Thoreson-McCosh Inc
EDITION 05/07/10
19
IB201001.doc
the effect of the time delay, as ambient conditions change, and plastic resin differ in
acceptable process applications.
SECTION 8.4 SETTING THE REGEN BLOWER OFF-DELAY
On the second press of the OPTIONAL SETPOINTS key after the Bed Index display is
shown, the following will be displayed:
R e g e n D e l a y t i m e = 0 5
m i n u t e s
N e w = 1 0 ( 3 t o 1 5 )
P r e s s E N T E R
FIGURE 8.4 REGEN DELAY TIME SCREEN
This display shows the current off-delay (cool down) time, the new time as you enter it, and
the maximum time allowed (15 minutes).
Enter the new time and press the enter key. On the next regen cycle the regen blower will
now stay on for this period of time after the dryer has finished the normal regeneration
cycle. For dryers with the regeneration power saver option, the blower will stay on for this
period of time after the regenerating bed has reached an exhaust temperature of 325°F/
163°C.
SECTION 8.5 SETTING THE SHIFT-DELAY
On the 3rd press of the OPTIONAL SETPOINTS key after the Shift Delay display will be
shown.
S h i f t D e l a y = 6 0
( 3 0 t o 3 0 0 s e c o n d s )
N E W = 4 5
P r e s s E N T E R
FIGURE 8.5 SHIFT DELAY TIME SCREEN
This display shows the current Shift Delay setting and the new time as you enter a new
setpoint. It also shows the minimum and maximum time allowed. This delay time controls
two items. The first is output #23 on the main control board which enables the OPTIONAL
hopper pre-heater, the second is the Process Heaters. The delay allows the heat in the pre-
heater box and the process box to be purged prior to a normal shift so the temperature
spike at shift is minimal.
