Driver Home Position Return Method - Mitsubishi Electric MELSEC iQ-R Series User Manual

Driver home position return method

The home position return is executed based on the positioning pattern set on the driver (servo amplifier) side (hereafter called
the "driver side").
The following shows the procedure.
1.
Set the home position return parameters of the servo amplifier.
2.
The "machine home position return" is started.
3.
The operation starts according to the speed and direction set in the servo amplifier.
4.
The "home position" is established and the machine stops.
5.
If "a" is set as "[Pr.45] Home position address", "a" will be stored as the current position in "[Md.20] Feed current value"
and "[Md.21] Machine feed value" which are monitoring the position.
6.
The machine home position return is completed.
*1 Change the setting as necessary by using the servo transient transmission function. For the setting change method, refer to the manual
of the servo amplifier.
MR-J5(W)-G: MR-J5-G/MR-J5W-G User's Manual (Parameters)
The method for establishing a "home position" by a driver home position return method differs according to the
setting of the servo amplifier. For details, refer to the manual of the servo amplifier.
Operation chart
1.
The machine home position return is started.
2.
The feed current value is continuously updated by follow up processing during the home position return.
3.
The home position return complete flag ([Md.31] Status: b4) turns from OFF to ON and the home position return request
flag ([Md.31] Status: b3) turns from ON to OFF.
[Cd.3] Positioning start No.
Positioning start signal [Y11]
Busy signal [X11]
Home position
return request flag
([Md.31] Status: b3)
Home position
return complete flag
([Md.31] Status: b4)
[Md.26] Axis operation status
[Md.514] Home position return
operating status
When the driver is set to the home position
return method such as Method 35 or 37
(Data set method), the home position
return is completed immediately after the
execution. Thus, the operating status may
not be able to be checked.
2 HOME POSITION RETURN CONTROL
36
2.2 Machine Home Position Return
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V
Motor speed
Proximity dog
Zero signal
ON
OFF
OFF
OFF
OFF
0: Standby 5: Analyzing
FFFFH
1H: Home position return is interrupted or not started
Other than MR-J5(W)-G: "3H" is stored if the home position has been established.
MR-J5(W)-G: "1H" is stored if the home position has been established.
search engine
*1
9001
ON
ON
7: Home position return
1H 0H: Home position return is in progress
3H: Home position return is
completed successfully
t
ON
0: Standby
3H FFFFH
FFFFH: The servo amplifier is not set to
the home position return mode