16 -
ATR243 - User manual
6.3 Keys
8
• Allows to increase the main setpoint.
• During the configuration phase, allows to slide through
parameters. Together with the
SET
key it modifies them.
• Pressed after the
SET
key it allows to increase the alarm setpoint.
9
• Allows to decrease the main setpoint.
• During the configuration phase, allows to slide through
parameters. Together with the
SET
key it modifies them.
• Pressed after the
SET
key it allows to decrease the alarm setpoint.
10
SET
• Allows to display the alarm setpoint and runs the autotuning
function.
• Allows to vary the configuration parameters.
7
Controller Functions
7.1 Modifying Main Setpoint and Alarm Setpoint Values
The setpoint value can be changed by keyboard as follows:
Press
Display
Do
1
or
Value on display 2 changes.
Increases or decreases the
main setpoint.
2
SET
Visualize alarm setpoint
on display 1 value being
inserted.
3
or
Value on display 2 changes.
Increases or decreases the
alarm setpoint value.
7.2 Auto-Tuning
Tuning procedure calculates the controller parameters and can be manual or automatic
according to selection on parameter 57 (
tunE
).
7.3 Manual Tuning
Manual procedure allows the user greater flexibility to decide when to update P.I.D.
algorithm work parameters. The procedure can be activated in two ways.
• Running Tuning by keyboard
:
Press
SET
key until display 1 shows the writing
tunE
with display 2 showing
off
, press
, display 2 shows
on
.
TUN
led switches on and the procedure begins.
• Running Tuning by digital input
:
Select
tune
on parameter 61
dGt.i.
At first activation of digital input (commutation on
front panel)
TUN
led switches on and at second activation switches off.