YASKAWA SGDV User Manual page 146

5 Operation
5.9.5 Absolute Data Reception Sequence
Coordinate
value
Value of M
Final absolute data P
P =M× R+P
E
P =M
S S
P =P
M E
Signal
Note: The following formula applies in reverse mode. (Pn000.0 = 1)
P
P
P
5-66
Reference position
- 1 0
±0
-1
P
is calculated by following formula.
M
O
× R+P
'
S
-P
S
P
Current value read by encoder
E
M Rotational serial data
P
Number of initial incremental pulses
O
P
Absolute data read at setup (This is saved and controlled by the host controller.)
S
M
Rotational data read at setup
S
P '
Number of initial incremental pulses read at setup
S
P
Current value required for the user's system
M
R
Number of pulses per encoder revolution (pulse count after dividing, value of Pn212)
= -M × R + P
E O
× R + P
= M '
S S S
= P - P
M E S
(at setup)
+1
+1
M × R
P
E
P
S M
Meaning
Analog
Current position
+2 +3
+2
P
O