Parker Hannifin S.p.A. Divisione S.B.C. user’s manual TWIN-N and SPD-N
79
7.4 Electronic cam (operating mode 14)
Operating mode 14 is expressly designed to meet the needs of packaging machines that
require electronic cams. This program is in the drive’s basic configuration and it can be
programmed by selecting Pr31=14 and b99.11=1, parameters to select the operating mode and
to select default parameters of operating mode.
By setting b40.2 to 1, the OPM14 will be turned on, and using opportunely the mode selector
Pr102, is possible select the source for the position loop. The possible sources are:
NO
source
positioning
CAM1
Speed mode
Reference position
Mode selector
Pr102
0
1
2
3
In OPM14, counters for the position loop are visualized to module (Pr60:61; Pr62:63), and the
value of the module is set on the parameter Pr114:115.
7.4.1 Positioning
This is a trapezoidal profile generator, with the following user-definable parameters:
speed profile
acceleration and deceleration ramp
final value in motor step
The parameter referred to the final position is absolute. The difference between the final
position (Pr119:118) and the reference position (Pr60:61), generates the direction of the
movement.
The generator of the profile begins when the Pr102 is equal to 1, and when reached the
position, the mode selector is automatically set to zero. Alternatively with the bit b150.3=1
(and Pr102=2), the quota written in the final position comes added algebraically with the
reference of the master in the CAM1 generator. When the profile is finished, the bit b150.3 is
automatically set to zero; it can be activated again if another quota is loaded in the final
position (Pr119:118).
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