Instruction Manual PSx3xxIO
31
(c) upper mapping end (ISDU 128)
(d) upper limit (ISDU 129),
lower limit (ISDU 130),
positioning window (ISDU 131)
length of loop (ISDU 132)
8) To save the settings permanently in the EEPROM, a
“
1
”
must be written in ISDU
193. As soon as the reading of ISDU 193 returns a 0, the save is finished.
Referencing value (ISDU 127)
With the referencing value (ISDU 127), a displacement of the entire value range can
be achieved. The referencing affects all of the transferred values, i.e. the target
position, the actual value, upper mapping end and upper and lower limits.
The referencing value can be set in two ways:
1) directly by writing the referencing value in ISDU 127.
2) indirectly by writing an actual value in ISDU 67. This allows any "real" actual value
to be assigned 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 ISDU 127.
In the event of a change in the referencing value, the target position,the actual value,
the upper mapping end as well as the upper and lower limits are automatically re-
calculated.
The removal of the
motor
power supply has no influence on the internal
measuring system.
(e) Using actual value assessment factors to set the spindle pitch
On ISDU 124 (numerator factor) and 125 (denominator factor), any spindle
resolutions can be mapped:
Number of steps per revolution = 400 * (denominator / numerator)
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.
Spindle pitch and resolution can easily be set via the denominator factor.
The numerator factor is mainly used to set "manifold" 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
The numerator and denominator factor must have a value between 1 and 10000.
Содержание PS*3**IO series
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