User Manual

PD42-1070 Hardware Manual • Hardware Version V1.00 | Document Revision V1.00 • 2017-Mar-02

14 / 25

5 Functional Description

5.1 Typical Application Wiring

Wire the PD42-1070 as shown in the following ﬁgures.

• Connect the the power supply to V+ and GND.

• Connect the Step and Direction signals to your motion controller.

• At power up time, the EN input must be low (= driver stage disabled)!

•

Optional: Connect UART to a TTL UART interface with 5V logic levels. To conﬁgure your PD42-1070

connect start the TMCL-IDE and use the parameterization tools. For detailed instructions refer to the

PD42-1070-ﬁrmware-manual.

Note

The TTL UART interface is not optically isolated. It requires 5V level signals.

Nevertheless, it provides basic ESD and rail-to-rail signal line protection for the

PD42-1070.

Figure 10: Typical application scenario with 5V inputs

5.2 Optically Isolated Inputs with Common Anode Input

The control inputs of the PD42-1070 are optically isolated (not the TTL UART interface). All optocouplers

share one common anode (COMM) input as shown in the ﬁgure above.

Terms of delivery and rights to technical change reserved.

Download newest version at www.trinamic.com

Read entire documentation.