TMCM-078 Manual (V1.03 / September 10th, 2008)
19
Copyright © 2008, TRINAMIC Motion Control GmbH & Co. KG
5.3
Step / Direction
The Step-Direction controls are as follows:
Motor
Velocity
Acceleration
Rotate right
Rotate left
Control
Step frequency
Increase of
Step frequency
Differential voltage
3.5 V for screw and
0.4 V for JST connector
Differential voltage
2.0 V for screw and
-0.4 V for JST connector
Table 5.2: External signals and motor reactions
Disable
+5V
-5V
rotating on off
Direction
+5V
rotating direction
-5V
Step
+5V
-5V
Velocity Deceleration Acceleration
const.
Motor
Speed
rotate right
rotate left
0
GND
GND
GND
Figure 5.2: Differential Step-Direction signals and motor reactions (schematically)
For input circuit information please refer to Figure 3.2 and Figure 3.3.
5.3.1
Direction
Description:
The Direction signal changes the motors rotation from clockwise (CW) to
counterclockwise (CCW) and vice versa.
Function Table:
Direction
Differential signal
Screw connector
JST connector
CW
3.5 V
0.4 V
CCW
2.0 V
-0.4 V