Omron OMNUC FND Series User Manual page 152

Operation
The decimal point location is determined by the PP-01 (minimum setting unit) setting. If, for example,
you want to move to a position (incremental value) of 1,000 mm from the present position, with the
mechanical system set for 10 mm of movement per motor rotation and a minimum feed amount of
1 µm, then make the following settings.
PTP Parameter Settings
Minimum setting unit:
Pulse rate:
PTP Data Settings
Leftmost digits Pd
Rightmost digits Pd
Data Attribute (I/A Designation)
I (incremental value designation) is the method for designating the amount of movement from the
present point (the present value).
A (absolute value designation) is the method for designating the amount of movement from the
mechanical origin (the zero position).
Incremental and Absolute Movement Example (Position Data: 100)
Mechanical origin
Note 1. If the data attribute "I" is set, the position moves to the one obtained from the present value
added to 100.
If the data attribute "A" is set, the position moves to the position specified by the coordinate
value 100.
Note 2. With feeder control (UP-01: 12), the present value is cleared when the start signal turns ON,
and then positioning is executed. Therefore, set the position data based on the position where
the start signal was turned ON as 0.
PRM No. Parameter name
Pd F Speed data
This data specifies the movement speed for positioning operations.
Set an override value as a percentage with respect to the reference speed set in PP-14 and PP-15. For
example, make the following settings for a speed of 250 mm/s on condition that the reference speed is
500 mm/s.
PTP Parameter Setting
Reference speed PP-14 = 0, PP-15 = 500 (500 mm/s)
PTP Data Setting
Speed Data Pd
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PP-01 = 0.001 (minimum feed amount: 0.001 mm)
PP-02 = 1; PP-03 = 10 (10 mm of movement per motor rotation)
100
H = "I + 100"
I
0.000
L = "0.000"
I (incremental) movement distance
A (absolute) movement distance
Present value
Setting range
1 to 199
F = 50 (%)
Chapter 3
Position
Unit Factory setting
% 1
3-39