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FX Series Programmable Controlers Applied Instructions 5
5-68
e) The available operatin
g
modes are split into two main
g
roups, manual and automatic. There
are sub-modes to these
g
roups. Their operation is defined as:
Manual
Manual (selected b
y
device S+0)- Power suppl
y
to individual loads is turned ON and OFF b
y
usin
g
a separatel
y
provided means, often additional push buttons.
Zero Return (selected b
y
device S+1) -Actuators are returned to their initial positions when the
Zero input (S+5) is
g
iven.
Automatic
One Step (selected b
y
device S+2)- The controlled sequence operates automaticall
y
but will
onl
y
proceed to each new step when the start input (S+6) is
g
iven.
One C
y
cle (selected b
y
device S+3) - The controlled actuators are operated for
one
operation
c
y
cle. After the c
y
cle has been completed, the actuators stop at their ‘zero’ positions. The
c
y
cle is started after a ‘start’ input (S+6) has been
g
iven.
A c
y
cle which is currentl
y
bein
g
processed can be stopped at an
y
time b
y
activatin
g
the ‘stop’
input (S+7). To restart the sequence from the currentl
y
‘paused’ position the start input must be
g
iven once more.
Automatic (selected b
y
device S+4)-Full
y
automatic operation is possible in this mode. The
pro
g
rammed c
y
cle is executed repeatedl
y
when the ‘start’ input (S+6) is
g
iven. The currentl
y
operatin
g
c
y
cle will not stop immediatel
y
when the ‘stop’ input (S+7)is
g
iven.
The current operation will proceed to then end of the current c
y
cle and then stop its operation.
Note
: Start, stop and zero inputs are often
g
iven b
y
additional, manuall
y
operated push
buttons.
Please note that the ‘stop’ input is onl
y
a pro
g
ram stop si
g
nal. It
cannot
be used as a
replacement for an ‘Emer
g
enc
y
stop’ push button. All safet
y
, ‘Emer
g
enc
y
stop’ devices should
be hardwired s
y
stems which will effectivel
y
isolate the machine from operation and external
power supplies. Please refer to local and national standards for applicable safet
y
practices.