Setting up Compax3
Defining the reference system
42 I11 T11 192-120101 N6 - March 2004
Unit: mm
gear transmission ratio 7:4 => 4 load revolutions = 7 motor revolutions
Number of teeth for pinion: 12
Tooth spacing: 10 mm
Travel path per motor revolution = 4/7 * 12 * 10mm = 68.571 428 5 ... mm (this
number cannot be expressed exactly)
Instead of this number, you have the option of entering it exactly as a numerator
and denominator:
Travel distance per motor revolution = 480/7 mm
For "travel distance per motor revolution" that can be represented exactly, enter 1
as the denominator.
Travel distance per motor revolution / pitch
Counter
Unit: unit of measure Range: depends on the unit selected Standard value: depends
on the unit selected
Resolution: 0.000 000 1 (7 places after the decimal point)
Unit Division Standard value
Increments* 10 ... 1 000 000 1024
mm 0,010 000 0 ... 2000,000 000 0 1,000 000 0
Degrees 0,010 000 0 ... 720,000 000 0 360,000 000 0
Denominator
Unit: - Range: 1 ... 1 000 000 Standard value: 1
Integer value
* The ”Increments” unit applies only to position values; speed, acceleration and jerk
are specified in this case in revolutions/s, revolutions/s
2
and revolutions/s
3
(or
pitch/s, pitch/s
2
, pitch/s
3
).
Rotation direction reversal
Unit: - Range: no / yes Standard value: no
Reverse direction inverts the sense of rotation, i.e. the direction of movement of the motor
is reversed in the case of equal setpoint.
For applications in which the positioning range is repeated, reset mode is made
available. Examples include rotary table applications, conveyor belt, etc. .
After the reset path (which can be specified exactly as numerator and
denominator (see on page 41)) the position values in the Compax3 are reset to 0.
Conveyor belt (from the "Conveyor belt" example) with reset path
74
10mm
300 mm
M
7
4
Reset mode
Example:
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