TMCM-1181 V3.0 Hardware Manual (Rev. 0.90 / 2015-JUL-10)
10
3.3.4 In/Out Connector
An 8pin JST EH series 2.5mm pitch connector is used as In/Out Connector.
Pin
1
Label
GND
Direction
Description
Power (GND) Module ground (system and signal ground)
Power supply output connected to VCC (pin 2) of
power supply connector via 0.2A polyfuse. This way
up-to 200mA (polyfuse protected) may be used from
this pin for supply of external circuits (e.g. limit /
home switches, load connected to OUT0/1 etc.)
General purpose output, open collector
General purpose output, open collector
Analog input 0, 0… 10V (analog to digital converter
range)
Power
VCC_OUT supply
2
output
3
4
OUT0
OUT1
Output
Output
5
IN0
Input
Digital input, +24V compatible, programmable
internal pull-up.*
Functionality can be selected in software:
a) Left stop switch input (connected to REF1
input of TMC429 motion controller)
STOP_L/
STEP/
IN1
6
Input
b) Step signal (connected to step input of TMC262
stepper driver)
c) General purpose input
processor)
1
8
1
(connected to
Digital input +24V compatible, programmable
internal pull-up.*
Functionality can be selected in software:
a) Right stop switch input (connected to REF3
input of TMC429 motion controller)
b) Direction signal (connected to direction input
of TMC262 stepper driver)
STOP_R/
DIR/
IN2
7
8
Input
c) General purpose input
processor)
2
(connected to
Digital input +24V compatible, programmable
internal pull-up.*
Functionality can be chosen in software:
a) Home switch input (connected to processor)
b) Enable signal (connected to processor)
HOME/
ENABLE/ Input
IN3
c) General purpose input
3
(connected to
processor)
Table 3.4 In/Out connector
* It is possible to enable / disables pull-ups (1k to +5V) in software for all three digital inputs. Pull-ups
are always enabled / disabled for all three together / at the same time.
VDD
OUT0,
OUT1
microcontroller
GND
Figure 3.4 Internal circuit of OUT0 and OUT1
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