Setting The Origin - Omron H8PS Manual

Setting Resolution and Rotation
Direction
One of three resolutions can be selected for the Encoder connected
to the H8PS: 256, 360, or 720. The resolution and display angle are
set here.
Turn OFF the power supply.
Set the display angle and the
Encoder resolution.
Open the front cover at the lower part of the H8PS and
set pins 3 and 4 on the DIP switch.
CW
1 2 3 4
ON
OFF
CCW Not used.
Note 1: Default settings are shown in reverse type.
Note 2: When using an Encoder with a resolution of 256, displaying 360
directly is not possible. The H8PS thus provides a convenient
setting that enables converting the display and settings to 360
when using an Encoder with a resolution of 256. When using a
360 display, however, some angles will not be displayed.
Check the rotation direction of the machine (Encoder).
Turn ON the power supply.
Turn the Encoder in the actual direction of operation and
confirm that the rotation display monitor turns clockwise.
If the monitor turns counterclockwise, turn OFF the power supply
and change pin 1 on the DIP switch to CCW.
CW
(See note.) 1 2 3 4
ON
OFF
CCW Not used.
Note: Default setting.
Connect the machine (Encoder) and turn ON
the power supply.
End of preparations.
Note: Changes to DIP switch settings are enabled when the power is turned ON.
Display
3 4
Resolution
angle
256 256
ON ON
256 360 (See note 2.)
ON OFF
360 360
OFF ON
720 360
OFF OFF
Rotation Display Monitor
Display
3 4
Resolution
angle
256 256
ON ON
256 360
ON OFF
360 360
OFF ON
720 360
OFF OFF

Setting the Origin

The origin of the Cam Positioner is set to match the origin of the
machine (Encoder). The same origin is used for all banks.
(The bank function is supported only for 16-/32-output models.)
Example: Setting the Present Angular Position of 150° to 0°
Change the mode.
Set the mode switch to PRGM.
Set the programming
Set the programming mode switch to TCH.
mode switch.
Mode
PRG
TST
RUN
Set the machine to its origin.
Turn the machine (Encoder) to the position of the desired
origin (150 in this example).
CAM STEP
Specify the origin.
Press the ORIGIN Key. (See note.)
In approx. 1 s, the present angular position display will
change to 0 and the previous display will return.
CAM STEP
Note: With 16-/32-output models, the origin input
from the terminal block can be turned ON to
specify the origin.
End
Cam Positioner
Programming mode
TCH
MAN
PRG
PRG
H8PS
21