UD70
Issue code: 70nu2
8-30
Features
Using The Marker Pulse To Enable The Cam Table
The cam table can be enabled by using the auxiliary encoder marker pulse
input, by setting
_
Q32%.12 = 1. When the marker pulse occurs,
_
Q32%.4 is
set to 1,
_
Q32%.12 is reset to 0, and the points defined by the CAM function
will be used to calculate the required position reference.
8.11 Reference
Switching
The Position Controller provides the facility to switch between the various
methods of control, without any discontinuities to the slave axis profile.
Switching to Position Control
When running in speed control, digital lock or cam table control, the axis
stopping position is continuously re-calculated, and written to
_
Q2%. The
current ramp settings in
_
Q12% and
_
Q13% are used to calculate the axis
stopping position. S-ramps cannot be used when switching into position
control.
NOTE: when a switch from digital lock control to position control occurs, a
return position (
_
Q40%) will be written once into
_
Q2%, over-writing the
calculated stopping position. This function can be disabled by setting
_
Q32%.29 = 1, so the axis will move to the calculated stopping position.
Switching to Speed Control
When the reference source is switched from position control, digital lock or
cam table control to speed control, the speed reference will ramp up or
down to the set speed reference,
_
Q3%. The ramps set in
_
Q12% and
_
Q13% are used to ensure a smooth switch. S-ramps can selected
(
_
Q32%.19 = 1) when switching into speed reference control.
Switching to Digital Lock Control
When digital lock is enabled (
_
Q32%.2 = 1), the position controller locks the
slave axis position to the master reference from that instant. The slave axis
will accelerate to the master axis speed, multiplied by the ratio set in
_
Q11%.
If rigid lock is selected (
_
Q32%.27 = 0), the slave axis will accelerate to the
maximum digital lock speed (
_
Q15%) until position is recovered. The speed
will then reduce to the master line speed, multiplied by the ratio set in
_
Q11%.
Summary of Contents for UD70
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Page 14: ...UD70 Issue code 70nu2 2 6 Installation...
Page 42: ...UD70 Issue code 70nu2 4 20 DPL programming...
Page 98: ...UD70 Issue code 70nu2 7 22 Reference...
