Omron OMNUC FND Series User Manual page 141

Operation
Motor sensor resolution:
OMNUC U Series 30 to 750 W with incremental encoder:
OMNUC U Series 30 to 750 W with absolute encoder:
OMNUC U Series 1 to 2 kW with incremental encoder:
OMNUC U Series 1 to 2 kW with absolute encoder:
OMNUC U Series with absolute encoder:
OMNUC U-UE Series with incremental encoder:
OMNUC H Series with incremental encoder:
OMNUC M Series with resolver:
Note The displayed value will be changed after PP-01 to PP-03 have been set and the power has been
turned OFF and back ON again.
PRM No.
PP-06 Origin compensation (left-
most digits)
PRM No.
PP-07 Origin compensation (right-
most digits)
These parameters are used to set the mechanical origin to any position.
Set the number of motor sensor pulses for movement between the origin search completion position
and the mechanical origin.
When origin teaching is executed, the data is automatically written to these parameters and the teach-
ing position becomes the origin.
After these parameters have been set, the mechanical origin can be moved by executing an origin
search.
PRM No. Parameter name
PP-08 Compensation (leftmost
digits)
PRM No. Parameter name
PP-09 Compensation (rightmost
digits)
These parameters specify the amount of mechanical axis movement for compensation during posi-
tioning operations.
The decimal point location is set by PP-01 (minimum setting unit).
For PTP control (UP-01: 11 or 13), this compensation becomes backlash compensation; for feeder
control (UP-01: 12 or 14), it becomes slip compensation.
Backlash Compensation
Set the amount of play (backlash) for a mechanical system such as gears or chains.
When movement is in the reverse direction from that of the previous operation, stopping precision can
be improved by feeding an exact amount of compensation to absorb the backlash in the mechanical
system.
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Parameter name
Parameter name
Setting range
–9,999 to Pulse
9,999
Setting range
0 to 9,999 Pulse
Setting range
0 to 9,999 Mechanical
axis move-
ment
Setting range
0 to 9,999 Mechanical
axis move-
ment
Chapter 3
8,192 pulses/rotation
4,096 pulses/rotation
16,384 pulses/rotation
32,768 pulses/rotation
4,096 pulses/rotation
4,096 pulses/rotation
8,000 pulses/rotation
24,000 pulses/rotation
Unit Factory setting
0
Unit Factory setting
0
Unit Factory setting
0
Unit Factory setting
0