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d.
Verify
that
the
CONTROL
indicator
at
the
lower,
front
edge
of
each
10763A
card
is
lit.
These
indicators
light
to
show
which
10763A
card
in
a
multiaxis
system
is
in
control
of
the
system
at
any
given
time.
When
the
system
is
operating
the
indicators
appear
to be
lit
at
a
reduced
level
a s
control
i s
passed
from
board-to-board.
NOTE
If
an
error
indication
is
generated
when
the
measurement
optics
are
moved,
change
the
position
of
the
'
i l l m n n r
qn
the
10760A
Counter
card
( t h t
,U1llpcl
-
position
when
shipped).
See
Figure
5-74.
Refer
to
the
10760A
unit
manual
for
additional
information
if
required.
e.
Manually
displace
the
measurement
optics
in
each
axis
in
a
positive
direction
and
check
if
the
system
comes
up
with
an
error
indication.
f.
Set
the
preset
deadpath
for each
axis
in
the
individual
10763A
cards
(refer
to
10763A
unit
manual).
g.
If
the
deadpath
switch
on
the
10763A
English/Metric
Pulse
output
card
has
a
preset
deadpath
number
set
into
it
and
the
TEST/RUN
jumper
i s
put
into
the
T E S T
posi-
tion,
the
card
will
output
these
counts.
(See
Figure
5-10.)
This
output
can
be
used
to
verify
the
card
operation.
Refer
to
the
10763A
unit
manual
for
additional
information.
h.
Interrupt
the
laser
beam
in
each
axis
and
verify
the
system
comes
up
with
an
error
indication.
Reset
between
each
beam
interruption.
i.
Connect the
twisted
pair
output
cables
(10763-60002)
to
the
system
controller
or
monitor-
ing
system.
Refer
to
the
10763A
English/Metric
Pulse
Output
unit
manual
for
additional
information.
j.
Displace
the
measurement
optics
in
each
axis
a
specific
distance
and
verify
that
the
output
counting
devices
accumulate the
appropriate
number
of
counts
for
the
distance
moved.
k.
Replace
the
front
panel
of
the 10740A
Coupler.
5.16
10781A Pulse Converter Electronics Checkout
The 10781A Pulse Converter Electronics provide a simple means of interfacing the system
optics to a customer supplied counting system. The checkout depends on how the pulse con-
verter is used. Therefore determine your system requirements and reference the 10781A Pulse
Converter until manual to determine how to checkout system operation.
Operation of this system results in Up/Down or A-Quad-B signals (which represent move-
ment of the optical devices) being generated from the 10781A Pulse Converter. Checkout con-
sists of verifying the presence of these signals and verifying that an error indication occurs
(front-panel indicator lights) when the laser beam i s blocked.
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Table of Contents
Troubleshooting
