Table of Contents
Advertisement
3.
,
SPECIFICATIONS
...
~
,
MEl;!3E&A
(9) Error compensatlon
When the set value and an actual feedrate differ is called error compen-
sation.
When the unit is mm, an error compensation per m (per 100 inches
if
the
unit is inches and per 100 degrees
if
the unit is degrees) is set to 0, and
the feedrate of any set value is transmitted. (Automatic start) Then, the
actual feedrate (A) is measured, and the error compensation amount and
backlash compensation amount are calculated as indicated below.
When the unit is mm
Error compensation amount (IO-lpm)
=
When the unit is inches
Error compensation amount
(1
O4
inch)
=
Setvalue(inch)
-
107
A (inch)
When a unit is degrees
Error compensation amount
(IO5
degree)
=
Set value(degree) -
x
,
07
Set the numerical value calculated in the following expression as the
backlash compensation amount when there is a machine error.
.
Backlash compensation= Backlash compensation actual value
x
A
Set value
(1 0)
Manual pulser inching travel increment
The AlSD71 does not have a manual pulser inching function.
Therefore, the travel distance per pulse of a manual pulser is not used.
When setting a parameter by a peripheral device or AD71TU, an error
occurs if a numerical value outside the setting range is set. Therefore,
always set numerical values within the setting range.
(1 1 )
Acceleration and deceleration times
Defines the period
of time from the start of positioning to when the
speed limit value specified in the parameter is reached. (Refer to Fig.
3.5.)
Parameter speed limit value
- : Speed if starting bias speed has
been set
-
-
-
:
Acceleration and deceleration
speeds if starting bias speed
= 0
I
ration time
Set
acceleration
time
Set
deceleration
time
Fig. 3.5 Acceleration and Deceteratlon Times
The acceleration time is the same
as
the deceleration time.
The acceleration and deceleration
ale
controlled at a constant value.
They cannot be set differently.
3 - 15
Advertisement
Table of Contents
