6.23.15 Condition selection of home position set. Mitsubishi MOTION CONTROLLERS Q172DCPU

6 POSITIONING CONTROL

6.23.15 Condition selection of home position set

A home position return must be made after the servomotor 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 the "function selection C-4, (PC17) Condition selection of home position set" of servo parameter (expansion setting parameter), if it does not pass zero point with the motor rotation after turning the servo amplifier power ON, the zero pass signal

(M2406+20n) can be turned ON.

[Data Setting]

Set the following "servo parameter" using MT Developer to select the "function selection C-4".

Set the servo parameters for every axis.

Table 6.6 Servo parameter (expansion setting parameter)

Items Setting details Setting value

Function selection C-4

(PC17)

Condition selection of home position set

Set the condition selection of home position set in 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

Initial value

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 servomotor 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" 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 power OFF to ON after resetting or turning power OFF to ON of Multiple CPU system.

CAUTION

Do not set the "1 : Not need to pass motor Z phase after the power supply is switched on" for axis which executes the home position return again after it continues traveling the same direction infinitely.

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