Parker Hannifin S.p.A Divisione S.B.C. user’s manual TWIN-N and SPD-N
88
7.5 Electronic cam (op. mod. 11)
Operating mode 11 is expressly designed to meet the needs of packaging machines that
require 2 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.
Some of the most widely used motion functions of industrial automation are available within
this mode. Namely, this operating mode includes the following:
-
position reference generator (positioner)
- speed mode generator
- cam1 generator
- cam2 generator
The resulting position reference is incremental and is generated by algebraic sum of the
references (see the following picture).
Positionator
Cam 1
Cam 2
Resulting position
reference
+
+
+
This diagram allows to identify a general flow in operating mode 11. If you carefully analyze
this mode, you will see that the programmer can use several enabling commands
(programmable bits ) at different levels in order to address the flow of the generated position
reference (or references), in several display modes. For instance, for each generator a position
reference can be enabled in the position loop or into a general position counter.
Positioner
reference
generator
Position loop
Incremental global
counter
Modul
counter
Counter
at modul
X
Y
When the position reference of at least one generator is enabled in the position loop, the
reference loading into a global counter defined by module is automatically enabled.
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