YASKAWA yasnac i80m Instruction Manual page 622

3.6
VARIOUS OPERATIONS AND FUNCTIONS
(Cont'd)
(2)
Function description
The same operation method
of reference point
return
is employed as
the
.conventional -method. .
.
By using the
concept
of imaginary phase-C. this function can change the
relation between the zero-point LS signal and phase-C pulse positions or
the relation between the zero-point
LS signal arid
reference point positions
only by rewriting the
parameters
instead of
adjustment of zero-point LS
signal position. Additionally, by adjusting the final traveling distance.
the distance from the zero-point LS signal
to
the reference point can be
kept constant.
That
is;
it is possible
to set
the reference point position
at an arbitrary
constant
distance from the
zero-point LS
signal,
disregarding
the phase-C pulse position.
ZERO POINT
LS SIGNAL
1 J
1
n
PHASE C
'
IMAGINARY_T1
_
!
PHASE C
1
1
I
I
SHIFT DISTANCE
TRAVELING
DISTANCE
Fig.
3.6.5 Imaginary Phase-C
Shift Distance
-
598
-