TMCM-013 Manual (V1.14 / January 17th, 2006)
9
Copyright © 2005, TRINAMIC Motion Control GmbH & Co. KG
4.1 Step, Direction and Disable Inputs
The inputs disable, dir and step are electrically isolated from the module. Their functional voltages
V
OPTON
and V
OPTOFF
are directly depending on V
COM
. To decouple the difference between V
OPTOFF
and
V
COM
has to be less than 1.0V and to interconnect the difference between V
COM
and V
OPTON
has to
exceed 3.5V.
V
OPTOFF
and V
OPTON
must not exceed V
COM
.
V
COM
- V
OPTOFF
< 1.0V
V
COM
- V
OPTON
>= 3.5V
U
COM
5..24V
Disable
Dir
Step
C
E
A
C
C
E
A
C
C
E
A
C
GND
µC
A: Anode
C: Cathode
C: Collector
E: Emitter
+5V
Figure 4.1: Step, Direction and Disable Inputs
Examples:
V
OPTOFF
V
OPTON
V
STEP
= 0V
1.5V
4.0V
5V
undefined
20V
19.0V
16.5V
V
OPTON
V
OPTOFF
undefined
V
COM
= 5V
V
COM
= 20V
V
STEP
= 0V
