17.2 Operation of Digital Operator
17.2.2 Operation of Utility Functions
17-24
Absolute Encoder Origin Setting (FnB09)
This utility function replaces the current position with a specified position. Also updates PnB25
with the absolute position offset value to achieve the position specified by this utility function.
Preparation
The following conditions must be met to perform the absolute encoder origin setting.
•
The write-prohibited setting (Fn010) must not be set to write-protect parameters
.
•
Distribution of position references must not be in progress.
•
The absolute position offset value must not be outside the range for PnB25.
•
An absolute encoder must be connected and Pn002 must be set to n.
0
.
Operating Procedure
DANGER
This function replaces the coordinates of the reference position and is therefore very dangerous. After exe-
cuting this function, check that the new coordinates match the reference position before starting operation.
•
If the settings for any of parameters Pn20E to Pn210, Pn205, or PnB20 to PnB25 have been
changed, turn the control power supply off and back on to bring the settings into effect before
executing operation.
•
The absolute position offset value is saved in parameter PnB25, so do not rewrite this value.
Step
Display after Operation
Keys
Operation
1
Press the
key to open the Utility Function
Mode main menu, and move the cursor with the
keys to select FnB09.
2
Press the
key to view the FnB09 operation
screen.
3
Move the cursor with the
keys, and
change the setting for the position whose current
position is to be replaced with the
keys.
4
Press the
key to start origin setting.
*
Do not turn off the control power supply until origin setting
has been completed normally.
To cancel the FnB09 operation, press the
key before
pressing the
key. The display returns to the Utility
Function Mode main menu without executing the operation.
5
–
When origin setting has been completed normally,
“Done.” is displayed.
6
Press the
key to return to the Utility Function
Mode main menu.
7
Check that the current distributed position (PUN) and the current (actual) motor position (PFB) have
changed to the specified positions by executing FnB0A.
*
If the
key is pressed in an operation prohibited state, “Error.” is displayed for approximately 2 seconds and then the
display returns to the FnB09 operation screen. In this case, make the setting again by referring to
Important
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