Nidec Control Techniques Digitax-SF DA21223, Instruction Manual

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44
Digitax SF
Instruction Manual
6. Operation
5. Position Control Mode
sensor
Position
Origin
Speed
Home
Home reference position
Homing Based on Home Sensor (no
sensor
re-detection)（No.645.0=2, No.645.3=0）
This operation indicates the type of homing based on the home position sensor.
no detection of the
sensor
-front-end after the first detection
You can use this type of homing to set the point of machine passing the
sensor
as the home base.
There are three options for what to be set as “home” (after detection of passing the
sensor
): 1)
sensor
position, 2) encoder z-phase, 3) any position shifted from
sensor
or z-phase.
Set the following parameters related to this homing method.
*) Parameters to define the homing patterns
Refer to the patterns from 13 to 18 below to set the parameters.
Group Name Parameter No.
Homing
Overall
Home reference signal selection
（arbitrary position, stopper,
sensor
）
645.0
(*)
Movement direction 646.0
Acceleration/Deceleration time
（Common in Rough approach speed and Careful approach speed）
650.0
Home position data 653.0
Rough
approach
Sensor polarity 646.1
Rough approach speed 648.0
Careful
approach
Careful approach switch 647.1
(*)
Encoder Z-phase Selection 645.1
(*)
657.0
(*)
645.3
(*)
649.0
Z-phase disabled distance
Re-detection of home position
sensor
Careful approach speed
Amount of position shift to home
（travel distance from base signal or z-phase to home）
651.0
(*)
Common
Internal Position: Motion of Point No.0 646.3
Homing: Torque command limit 647.0
Homing: Timeout Switch 646.2
Homi
n
g: Timeout Time
659.0
Pattern 13
Parameters Settings
Home reference signal selection
No.645.0
2
Re-detection of Home position
sensor
No.645.3
0
Encoder Z-phase selection
No.645.1
0
Careful Approach switch
No.647.1
0
Shift-to-home amount
No.651.0
0
Z-phase disabled distance
No.657.0
0