Pixsys ATR142 - 7 Controller Functions; Modifying Main Setpoint and Alarm Setpoint Values; Auto-Tune; Manual Tuning

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7 Controller Functions
7.1 Modifying Main Setpoint and Alarm Setpoint Values
The setpoint value can be changed from the keyboard as follows:
Press Effect Operation
1
or
Value on display 2
changes
Increases or decreases the
main setpoint
2
S
E
T
Visualize alarm
setpoint on display
1
3
o
Value on display 2
changes
Increases or decreases the
alarm set point value
7.2 Auto-Tune
The Tuning procedure calculates the controller parameters and can be
manual or automatic according to selection on parameter 46 .
7.3 Manual Tuning
The manual procedure allows the user greater flexibility to decide
when to update PID algorithm work parameters. The procedure can be
activated in two ways.
• By running Tuning from keyboard:
Press the
F
N
C
key until display 1 shows the writing with
display 2 showing , press , display 2 shows .
The led switches on and the procedure begins.
• By running Tuning from digital input:
Select
on parameter 50
.
On first activation of digital input (commutation on front panel) the
led switches on and on second activation switches off.