Chapter C
Chapter C
Maintenance Mode
92
W301-0411E
2.7 Ao
Check
Displays the status of analog output. In the maintenance main menu of Fig. 1.3.1, select "Ao Check," and press
the <
> key to display the Ao check screen shown in Fig. 2.7.1.
To perform the test output, select the set value of item (highlighted) using the < > key (scroll up) or the < >
key (scroll down). The set value is increased or decreased using the < > key (+) or the <
> key (-). While the
< > key is pressed, the set test value can be output.
To go back to the maintenance main menu, press the < > key.
To perform the continuous test output, press the < > key and the <
> key. In this case, the inspection output
can be performed while increasing/decreasing the set value by using the < > key (+) or the <
> key (-).
To quit the continuous test output, press any of the < > key, the < > key, the < > key (scroll up), or the < >
key (scroll down).
Fig. 2.7.1 Ao check screen
<Description of display contents>
Set: Set value for test output (D/A value: Selectable from 0 to 255)
Out: Current output value (D/A value: 0 to 255)
FB: Feedback current value (D/A value: 0 to 255)
State
(Monitor): Control output monitor
(Check):
Check output monitor
(Check): Continuous
check output monitor
Can not swing when the output value (D/A
value) of “Ao1 Port” is 200 or more. But
swing when the output value change to 0
with F4 key (scroll down).
When it becomes “Open completely = Full
stroke” when the impressed current is 0,
and 0.8 amperes (D/A value 255) are
impressed, the Pilot pressure that
controls the stroke of “Swing control
value” becomes “Close completely = Zero
stroke”. Therefore, flow rate from the
pump can not supply to the swing motor,
and the swing stops.
