Do Output With Fixed Distance; Description; System Configuration - Delta ASDA Series Application Notes

Chapter 4 Application Techniques

4.1 DO Output with Fixed Distance

4.1.1 Description

With the built-in COMPARE function of ASDA-A2, users can enable DO signal output after the
motor operates for a distance. More than one DO output can be flexibly programed and its output
length can also be modified. For applying this application, the related background knowledge
about internal control (PR) and COMPARE function of ASDA-A2 servo drive is required. The
built-in function can satisfy the demand without modifying the hardware, which not only reduces
the cost of mechanism but improves the flexibility. Four digital outputs (DO1 / DO2 / DO3 / DO5)
are the maximum when there is no other extension DO. Please note that, DO4 is only for
COMPARE function and cannot be applied in this application.

4.1.2 System Configuration

Here are the examples of two digital outputs. The output time of one example is overlapped and
the other is not.
Figure 4.1.1 shows the time when two DOs are overlapped.
Figure 4.1.2 shows the time when two DOs are not overlapped.
4-2
DO1 ON DO1 OFF
DO2 ON DO2 OFF
Figure 4.1.1 The Output Time of Two DOs is Overlapped
DO1 OFF
Figure 4.1.2 The Output Time of Two DOs is not Overlapped
DO2 ON DO2 OFF
ASDA Series Application Note
March, 2015