User manual

TMCM-1110 stepRocker Hardware Manual (Ref. 1.08 / 2012-APR-04) 8
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3.2.6 USB Connector
A USB interface is available via a mini-USB connector. This module supports USB 2.0 Full-Speed (12Mbit/s)
connections.
Pin
Label
Direction
Description
1
VBUS
Power
(+5V input)
+5V supply from host
2
D-
bi-directional
USB Data -
3
D+
bi-directional
USB Data +
4
ID
Connected to signal and system ground
5
GND
Power (GND)
Signal and system ground
Table 3.9: USB connector
3.2.7 Step/Dir Input Connector (Motor 0)
The TMCM-1110 stepRocker is equipped with a step/dir input connector for motor 0. Via this connector an
external motion controller can be used together with the on-board driver electronics. For selecting an external
motion controller instead of the on-board TMC429 motion controller two jumpers have to be set (please refer
to chapter 3.3).
Pin
Label
Direction
Description
1
GND
Power (GND)
Signal and System ground
2
Step In
in
Driver step input signal (+5V compatible)
3
Dir In
in
Driver direction input signal (+5V compatible)
Table 3.1: Step/dir input connector
3.2.8 Step/Dir Output Connectors (Motor 1 and Motor 2)
The TMC429 motion controller on the stepRocker is able to control up to three stepper motors. Its Step/Dir
outputs (TTL level) for motor 1 and motor 2 are leaded through to connectors Step/Dir Out 1 and Step/Dir Out 2.
The TMCM-1110 stepRocker can be extended to a complete motion controller/driver system for all three motors.
ATTENTION
Labels of the Step/Dir output connectors on the PCB are interchanged:
- Step/Dir Out 1 is used for axis 2.
- Step/Dir Out 2 is used for axis 1.
Controller OUT 2 Controller OUT 1
Pin
Label
Direction
Description
1
GND
Power (GND)
Signal and System ground
2
Step Out
out
Driver step output signal (+5V compatible)
3
Dir Out
out
Driver direction output signal (+5V compatible)
Table 3.2: Step/Dir Out connectors
NOTE
For setting the step pulse length global parameter 86 is used (available with firmware version 1.03 and
higher). Adjust this parameter with the SGP command. Refer to the TMCL Firmware Manual of the stepRocker
for further information.