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Appendix B
Page B-3
Parameters for PXW-4 Controllers
The following instructions apply to the Fuji
Electric PID Controller with Fuzzy Logic, Model
PXW4-RAY1-4V, PXW4-RCY1-4V, and PXW4-
TCY1-4V used on the Neutec
™
J-2
r
casting
machine.
These instructions are used to improve the
heating speed to set-point, improve set-point
stability, and reduce overshoot in the event the
cast point (set-point) is missed. Additionally, the
machine operation has been programmed
to use the “cast on the way up” method applied
on the larger Neutec
™
J-series machines. The
programming uses the full capabilities of the
Fuji temperature controller including the Fuzzy
logic feature, alert indicator light, and variable
balance adjustment.
Controller face
Purpose
The purpose of this procedure is to reset or
verify that the controller parameters are correct
for the desired temperature in °C and °F, or
to change the controller parameters to toggle
the controller between °C and °F modes of
operaton.
Open and Set dSP Factory Settings
1. Unplug the thermocouple and turn on the
J-2
r
. The SV light comes on and the set-point
value is displayed.
2. Press the “SEL” button for 9 seconds until
“FUZY,” “P-n1,” or “dSP1” displays in the upper
row.
3. Press the down arrow (
∨
) until you see
“dSP1” on the display.
4. Push “SEL.” Press the up or down arrow
(
∧
or
∨
) until “104” is displayed (see dSP
factory settings chart below).
5. Push “SEL” once to enter value for dSP1.
6. Push the down arrow to access the next
parameter, dSP2.
Display Setting
dSP1
104
dSP2
120
dSP3
32
dSP4
252
dSP5
255
dSP6
128
dSP7
65
dSP factory settings, open
7. Repeat steps 3–6 using the dSP factory
settings chart (above) to enter factory
settings.
