S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
68
Example 13: 5 positioning
(FILE: E004.HPD)
Referring to the figure below, assume you need to move the carriage to 5 different positions
selected by means of three digital signals.
The positions are set in parameters Pr80...Pr89 in resolver steps taking the position of the
proximity sensor as the zero value. When the machine is powered up the drive remains in standby
mode awaiting the homing execution command: when a pulse command is supplied to digital input 2
of the HPD N drive the motor shaft will turn at the speed set in parameter Pr5 until the proximity
switch provides a signal at digital input 3. At this point digital inputs 4, 5 and 6 select the position to
be reached, while a pulse on digital input 1 makes it possible to perform positioning on a trapezoidal
profile. The following table shows the relationship between parameters Pr80...Pr89 and the encoding
on the 3 digital inputs; for example, only input 4 on one selects position 1 and the distance in steps
between the zero axis point and position 1 is set in steps, bearing in mind that one revolution of the
motor shaft corresponds to 4096 steps.
After having set the default values, set the following parameters on the HPD unit:
Pr5=5 homing speed
Pr31=9, b99.11=1, b40.2=1, b40.12=1
Pr81:80= dimension 1
Pr83:82= dimension 2
Pr85:84= dimension 3
Pr87:86= dimension 4
M
MOTOR
PROXIMITY SENSOR
CARRIAGE
0
1
2
3
4
5
POSITIONS:
Input 6
Input 5
Input 4
Position
Dimension
0
0
1
1
Pr81:80
0
1
0
2
Pr83:82
0
1
1
3
Pr85:84
1
0
0
4
Pr87:86
1
0
1
5
Pr89:88
other combinations
0
axis zero
