YASKAWA yasnac i80m Instruction Manual page 625

-
NOTE
-
1. This function is
optional. Therefore, it is
not
effective if
the option
is
not set.
2. When the reference point
return
is executed by selecting
this function,
do
not
fail
to retract
the deceleration limit switch
sufficiently. If the
distance beyond the deceleration limit switch is
too short, an alarm
(2061 to 2065: reference
point
return
area
error)
occurs.
3. If the imaginary phase-C
shift distance
(pm4551 to 4555) or
reference
point
return
traveling distance
(pm4451
to'
4455)
set
value is
not proper.
retraction is
generated and
an
alarm
(2091
to
2095: reference point
return parameter error) occurs.
In this case, adjust
the
parameter
by increasing the
reference point
return traveling
distance
set
value,
etc.
(Example
1) When the distance from the deceleration limit switch
to
the imaginary phase-C pulse becomes
larger by increas¬
ing the imaginary phase-C shift distance.
. (Example
2)
When the final traveling
distance
set
value is minus and
exceeds the distance from the deceleration limit switch
to
the imaginary phase-C pulse.
4: When the deceleration limit switch is
turned OFF and then ON
at
reference
point return
before
completion of phase-C latch, alams 2151
to
2155; reference point return phase-C
creation
error(axes
X
to
5th)
occur.
E
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601