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Fuji pxz (PXZ5-TAY2 -4V) PXZ5 temperature controller
Note that bits for comparable parameters in each type of controller are located in dramatically different positions! And yes in each case, three of the 56 bits are not used. This is all to keep us bit-mavens on our toes.
Now how do you go about using all this information? Each dsp word can contain any value from 0 to 255 — or from enabling all of the parameters associated with the word, to disabling all of them. Let's take and example using the table for the PXV3.
The PXV3 does not have the heater break option (Hb) available as an option and alarm outputs (AH and AL) must be purchased as optional equipment. If we want to mask those bits so they do not show in the menu we would set,
All other parameters (P, LoC, AT, and oFF or rUn or HLd) would display and could be changed normally. Keep in mind the number you are entering into a particular dsp word is expressed in decimal. It represents the bit positions you want to mask — i.e. disable.
There is one side effect of this procedure. Those bits related to the parameters used for programming the ramp/soak feature may be enabled or disabled as you wish. If a setpoint value (SV-1 through SV-4) is disabled, the program will skip over that step in the program. In the limit, if you just wanted your program to ramp to a preset temperature and then hold there, you could mask all of the programming parameters except TM1r and SV-1. There will be more to say about this in the section on programming.
Setting Parameters for Controlling a Furnace or Annealer
You will then want to set the following parameters.
Table 3, Fuji Control Parameters
Cycle Time (At least 2 seconds when controlling a MDR.)
Hysteresis (Set as narrow as practical that does not make the relay chatter.)
Input Type (See discussion above.)
Lower Limit of Input Range (32 F is ok)
Upper Limit of Input Range (1100 F for annealers, 2300 F for furnaces)
Decimal Point Position (Usually set to zero for our applications)
Process Variable Offset (Usually zero)
Setpoint Variable Offset (Usually zero)
C/F Selection (Usually °F, but all temperatures must use the same units.)
Ramp/Soak Mode (Usually zero, see section on programming.)
Control Action & Sensor Burnout (Usually zero, see manual for options.)
Input Filter Constant (Follow suggestions in the manual, but keep small.)
Fuzzy Logic Control (Leave oFF for now. It will be changed later.)
Input Zero Calibration (Leave at zero.)
Input Span Calibration (Leave at zero.)
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THANK YOU AND GOOD LUCK !!!!.LISA...
