Instruction Manual PSx3xxPN
30
d) upper limit (Par. 42),
lower limit (Par. 43),
positioning window (Par. 44),
length of loop (Par. 45),
drag error (Par. 46)
8) In order to save the settings permanently in the EEPROM, write 1 to Par. 96. As
soon as reading of Par. 96 shows 0, the saving is finished.
Referencing value (Par. 40):
With the help of the referencing value (Par. 40) a shift of the whole range of values
can be reached. The referencing process affects all transferred values, i.e., the target
value, actual value, upper mapping end and upper and lower limit.
There are two ways of setting the referencing value:
1) Directly, by writing the referencing value to Par. 40.
2) Indirectly, by writing an actual value to Par. 3. This makes it possible to assign any
“true” actual value to the current, physical actual value. The resulting difference is
then the referencing value. This value will immediately be included in calculations
for each transferred value and can also be read via Par. 40.
When changing the referencing value, automatically the target value, the actual value,
the upper mapping end and the upper and lower limit are re-calculated.
The removal of the
motor
power supply has no affect on the internal
measuring system.
3.7
Using position scaling factors to set the spindle pitch
Par. 38 (numerator factor) and Par. 39 (denominator factor) can be used to represent
any desired spindle pitch:
factor
denom
factor
numerator
revolution
per
steps
of
number
.
*
400
Both factors are set to a value of 400 by default, resulting in a resolution of 0.01 mm
at a spindle pitch of 4 mm.
The denominator factor serves as a simple means of setting the spindle pitch and
resolution.
The numerator factor is primarily used for setting “unlevel” resolutions.
Examples:
Spindle pitch
Resolution
Numerator
factor
Denominator
factor
4 mm
1/100 mm
400
400
1 mm
1/100 mm
400
100
2 mm
1/10 mm
400
20
Numerator and denominator factors may take on values between 1 and 10,000.
