ACU-RITE MILLPWR G2, Technical Manual

Page: 315 / 546

5.12 Reference Marks 315
Linear
measurement
through rotary
encoder Functional sequence when MP_refType=Switch, changing Dir
For linear measurement using a rotary encoder, a reference pulse is produced
at each revolution of the encoder. Ensure that during referencing the same ref-
erence pulse is always evaluated. This can be realized with the trip dog for ref-
erence end position.
Trip dog for
Reference end
position closed
Press the external START key
No
Yes
Machine stops
Machine m oves in the traverse
direction fro m MP_refDirection at
the speed fro m MP_refFeedHigh
to the trip dog for reference
end position
Machine m oves in the inverted traverse direction
fro m MP_refDirection at the reduced speed
fro m MP_refFeedLow
After the trip dog for reference end position has been
opened, the first reference pulse is evaluated
Machine m oves in the inverted traverse direction fro m MP_refDirection at the
reduced speed fro m MP_refFeedLow After the trip dog for reference end position has been opened,
the first reference pulse is evaluated
Reference pulses
Desired reference pulse
Closed
Open
Traverse direction MP_refDirection
Trip dog for reference
end position