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Temperature controller 70304G | 1.00.02
www.mc-techgroup.com
15.2 SELF-OPTIMIZING (PID ACTION) OF CONTROL CIRCUIT
The controller type
70304G
includes the option of self-optimizing. For the initial operation of all
M&C
components, this is necessary.
NOTE!
For self-optimizing of the control circuit, the heating of the respec-
tive M&C component must be reconnected to the appropriate con-
troller terminals (see Figure 3).
W A R N I N G !
Before connecting the heating, isolate the unit from the power
supply!
Before self-optimizing firstly the ramp function has to be deactivated (Fnct = 0) and the parameter for
the limit comparator has to be changed (Lfun = 6). See also chapter 13.
The self-optimizing function can be activated as follows:
•
After cable connection (Figure 3), switch on the supply.
•
When the actual value (top display, red indicator)
reaches the setpoint value (bottom display, green indicator), press
+
keys simultaneously for
longer than 2 seconds. The word ”
tUnE
” now flashes in the setpoint value display and the self-
optimizing function is activated.
•
Self-optimization has finished when the display changes to the standard display. The time of self-
optimizing depends on the control circuit.
•
To cancel the self-optimization, press the keys
+
simultaneously.
After self-optimization reactivate the ramp function (
Fnct = 1
) and reset the parameter for the limit com-
parator (
Lfun = 2
).
