Mitsubishi Electric MELSEC-Q Series - Home Position Set Condition Selection

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6 POSITIONING CONTROL
6.23.18 Home position set condition selection
A home position return must be made after the servo motor has been rotated more
than one revolution to pass the axis through the Z-phase (motor reference position
signal) and the zero pass signal (M2406+20n) has been turned ON.
When "1 : Not need to pass motor Z phase after the power supply is switched on" is
selected in "Function selection C-4 (PC17), Selection of home position setting
condition" in the servo parameter (expansion setting parameter), the zero pass signal
(M2406+20n) can be turned ON even if the servo motor does not pass zero point with
the motor rotation after turning the servo amplifier power ON.
[Data Setting]
Set the following "Servo parameter" using MT Developer2 to select "Function selection
C-4 (PC17)".
Set the servo parameters for every axis.
Table 6.6 Servo parameter (expansion setting parameter)
Items Setting details Setting value Initial value
Function selection C-4
(PC17)
(Selection of home position
setting condition)
Set the home position set
condition for the absolute
position system.
0: Need to pass motor Z phase after the power
supply is switched on
1: Not need to pass motor Z phase after the
power supply is switched on
0
[Cautions]
(1) When "1 : Not need to pass motor Z phase after the power supply is switched on"
is set as the above servo parameter, a restrictions such as "make the home
position return after the servo motor is rotated more than one revolution to pass
the axis through the Z-phase (motor reference position signal) " is lost.
(2) When "1 : Not need to pass motor Z phase after the power supply is switched on"
is selected in the "function selection C-4 (PC17)" of servo parameter (expansion
setting parameter), if it does not pass zero point at the servo amplifier power ON,
the zero pass signal (M2406+20n) turns ON.
(3) When the above parameter is changed, turn the servo amplifier control circuit
power OFF to ON after resetting or turning power OFF to ON of Multiple CPU
system.