Setting
up Compax3
Positioning via digital I/Os
84
192-120101 N11 C3I11T11 November 2007
Unit: mm
Gear transmission ratio 7:4 => 4 load revolutions = 7 motor revolutions
Number of pinions: 12
Tooth separation: 10mm
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
Numerator
Unit: Unit of Travel
Range: depending on the chosen unit
Standard value:
depending on the
chosen unit
Resolution: 0.000 000 1 (7 decimal places)
Unit of Travel
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
Inch
0,010 000 ... 2000,000 000
1,000 000
Denominator
Unit: -
Range: 1 ... 1 000 000
Standard value: 1
Integer value
*
The unit "increments" is valid only for position values.
speed, acceleration and jerk are specified in this case in revolutions/s,
revolutions/s
2
and revolutions/s
3
(resp. pitch/s, pitch/s
2
, pitch/s
3
).
Invert Motor Rotation/Direction Polarity
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.
Reset mode is available for applications in which the positioning range repeats;
some examples are: Rotary table applications, belt conveyor, ... .
After the reset travel distance (can be specified exactly as
numerator and
denominator
(see page 83))) the position values in Compax3 are reset to 0.
Conveyor belt (from the "Conveyor belt" example) with reset path
7
4
10mm
300 mm
M
7
4
A reset path of 300 mm can be entered directly with numerator = 300 mm and
denominator = 1.
Reset mode is not possible for linear motors.
Please do use the reset function only in normal mode!
It is not appropriate to use the reset function in continuous mode.
Reset mode
Example:
Note:
