
B-65150E/04 2. SETTING α SERIES SERVO PARAMETERS
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2.1.4 Setting Servo Parameters When a Separate Detector for the
Serial Interface Is Used
(1) Overview
When a separate detector of the serial output type is used, there is a
possibility that the detection unit becomes finer than the detection unit
currently used. Accordingly, a few modifications are made to the
setting method and values of servo parameters.
When using a separate detector of the serial output type, follow the
method explained below to set parameters.
(2) Series and editions of applicable servo software
Series 9080/M (13) and subsequent editions (Series 15-B, 16-C, and
18-C)
Series 90A0/H (08) and subsequent editions (Series 15i, 16i, 21i,
Power Mate i)
(3) Separate detectors of the serial output type
(1) The serial output type linear scales currently available are listed
below:
Minimum
resolution
Backup
Mitsutoyo Co., Ltd. 0.5 µm Not required
Heidenhein Co., Ltd. 0.1 µm Not required
Sony Precision Technology Inc. 0.1 µm Incremental
(2) The serial output type rotary encoders currently available are
listed below:
Minimum
resolution
(Note 1)
Backup
FANUC 2
20
pulse/rev Required
Heidenhein Co., Ltd.
2
20
pulse/rev Not required
(Note 2)
NOTE
1 The minimum resolution of a rotary encoder is the
resolution of the encoder itself.
FANUC’s rotary encoder, however, is treated as
having a resolution of 1,000,000 pulses per revolution
because of the servo software configuration.
2 Only data within one revolution is backed up; data for
more than one revolution is not backed up.