West Control Solutions KS 45 - Manual (Page 44)

7.3.3 Self-tuning start
g
Self-tuning start can be locked via BlueControl
Ò
(engineering tool) ( IAda).
The operator can start self-tuning at any time. For this, keys ô and È must
be pressed simultaneously.
The controller outputs 0% or Y.Lo, and the text .A.d.A. is indicated in the
second display line. The controller waits until the process is at rest. As soon
as a sufficient setpoint reserve is present, he starts with the real self-
optimization by jumping to a setpoint of 100% .
The second display line shows
.AdA
After successful self-tuning, the AdA-display is off and the controller
continues operating with the new control parameters.
7.3.4 Self-tuning cancellation
By the operator:
Self-tuning can always be cancelled by the operator. For this, press ô and È key simultaneously. With manual-au-
tomatic switch-over configured via A-M function, self-tuning can also be canceled by actuating. The controller contin -
ues operating with the old parameters in automatic mode in the first case and in manual mode in the second case.
By the controller:
If the Err LED starts blinking whilst self-tuning is running, successful self-tuning is prevented due to the control condi -
tions. In this case, self-tuning was cancelled by the controller.
Dependent of control type, the output status is:
• 3-pnt. stepping controller: actuator is closed (0% output)
•
2-pnt./ 3-pnt./ continuous controller:
If self-tuning was started from the automatic mode, the controller output is 0%. With self-tuning
started from manual mode, the controller output is Y2.
7.3.5 Acknowledgement procedures in case of unsuccessful self-tuning
1.Press keys
ô and È simultaneously:
– The controller continues controlling using the old parameters in automatic mode.
– The Err LED continues blinking, until the self-tuning error was acknowledged in the error list.
2.Press A-M function (if configured):
– The controller goes to manual mode. The Err LED continues blinking, until the self-tuning error was
acknowleged in the error list.
3.Press key ô :
– Display of error list at extended operating level. After acknowledgement of the error message, the controller
continues control in automatic mode using the old parameters.
Cancellation causes:
r page 33: "Error status self-tuning heating ( ADA.H) and cooling ( ADA.C)"
Controlling
Self-tuning 44 KS 45
1 2 M E
450.3
.A.d.A.
дььь
1 2 M E
450.3
.AdA
дььь