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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 a peripheral devices 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 Initial 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
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.