Conair W Series User Manual page 56

NOTE: Screens 41, 42, 43, 44, 45,
46 and 47 apply to process and
regeneration.
Central
When configured as a
central dryer, there is
no process heater in the
system. Therefore, any
function associated with
the process heater is not
available for central
dryer configurations.
4 - 2 0 l O p e r a t i o n
C o n t r o l F u n c t i o n D e s c r i p t i o n s
S c r e e n
SCREEN 40
PROCESS PID
AUTOTUNE OFF
and
REGEN PID DONE
AUTO
SCREEN 41
PROCESS POWER LIMIT
LOW 2% HIGH 80%
SCREEN 37
SCREEN 42
PROCESS CYCLE TIME
HEAT 2.0 SECONDS
SCREEN 43
PROCESS PROP BAND
HEAT/COOL 30°F
F u n c t i o n
Before running an autotune, set the set-
point to the desired temperature you would
DONE
like the control to autotune to on screen 3
for process and screen 4 for regeneration.
Screen 47 shows the autotune function for
the selected heater. The dryer must not be
running to initiate an autotune. The auto-
tune should be started from a cold start to
work best. With the proper password, (see
page 4-31, screen 85) press the Select
Category button under the word Off. Once
selected, the word should start to blink.
Press the (+) or (-) button to toggle the
Off to On and then press the "ENTER"
key to start the autotune. The display will
show " Wait" then "Heat" then " Done"
when it is complete. Pressing "STOP"
during an autotune will cancel the autotune
and not change PID values. The PID
values can be set back to factory defaults
by going to the Reset screen (46).
This screen shows the power output range
for the heater. It is set by default to 0%
for the low and 100% for the high.
This screen shows the PID cycle time for
the heater "Heat", or with a precooler
"Cool". This time value is the time for one
on/off cycle. For example, with a heater
running at 50% and the cycle time set at
2 seconds the heater would be on 1 second
and off 1 second.
This screen shows the Proportional Band
value for the PID loop.
( c o n t i n u e d )