- Setable hi limit
that will shut the dryer down when met. Default is 30
degrees above set plenum set point.
Plenum and Grain Temperature settings. Screens
button options
Plenum
The temperature that the burner cycles from hi-
fire to low fire is set here. Use the increase and
decrease to change the value. Press enter when done.