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7-15
Chapter 7. PARAMETER SETUP
●
m-At (motor valve opening automatic adjustment)
0: Adjustment disabled
1: Adjustment enabled
This parameter automatically measures the motor fully closed position, fully open
position, and close-open times. The results of calculation are automatically written
to
m-CL, m-oP
and
m-t
.
• Adjustment Method and Motor Functions
1
. Set
m-C
to 0 or 1.
2
. Set
m-At
to 1, and press the
ENT
key .
If set to 1 already, press the
ENT
key twice to enter automatic adjustment.
3. Automatic adjustment is carried out.
•
CA.CL
is displayed on the upper display, and the closed-side relay turns
ON.
• 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 completed, and the count value is written to
m-CL
.
•
CA.oP
is displayed on the upper display, and the closed-side relay turns
ON.
• 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
m-oP
.
The time it took from fully closed to fully open is written to
m-t
. However,
note that if this time is 240.0 seconds or more, the time is taken as 240.0
seconds.
• When all adjustments are completed, the DCP32 returns to the basic
display state.
4. To cancel automatic adjustment, press the
DISP
key.
When automatic adjustment begins, you cannot press any keys other than the
DISP
key. The
DISP
key is used for canceling adjustment.
The following instances are regarded as errors. In these instances, the factory
settings are returned to, and
AL12
is displayed. The
AL12
display can be
cleared only when automatic re-adjustment has ended successfully or when
the power has been reset.
• Fully closed count - fully open count is less than 500
• Fully closed count is greater than fully open count
• Time from fully closed to fully open is less than 5 seconds
• MFB disconnected alarm (
AL10, AL11
) occurs continuously or frequently
• The time taken for the MFB count to stabilize exceeds 5 minutes
• 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
m-C
is set to 2, the set time is taken as the base for all operations. Enter the
time correctly in 0.1 second units.