Table of Contents
Advertisement
3.
SPECIFICATIONS
MELSEGA
Backlash compensation is valid after zero return. After redefining the
backlash compensation, always zero the system.
I
-
zero return direction
Backlash compensation actual value
Fig.
3.4 Backlash
Compensatlon
For the backlash compensation amount, the range
of the number of
output pulses differs
in accordance with
the unit
to be set in the
parameter.
Setting Units
Number of Output Pulses
PLS
mm
0 to
255
'0 to 65535
inch
degree
The symbol indicates the value when the travel distance per pulse is
set to
1.
(7) Upper stroke limit
Defines the upper limit value of machine travel.
The stroke limit is checked before each positioning operation
and if
outside the allowed range, positioning is halted.
During jog operation and manual pulser inching, the stroke limit is
ignored.
( 8 ) Lower stroke limit
Defines the lower limit value of machine travel.
The stroke limit is checked before each positioning operation and
if
outside the allowed range, positioning is halted.
During jog operation and manual pulser inching,
the stroke limit is
ignored.
The lower stroke limit during operations in the speed control mode and
the speed/positioning control switching mode is considered 0, indepen-
dently of the parameter set value.
However, set the lower stroke limit in the range of 0 to the upper stroke
limit to prevent a parameter setting error.
The current values in the AlSD71 buffer memory area becomes the following numerical values:
Operating Modes
Current Values
I
(X axis: addresses
602 and 603
Y axis: addresses
604 and 605)
I
Speed control mode Always
0
1
Speed,positioning
Speed control mode: always 0
Increases sequentially from
0.
switching mode
Positioning control mode
3 -
14
Advertisement
Table of Contents
