Data Set Method - Mitsubishi Electric MELSEC iQ-FX5 User Manual

Data set method

The following shows an operation outline of the home position return method "data set method".
The "Data set method" method is effective when a "Proximity dog" is not used. It can be used with absolute position system.
With the data set method home position return, the position where the machine home position return has been carried out, is
registered into the Simple Motion module as the home position, and the feed current value and feed machine value is
overwritten to a home position address.
Use the JOG or manual pulse generator operation to move the home position.
Operation chart
Home position return start
([Cd.184] Positioning start signal)
Precautions during operation
• The zero point must have been passed before the home position return is carried out after the power supply is turned ON.
If the home position return is carried out without passing the zero point even once, the error "Home position return zero
point not passed" (error code: 197AH) will occur. When the error "Home position return zero point not passed" (error code:
197AH) occurs, perform the JOG or similar operation so that the servomotor makes more than one revolution after an error
reset, before carrying out the machine home position return again. However, if selecting "1: Not need to pass servo motor
Z-phase after power on" with "Function selection C-4 (PC17)", it is possible to carry out the home position return without
passing the zero point.
• The home position return data used for the data set method is the "home position return direction" and "home position
address". The home position return data other than that for the home position return direction and home position address is
not used for the data set method home position return method, but if a value is set the outside the setting range, an error
will occur when the "[Cd.190] PLC READY signal" is turned ON so that the READY signal ([Md.140] Module status: b0) is
not turned OFF. With the home position return data other than that for the home position return direction and home position
address, set an arbitrary value (default value can be allowed) within each data setting range so that an error will not occur
upon receiving the "[Cd.190] PLC READY signal" ON.
2 HOME POSITION RETURN CONTROL
40
2.2 Machine Home Position Return
The address upon execution of the
home position return is registered
as a home position address.
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