LSIS XDL-L7NH Series, User Manual, Page: 124 / 348

5. Drive Application Functions
5-16
Electric gear
settings
Motor Revolutions =5000
Shaft Revolutions = 10000
Motor Revolutions =524288
Shaft Revolutions = 10000
If the electric gear
is used
Can move through the same command of 12000 (12 mm= 12000 * 1 um), regardless
of the encoder (motor) used.
(2) When Driving High-Resolution Encoder at High Speed but Output Frequency of Upper Level
Controller or Input Frequency of Drive is Limited
-
The output frequency of a general high-speed line drive pulse output unit is approximately 500
Kpps, while the allowed input frequency of the drive is approximately 1-4 Mpps. For this reason,
when driving a high-resolution encoder at high speed, be sure to use an electric gear for proper
driving due to the limitations of the output frequency of the upper level controller and the input
frequency of the drive. However, because there is no such limitations for a communication-type
drive (EtherCAT) like this drive, you do not have to use an electric gear.
5.3.2
Example of Electric Gear Setup

Ball Screw Load
Apparatus specification
Pitch: 10 mm, Reduction gear ratio: 1/1
User Unit 1um(0.001mm)
Encoder specification 19-bit (524288 PPR)
Amount of load
movement/revolution
10[mm] = 10000[User Unit]
Electric gear settings
Motor Revolutions : 524288
Shaft Revolutions : 10000

Turntable Load
Apparatus specification
Reduction gear ratio: 100/1
User Unit 0.001°