Chapter 7. PARAMETER SETUP
●M .-A t (motor valve opening automatic adjustment)
0:Adjustment disabled
1:Adjustment enabled
This parameter automatically measures the motor fully closed position, fully open posi- tion, and
•Adjustment Method and Motor Functions 1. Set
2. Set
If set to 1 already, press ENT twice to enter automatic adjustment.
3.Automatic adjustment is carried out.
-C A .C L is displayed on the upper display, and the
-The motor operates to the closed side, and the MFB count value is displayed on the lower display. When the count has stabilized, fully closed adjustment is com- pleted, and the count value is written to
-C A .O P is displayed on the upper display, and the
-The motor operates to the open side, and the MFB count value is displayed on the lower display. When the count has stabilized, fully open adjustment is completed, and the count value is written to
The time it took from fully closed to fully open is written to
-When all adjustments are completed, the controller returns to the basic display state.
4. To cancel automatic adjustment, press DISP .
When automatic adjustment begins, you cannot press any keys other than DISP .
DISP is used for canceling adjustment.
The following instances are regarded as errors. In these instances, the factory set- tings are returned to, and A L 1 2 is displayed. The A L 1 2 display can be cleared only when automatic
-Fully closed count - fully open count < 500
-Fully closed count > fully open count
-Time from fully closed to fully open is less than 5s
-MFB disconnected alarm (A L 1 0, A L 1 1) occurs continuously or frequently
-The time taken for the MFB count to stabilize exceeds 5min
-Faulty wiring of MFB or switching relay
(However, note that all faulty wiring cannot be detected as an error.)
●M .-t (motor valve opening adjustment fully open/closed time)
When
