BEKA BA364E, Руководство пользователя

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8. CONFIGURATION EXAMPLE
A BA364G Counter is required to display the position
and speed, 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 BA364G 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 BA364G Counter front panel. Similarly the grand
total is not to be resettable from the BA364G
Counter front panel.
To prevent tampering the
instrument configuration menu is to be protected by
security code 1209.
The BA364G 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 BA364G 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 BA364G 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 10
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
Step 3 Select input count mode
The two proximity detectors are
positioned so their outputs are electrically
90° apart. From this information, in the
quadrature input mode the BA364G
Counter can sense the direction and
angular movement of the wheel to which
the proximity detectors are attached.
Hence, the relative position of the cable
can be displayed by the counter.
Select
Count
from the configuration menu
and press
(
. Using the
&
or
*
button select
A rEL b
the quadrature
function and press
)
to return to the
‘Count’ prompt in the configuration menu.
Step 4 Define function of upper display
In the example the cable position (total
display) is required on the eight digit
upper display.
Select
dI5P-1
from the configuration
menu and press
(
which will reveal if
the upper display is showing
rAtE
or
totAL
. Using the
&
or
*
button select
totAL
followed by the
)
button to enter
the selection and return to the
configuration menu.
Step 5 Activate lower rate display
A rate display is required so the lower
display must be activated.
Select
di5PLAY . 2
from the main menu
and press
(
to show the existing
setting. Using the
&
or
*
button select
on
followed by
)
to enter the selection
and return to the configuration menu.
Step 6 Position of decimal point
In this example the BA364G is required
to display total (position) with a resolution
of one decimal place and rate (speed)
with no decimal point.
Select
d . P
. from the configuration menu
and press
(
. The BA364G will show
and identify the total display with all the
digits activated.
Using the
&
or
*
button position the decimal point between
the first and second least significant
digits.
Operating the
(
button will show and
identify the rate display with all the digits
activated, Using the
&
or
*
button
position the decimal point to the right of
the least significant digit i.e. not visible.
Finally press
)
to return to the
configuration menu.
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