Fuji Electric ALPHA7, User Manual

Page: 249 / 662

CHAPTER 4 PARAMETER
4-58
Automatic Operation Setting Parameters
4
(4) If home position LS (PA2_12) is detected in the homing direction (PA2_10), the motor will
begin traveling in the homing direction (PA2_10) at homing creep speed (PA2_07), and will
stop after moving by the home position shift amount (PA2_14) from the point of initial encoder
Z-phase (PA2_11) detection. Homing completion is turned ON with the stopping point as the
home position, and the homing process is completed.

At the rotation direction selection point with zero speed, zero speed and in-position [INP] are
momentarily turned on. The signal change may fail to be sensed according to some scanning
periods of the host controller.
Speed
Time
OFF ON OFF
OFF ON OFF
ON OFF
OFF ON
OFF ON
OFF
OFF ON
OFF ON ON
OFF ON ON
OFF
OFF ON
+
－
ON OFF ON
ON
ON OFF ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
(1)
(2)
(3)
(4)
OFF ON OFF
OFF ON OFF
(1) (2) (3)
③
(4)
Homing creep speed [PA2_07]
Encoder Z-phase
Home position shift unit amount
Homing speed [PA2_06]
Home position shift unit
amount
[PA2_14]
+OT
-OT
Starting
direction for
homing
Home
position LS
Home
position
Homing direction
after reference
signal detection
Reverse
rotation
Controller,
sensor
↓
Servo
amplifier
Servo-on [S-ON]
Position control
Homing [ORG]
+OT
Home position LS [LS]
Encoder Z-phase
Ready for servo-on
OT detection
+OT detection
Homing LS detection
Homing completion
Zero speed
In-position
[INP]
Servo
amplifier
↓
Controller