YASKAWA JEPMC-MP2300-Y Series User Manual

9
Absolute Position Detection
9.2.2
Initializing the Absolute Encoder
9-6
9.2.2 Initializing the Absolute Encoder
Absolute encoders can be initialized as follows:
• SERVOPACK Procedure
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Refer to the manual for the SERVOPACK for details.
• Panel Operator or Digital Operator Procedure

Refer to the manual for the SERVOPACK for details.
• ABS_RST Command Procedure

Refer to 7.2.21 Reset Absolute Encoder (ABS_RST) on page 7-77 for details.
For details on the procedure for initializing SERVOPACKS, refer to Appendix C Initializing the
Absolute Encoder on page C-2.

Initialize the absolute encoder in the following situations.
・
When the absolute position detection system is started up for the first time
・
When number of rotations from the absolute reference position needs to be initialized to 0
・
When a Servomotor has been left alone with no battery connected to the absolute encoder
・
When an alarm which is related the absolute position detection system occurs
9.3 Absolute Position Detection for Finite Length Axes
This section describes the procedure for setting parameters and precautions on setting zero-point and
turning ON the power supply when using the axis as a finite length axis.
9.3.1 Parameter Settings for Finite Length Axes
The following parameters must be set to enable the absolute position detection function when using
an axis as a finite length axis.
( 1 ) MP2300 Fixed Parameters for Absolute Position Detection
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The parameters for which precautions are provided must be set referring to
9.3.1 ( 3 ) Detailed Descriptions on page 9-8. Set these parameters carefully. If
they are not set correctly, the current position may not be correct after the power
is turned ON. Machine damage may occur.
Parameter No. Name Setting/Range Units Reference
Fixed Parameter 1, bit 0 Axis Type
0: Finite length axis, 1: Infinite length axis − 9.3.1 ( 3 ) [ a ]
Fixed Parameter 30
Encoder Type
• Incremental encoder
• Absolute encoder
• Absolute encoder
(used as incremental encoder)
− 9.3.1 ( 3 ) [ b ]
Fixed Parameter 36
Encoder Resolution
in Pulses/Revolution
1
to
2
31
−1
Set the value after multiplication. (For a
16-bit encoder, set 2
16
= 65536.)
pulse 9.3.1 ( 3 ) [ c ]
Fixed Parameter 38
Max. Revolution of
Absolute Encoder
0
to
2
31
−1
1 = 1 rotation 9.3.1 ( 3 ) [ d ]
CAUTION

YASKAWA JEPMC-MP2300-Y Series Specifications

General

Brand	YASKAWA
Model	JEPMC-MP2300-Y Series
Category	Controller
Language	English