Machine System And Peripheral Devices - Omron OMNUC W Series Manual

5 Parameter Settings

5.3.3 Machine System and Peripheral Devices

5
5.3.3 Machine System and Peripheral Devices
Zero Position Output Width
(Object: 0x64, Attribute:#16; Pn806)
Use the Zero Position Output Width to set the area that will be regarded as the origin.
The setting unit is [steps].
In the following diagram, if the conditions outlined below are met, the Origin Flag in the
response data will be set to 1.
• X = | Origin point - Present position | ≤ Pn806
Present position
Absolute Position Setting
(Object: 0x64, Attribute: #17; Pn809)
The system automatically writes to the Absolute Position Setting the value of the offset from
the origin on the encoder when the origin setting in the absolute value detection system has
been completed. Normally, this parameter does not need to be set.
When using an absolute value detection system, set this value to enable adjustment of the
origin.
Origin Search Acceleration/Deceleration Time
(Object: 0x64, Attribute: #18; Pn80A)
Use the Origin Search Acceleration/Deceleration Time to set the acceleration/declaration
time constant used during origin search. The setting unit is ms. Single–step linear accelera-
tion/deceleration is used for origin search. Refer to 5.3.4 Speed, Acceleration, and Decelera-
tion for information on this acceleration/deceleration type.
The details of parameters relating to the machine system and peripheral devices are shown
below.
Coordinate Type (Object: 0x64, Attribute: #32; Pn812)
Use the Coordinate Type to set whether to use the DeviceNet Unit as a linear axis or rotary
axis.
Pn812
0
1
5-22
Origin
Pn806 Pn806
X
Description
The linear axis is designated.
The unit of present value: steps
The rotary axis is designated.
The unit of present value: steps
Position