Omron CS1W-HCA12-V1, Operation Manual

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146
Functions Compatible with Servo Drivers with Absolute Encoders
Section 7-8
Note In ABS ring mode, the ABS number of rotations present value (AR 04/05) is
not used; only the initial incremental pulses are used.
The initial incremental pulses are the data of an amount treated as the angle
from an origin.
7-8-7 ABS Present Value Preset
The absolute encoder's state (ABS number of rotations present value (AR 04
to 05) and number of initial incremental pulses (AR 00 to 01)) at the SEN sig-
nal being turned ON can be reflected in "high-speed counter present value 1
(AR 00 to 01)". This function becomes available by turning ON "ABS present
value preset (AR 09 bit 06)". The "ABS present value" is stored in "high-speed
counter present value 1 (AR 00 to 01)". Additionally, ABS present values vary
depending on the operating mode. See
4-1-5 ABS Present Value (p.4-5) for
details.
7-8-8 ABS Offset Preset
The present value to be defined as an origin is obtained from the ABS number
of rotations present value (AR04 to 05) at the time and the number of initial
incremental pulses. The value can be stored in the ABS offset value (DM
6645/6646). The value read from an absolute encoder at the time is defined
as a machine (application) origin. This function becomes available by turning
"ABS offset preset (AR 09 bit 05)" OFF once, then ON again.
0 7FFF
ABS encoder's
position
ABS Present Value
Point of reference
(ABS offset)
P
0
P
s