User guide
66
AX
DRIVE
USER
GUIDE
Stand-alone
Operation
Power-up
Sequence
Execution
Using Remote
Sequence
Inputs
This
section
explains
and
provides examples
of
how to
store
sequences
to
be automatically executed
when
you power-up
the
system.
or
executed
by
remote switches. You will first
have
to
define
the
sequences
into
the
AX
non-volatile
memory.
You will
need
a
computer
or
PLC
with RS-232C
communication
capabUities for
programming
the
AX
.
A
single. pre-defined
sequence
may
be executed
on
power-up
by
issuing
the
XP
command
immediately followed
by
a
sequence
identifier
number
(1
to
7)
and
a delimiter.
For
example.
if
an
XPI
command
was
entered.
sequence
#1 would
be executed
the
next time
the
AX
was
powered up. Sequence # 1
would
continue
to execute
on
each
subsequent
power-up until
you
issue
an
XZ
command
or a new XP(o-9) conunand. Once
the
pre-defined
sequence
is
finished executing.
the
AX
returns
control
to
the
RS-232C
communications
port.
If
no
sequence
had
been
defined
as
Sequence
1. control would automatically
go to
the
RS-232C
communications
port.
The XP
command
may
be
issued
at
any
time. except during
sequence
definition. Once
an
XP
command
is entered.
it
is
automatically
saved
in
the
AX's non-volatile memory.
To determine which.
if
any.
sequence
will
be
executed
on
power-up.
issue
the
Sequence
Status
Power-up
(XSP)
command.
One
method
of
executing
sequences
is
performed
by
issuing
the
XP9
command.
The XP9
command
will
not
cause
any
sequence to be immediately executed. Once you issue
the
XP9
command.
the
AX
reads
the
sequence
select
inputs
(Pins
12-14
on
AX
I/O
connector) every time it
is
powered-up,
or
every
time
the
Z (software reset)
command
is
issued. The
status
of
the
sequence select
inputs
will
be
interpreted
by
the
AX
as
a
sequence
number
(see Table 4-2). If.
at
the
time of power
up,
the
number
represented
by
the
sequence select
inputs
is
a
valid pre-defined
sequence
(numbers
1
to
7).
the
AX
will
automatically execute
that
sequence.
When
this
first
sequence
is
finished executing.
the
AX
will once
again
read
the
sequence select
inputs
and
execute
the
next
valid sequence
number
present
on
these
inputs.
The
AX
will
continue
to
execute
sequences
in
this
fashion
until
you
issue
an
S (stop)
or
a K (kill)
command.
or
if
an
end-of- travel limit
is
encountered.
If
the
AX
reads
the
number
8.
or
any
number
that
has
no
sequence
defined. it will wait
until
the
status
of
the
inputs
changes
to a valid. pre-defined sequence.
Sequence
SEa 1 SEa 2 SEa 3
1
ON ON
ON
2
OFF
ON
ON
3
ON
OFF
ON
4
OFF
OFF
ON
5
ON ON
OFF
6
OFF
ON
OFF
7
ON
OFF
OFF
8*
OFF
OFF
OFF
* Non-valid sequence
OFF -
open
switch
(not
pulled
to
ground)
ON
- closed switch
(Dulled
to
around)
Table 4-2.
Sequence
Select
Inputs