CHAPTER 4 PARAMETER
(7) Homing pattern using the encoder Z-phase as a referenece signal for homing
When it is a machine which cannot install sensors, such as LS, PA2_12: Reference signal for
homing set as "Encoder Z-Phase".
[Parameter setting example]
PA1_
No.
Name
Setting
Default
value
Change
01 Control mode selection
0: Position
0
Power
PA2_
No.
Name
07 Creep speed for homing
Setting
Default
value
Change
4
50.00 [r/min]
50.00
Always
08 Starting direction for homing
0: Forward rotation
0
Power
11 Reference signal for shift operation 1: Encoder Z-Phase
1
Power
12 Reference signal for homing
3: Encoder Z-Phase
0
Power
14 Home position shift unit amount
1000 [units]
1000
Always
Timing chart
(1) When ORG signal is ON, the motor rotates with Creep speed for homing according to
Starting direction for homing.
(2) If first encoder Z-Phase is detected, it moves by PA2_14: Homeing position shift unit
amount.
Speed
Servo-on [S-ON] OFF
Homing [ORG]
Encoder Z-Phase
Homing completion
In-position [INP]
OFF ON
ON
(1)
ON
OFF
Creep speed for homing [PA2_07]
Home position shift unit amount
(2)
Time
[PA2_14]
Controller, Sensor
to
Servo Amplifier
OFF
OFF
OFF
ON OFF
ON
Servo Amplifier
to
ON Controller
If PA2_12 is 3: Encoder Z-Phase, Reference signal for shift operation is always Encoder
Z-Phaze even if PA2_11 is set as which value.
When ±OT is detected at the start of homing, the motor does not rotate eve if PA2_24 is set as
which value. And ±OT is detected during the homing operation, the motor is stopped.
Automatic Operation Setting Parameter 4-69