Horner APG XLt OCS - Manual (Page 44)

CH. 10 MAN0878-04-EN
August 12, 2009 Page 44 of 100 ECN # 979
The accumulator is reset to zero on the specified edge if rotation is clockwise (as shown in figure
10.1 above). However, if rotation is reversed, the accumulator is alternately set to Counts per
rev – 1 on that same physical edge. When direction is reversed, that same physical edge is seen
(by the internal decoder) as having the opposite edge polarity as shown below.
Mode Direction
A
(HSC1)
B
(HSC2)
Marker
(HSC3) Reset
Value
Async, Reset on rising edge Rising 0
Async, Reset on falling edge Falling 0
Async, Reset on both edge Both 0
High, Reset on 1 rising Clockwise Rising High 0
“ Counter Falling High CPR - 1
Low, Reset on 1 rising Clockwise Rising Low 0
“ Counter Falling Low CPR - 1
High, Reset on 1 falling Clockwise Rising High CPR - 1
“ Counter Falling High 0
Low, Reset on 1 falling Clockwise Rising Low CPR - 1
“ Counter Falling Low 0
High, Reset on 2 rising Clockwise Rising High 0
“ Counter Falling High CPR - 1
Low, Reset on 2 rising Clockwise Rising Low 0
“ Counter Falling Low CPR - 1
High, Reset on 2 falling Clockwise Rising High CPR - 1
“ Counter Falling High 0
Low, Reset on 2 falling Clockwise Rising Low CPR - 1
“ Counter Falling Low 0