TMCM-3351 Hardware Manual • Hardware Version V1.00 | Document Revision V1.00 • 2017-SEP-01
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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 ex-
ceed 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
SPI
3x Encoder
RS232
CAN
USB
RS485
3x Reference
2x Analog
Input
1
1
1
1
1
1
1
1
1
1
1
1
1
5
9
6
1
5
9
6
1
2
9
10
1
2
9
10
1
2
9
10
1
2
9
10
1
2
19
20
Figure 2: TMCM-3351 Connectors
Connector Types and Mating Connectors of the TMCM-3351
Connector
Connector type on-board
Mating connector type
Power
RIA 320-02, 2 pins, 5mm pitch
RIA 349-02, screw type terminal block,
pluggable , 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
motor), screw type terminal block, plug-
gable, 3.5mm pitch
MOLEX type 6410, 2.54mm HH header,
vertical friction lock
MOLEX type 2045, 2.54mm crimp hous-
ing, receptable, 4 pins
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