User Manual

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

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4 Connectors

The TMCM-3351 oﬀers connectors for three stepper motors, related reference switches, related encoders

(optional for closed-loop operation), a number of analog and digital inputs and outputs and several serial

interfaces (RS485, CAN, USB and RS232).

NOTICE

Start with power supply OFF and do not connect or disconnect motor dur-

ing operation!

Motor cable and motor inductivity might lead to voltage spikes

when the motor is (dis)connected while energized. These voltage spikes might

exceed voltage limits of the driver MOSFETs and might permanently damage

them. Therefore, always switch oﬀ / disconnect power supply or at least disable

driver stage before connecting / disconnecting motor.

Power

3x Motor

GPIO SPI3x Encoder

RS232

CAN

USB

RS485

3x Reference

2x Analog

Input

1 1 1

Figure 2: TMCM-3351 connectors

Connector Connector type on-board Mating connector type

Power RIA 320-02, 2 pins, 5mm pitch

RIA 349-02, screw type terminal block, plug-

gable , 2 pins, 5mm pitch

Motor RIA 183-12, 12 pins, 3.5mm pitch

1x RIA 169-12 (12 pins) or e.g. 3x RIA 169-

04 (4 pins, one connector for each mo-

tor), screw type terminal block, pluggable,

3.5mm pitch

MOLEX type 6410, 2.54mm HH header, ver-

tical friction lock

MOLEX type 2045, 2.54mm crimp housing,

receptable, 4 pins

Reference RIA 183-12, 12 pins, 3.5mm pitch

1x RIA 169-12 (12 pins) or e.g. 3x RIA 169-

04 (4 pins, one connector for each mo-

tor), screw type terminal block, pluggable,

3.5mm pitch

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