User Manual

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

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4.1 Power Connector

A 2 pin, detachable screw connector is used for power supply input. All additional voltages required by the

TMCM-3351 are generated on-board from this supply input.

Pin Label Description

1 GND Common system supply and signal ground

2 VDD Power supply input, nom. +24V DC (+10V. . . +28.5VDC)

Table 3: Power Supply Connector pin assignment

4.2 Motor Connector

For the three motors 0. . . 2 there are two connector options: either one detachable screw connector (can

be used with either 12pin or 3x4pin mating connectors) intended for prototyping and smaller series or

three crimp style connectors (Molex KK series) for higher volume / series.

NOTICE

Do not connect or disconnect motor during operation!

Motor cable and mo-

tor 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.

Pin Label Description

1 Motor_0_B- Motor 0, coil B

2 Motor_0_B+ Motor 0, coil B

3 Motor_0_A- Motor 0, coil A

4 Motor_0_A+ Motor 0, coil A

5 Motor_1_B- Motor 1, coil B

6 Motor_1_B+ Motor 1, coil B

7 Motor_1_A- Motor 1, coil A

8 Motor_1_A+ Motor 1, coil A

9 Motor_2_B- Motor 2, coil B

10 Motor_2_B+ Motor 2, coil B

11 Motor_2_A- Motor 2, coil A

12 Motor_2_A+ Motor 2, coil A

Table 4: Motor connector (detachable screw connector)

Pin Label Description

1 Motor_0/1/2_B- Motor 0/1/2 coil B

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