QKM QD1, User Manual, Page: 25 / 64

Chapter 2
Work Principle
Document Version V3.1.0 (2020-08-18) 15
cascaded daughterboards. Each channel has a rated output current of 200 mA, and the
output circuit diagram is shown in Figure 2-9.
Figure 2-9 Output circuit diagram of economical QD1
2.5 Description of LEDs
2.5.1 Modular QD1
Figure 2-10 Modular QD1 LEDs
Optocoupler-isolated DO
User port
Controller
DO
Work LED
(Green)
Communication LED
(Green and yellow)