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SECTION
V
OPERATION
3.1
INITIAL
CHECKOUT
To
ensure that the generator
is
operating properly,
make
the
power and
interface
connections
(Section
2),
and
operate the
generator, function-by-function, as described
in
the following paragraphs.
3.2
CONTROLS, INDICATORS
AND PROGRAMMING
Programming
instructions
and
considerations
for
the
Model 158 and 159
generators
are
the
same, except
for
keyboard
enable control
that
only
applies to
the
Model 159
generator.
The
Model 159
has
a
20-pushbutton
front panel
keyboard
to
provide the
same
control
as
the
Model 159
or
158
20
remotely
programmed
ASCII
character bytes.
The 20
generator controls
and
their
various
code
conversions
are
listed
in
Table
2-2.
The Model
159
front panel controls
and
indicators are
shown
in
Figure
3-1
3.2.1
Power
Power
is
turned
on and
off
with the
PWR
pushbutton.
When
the
power
is
turned
on, the generator
is
automatically
addressed
and
is
ready
to
accept
commands.
If
a
different
generator
is
to
be
addressed, use the
UNIT
control
(refer
to
Paragraph
3.2.4).
Also,
when
the
power comes
on, the
output
is
automatically
disabled to
allow the loading
of
a
program;
line
transients
on
the
output
are also
avoided.
The
generator
must
get
an
ON
command
to
provide an
output
(refer
to
Paragraph
3.2.5).
3.2.2 Indicators
The
Model 159
indicators
turn
on
to
indicate
the various
functions,
modes,
quantities,
sign,
and
address
programmed;
the
numerals
displayed are
significant as
frequency,
ampli-
tude
or
offset,
but only
one
category
at
any one
time.
The
3-digit
number
is
always
a
1
-digit
whole
number
and
a 2-
digit
decimal.
The
three
digits
are
displayed
in
order of
entry, shifting
right-to-left as
shown
in
Table
3-1
.
The
single
digit
is
a
power
of
ten.
(Only
the
last
three entered
significant
Figure
3-1.
Model 159
Waveform
Generator
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