User Manual

TMCM-3351 Hardware Manual • Hardware Version V1.00 | Document Revision V0.91 • 2017-JUL-11

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5.1 Encoder input termination

For enhanced reliability diﬀerential encoder signals should be terminated properly. The board oﬀers

termination resistors (120 Ohm) for all three encoder interface signals (a/b/n) for all three encoders. By

setting jumpers, these resistors will be placed between the diﬀerential encoder signals. Do not set these

jumpers in case encoders with single ended signals are used.

Place jumpers for

proper termination

Figure 4: Encoder input termination

5.2 Enable all driver stages permanently

The /Shutdown input pin has to be connected to the supply voltage in order to enable the driver stages for

all three stepper motor axes. A jumper between pin 19 and pin 20 can be used to permanently enable

drivers.

Figure 5: Enable all driver stages permanently

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