BEKA BA564G, Manual, Page: 25 / 38

7. CONFIGURATION EXAMPLE
A BA564G 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 BA564G 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
BA564G Counter front panel. Similarly the grand total
is not to be resettable from the BA564G Counter front
panel. To prevent tampering the instrument
configuration menu is to be protected by security code
1209.
The BA564G 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 BA564G 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 BA564G 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
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 BA564G 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 BA564G 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 BA564G 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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