User Manual

TMCM-3314, TMCM-3315 Hardware Manual (V1.00 / 2018-APR-30) 15
Copyright © 2016-2018, TRINAMIC Motion Control GmbH & Co. KG
CAUTION
Do not connect or disconnect motor during operation!
Motor cable and motor inductivity might lead to voltage spikes when the motor is disconnected / connected
while energized. These voltage spikes might exceed voltage limits of the driver MOSFETs and might
permanently damage them. Therefore, always switch off and / or disconnect power supply before connecting
/ disconnecting the motor.
5.3.2 REF / HOME connector
There is one REF / HOME connector per driver brick – one for each motor axis. HOME, REFL and / or REFR switches
may be connected via one 6 pin Molex MicroFit™ connector (Molex part no. 43045-0612). Mating connector housing
e.g. Molex 43025-0600, contacts Molex 43030-0007. Please note that there are alternative options available from
Molex for both, mating housing and contacts.
1
3
4
6
Pin
Label
Direction
Description
1
GND
Power
Supply and signal ground
2
REFL
Input
REF left / Left stop switch input. Internal pull-up (5k6) to
+5V. External switch to ground may be connected or up-
to +5V push-pull signal.
3
HOME
Input
Home switch input. Internal pull-up (5k6) to +5V. External
switch to ground may be connected or up-to +5V push-
pull signal.
4
+5V_OUT
Power output
Connected to the on-board +5V auxiliary DC/DC converter.
All +5V_OUT power supply outputs together on the 3 REF
/ HOME, 3 Encoder connectors and the Output connector
may draw up-to 1A (e.g. 100mA per encoder and up-to
20mA per REF / HOME switch).
5
REFR
Input
REF right / Right stop switch input. Internal pull-up (5k6)
to +5V. External switch to ground may be connected or
up-to +5V push-pull signal.
6
GND
Power
Supply and signal ground
Table 5.11: Driver Brick: REF / HOME connector
5.3.3 Encoder connector
There is one Encoder connector per driver brick – one for each motor axis. Incremental A/B/N encoders with
differential encoder signals are supported. The TMCM-3314 / TMCM-3315 offer on-board differential line receivers
(AM26LV32 or equivalent) with 120R termination resistor per differential signal pair. Differential encoder signals
may be connected via one 8 pin Molex MicroFit™ connector (Molex part no. 43045-0812). Mating connector housing
e.g. Molex 43025-0800, contacts Molex 43030-0007. Please note that there are alternative options available from
Molex for both, mating housing and contacts.