BEKA BA568E, Руководство пользователя

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6.7 Output pulse width:
durAtion
When the output pulse is derived from the total
display, the pulse width is defined by this function.
One of 11 pulse widths in milliseconds may be
selected:
0 . 1
0 . 5
1
2 . 5
5
10
25
50
100
250
500
Using the
&
or
*
push button select
durAtion
in
the pulse output sub-menu and press
(
to reveal
the existing pulse duration. The value can be
changed by pressing the
&
or
*
push button to
select the required value followed by the
)
button
to return to
durAtion
prompt.
Note: This function only appears in the pulse
output sub-menu when the output pulse is
derived from the total display.
7. CONFIGURATION EXAMPLE
A BA568E Counter is required to display the position
and speed (rate), including direction, of a cable
which is sensed by two proximity detectors mounted
on a wheel with a circumference of 1m over which
the cable runs. The sensors, which produce fifteen
pulses per revolution, are positioned so their outputs
are electrically 90° apart. The BA568E is required
to display the position of the cable relative to a
starting point in metres with a resolution of 0.1m,
and to show speed of the cable in metres per
second with a resolution of 1m. The total display
(position) is to be resettable by an external contact,
not from the BA568E Counter front panel. Similarly
the grand total is not to be resettable from the
BA568E Counter front panel. To prevent tampering
the instrument configuration menu is to be protected
by security code 1209.
The BA568E may be configured on-site without
disconnection from the power supply or from the two
proximity detectors.
If after accessing the configuration menu the interval
between operating any front panel push button
exceeds one minute the BA568E will automatically
return to the display mode and any configuration
changes will not be stored in permanent memory.
When making multiple changes it is therefore
sensible to occasionally return to the display mode
to save the changes that have already been made.
Step 1 Enter the configuration menu
Put the BA568E Counter in the
configuration mode by simultaneously
pressing
(
and
)
push buttons .
Assuming a security code has not
already been entered the instrument will
respond by displaying
inPut-A
which is
the first parameter in the configuration
menu.
See Fig 7.
Step 2 Select the type of inputs
With
InPut-A
displayed; press
(
to
reveal the existing setting. Using the
&
or
*
button select
Pr . dEt
, the input
for a 2-wire proximity detector, and then
return to the
inPut-A
prompt in the
configuration menu by pressing
)
.
Repeat for the second input
inPut-b
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