Motor Power Company DUET_FL 48/10, Руководство пользователя

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For complex servo control systems, two servo positioning controllers can be synchronized by coupling
them in a master-slave configuration using incremental encoder signals. At present, the DUET_FL
servo positioning controller can only assume the role of the master. The master transmits the position
information in the form of incremental encoder track signals through the outputs DOUT1 (track signal
A) and DOUT2 (track signal B) to the slave which receives the information through the corresponding
incremental encoder input. The illustration below shows the configuration:
Master
M1
Slave
M2
X1 out input
Figure 25: Coupled incremental encoder emulation
The master operates in one of the operating modes described earlier (speed control, positioning) while
the slave is in synchronized mode.
Among others, the following applications are possible with this configuration:
 Speed-synchronous movement

Position-synchronous movement
 Flying saw
Classical servo applications, such as speed control in the servo controller or position control in the
control system, also required a feedback of the actual position from the servo controller to the control
system. This is also handled using the incremental encoder emulation of the servo positioning
controller.
In both cases, the DUET_FL controller as the master emulates the track signals of the incremental
encoder defined by the parameters in the menu
Operating mode/Incremental encoder emulation .
In addition, you can deactivate the incremental encoder emulation in order to be able to use the digital
inputs DIN2 and DIN3 or the digital outputs DOUT1 and DOUT2 for other functions.
You can make the following configurations in the Incremental encoder field:
 Number of increments : You can select 32, 64, 128, 256, 512 or 1024 as the number of
increments for the emulation.
User Manual DUET_FL „DUET_FL 48/10“ Version 1.1 Motor Power Company