Improved Functions; Moment Of Inertia Ratio Setting Range; Adaptation To Single-Turn Data Absolute Encoder - YASKAWA SGM H Series User Manual

10 Upgraded Versions

10.4.1 Moment of Inertia Ratio Setting Range

10.4 Improved Functions

10.4.1 Moment of Inertia Ratio Setting Range
A load with moment of inertia ratio (Pn103) more than the existing maximum value 10,000% may be connected
to a direct-drive motor. Accordingly, the upper limit of Pn103 is increased to 20,000%.
Pn103
Moment of Inertia Ratio
* Used when the software version number is later than 32.

10.4.2 Adaptation to Single-turn Data Absolute Encoder

A single-turn data absolute encoder is mounted to SGMCS direct-drive servomotor as standard.
The machine configuration with a SGMCS servomotor does not require harmonic gear, etc. so that the servomo-
tor can be connected directly to a load. Therefore, for its absolute value detecting system, the load-end absolute
value can be obtained by measuring only the angle of motor shaft.
In this case, the encoder multi-turn data is not required and no backup battery is required.
(With a single-turn data absolute encoder, the multi-turn data is always set to "0.")
• Single-turn data absolute encoder model: UTSB -B
Confirm the single-turn absolute encoder model in Motor Models Display (Fn011) on the digital operator or
panel operator:
• Encoder Model/Encoder Resolution Display
Fn011-E.
Encoder Model
Code
00 Incremental encoder
01 Multiturn data absolute encoder
02
Single-turn data absolute encoder
10-16
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Setting Range Setting Unit
0 to 10000
(0 to 20000) *
Encoder Resolution
Model
Factory Setting
1 %
Code Specification
13 13 bits
16 16 bits
17
17 bits
20
20 bits
Position
Speed
Setting Validation
0 Immediately
Torque