Parker Hannifin S.p.A S.B.C. Division
SLVDN User’s Manual
Page 100 of 181
10.6.4.
Linear engage CAM
With OPM14 exists the possibility to program a linear engage cam on master module.
It’s necessary to define the space to use of the module master in which executing the engage
cam of the slave. Program the Pr132:133 parameter like start point and the Pr126:127
parameter like final point; setting the bit Pb150.11 reserves the start of the slave in the start
point of the module master programmed. It is necessary that in this point the value of
Pr134:135 is equal to the position caught from the slave to end of the ramp, that is to start of
the ramp the slave must be found in advance regarding the engage point in phase with equal
distance to Pr136:137. The bit Pb150.11 is automatically set to zero after the engage.
In the final point of the engage cam, automatically is activated the cam table wrote in the
drive. The event is marked with the bit b150.12=1 (to the start of the ramp); after the
activation of the table the b150.12 is automatically set to zero.
As to the engage phase needs to define one internal point to the master module for the start of
the disengage ramp.
To difference of the engage cam executed, the disengage phase is a simply deceleration ramp
and comes executed through the positioning of the OPM14.
The release point is written in the Pr128:129 parameter (in step module master). Activating
bit 150,13 reserves the start of disengage of the slave in the point programmed; the bit
Pb150.13 is automatically set to zero after the disengage. Activated the disengage phase on
the programmed point it is necessary to define the point of stop in which stopping the slave
(in step module slave); this point of stop is written in the Pr118:119 parameter (in step
module slave).
This space must be sufficient to permit to stop the axis with the deceleration ramp
programmed on the Pr109; in the start point in Pr128:129 and the final position point in
Pr118:119 are too much near (pay attention to master/slave module conversion), is necessary
to add to the final position one or more slave modules: Pr118:119 (slave module) + final
position internal at the slave module.
The compilation of the cam table is made in background and at the conclusion Pr102 is
automatically set to zero; pay attention that if b40.2=0 the Pr102 parameter comes forced
however to zero.
Moreover there are two conditions for a corrected operation of this engage cam:
1.
The final point of the disengage ramp is not accidentally chosen in the module slave,
but direct consequence of the chosen space of the engage cam. The slave axis must be
situated in advance regarding the position of Pr134:135 (when the master is in
Pr126:127 position) of the quota:
136
:
137
Pr
110
:
Pr111
2
114
:
115
Pr
)
132
:
133
Pr
126
:
127
Pr
(
quote
Advance
=
•
•
−
=
2.
The speed in the points of passage between cam and deceleration ramp must be
concord. (Pr108= cam speed)
