PD-109-57 / TMCM-109-57 Manual (V1.10 / October 17th, 2007)
11
Copyright © 2006, TRINAMIC Motion Control GmbH & Co. KG
4.1 Step, Direction and Disable Inputs
In the standard firmware of the TMCM-109 these inputs are used as general purpose inputs.
Movements are controlled by TMCL motion commands and no step direction operation is possible. To
activate the step direction feature of the TMCM-109 install the extra firmware TMCM109_StepDir.hex
(please refer to chapter 5.13). It is available on TechLibCD and
www.trinamic.com
.
The inputs disable, dir and step are electrically isolated from the module. Their functional voltages
V
OPTON
and V
OPTOFF
are directly depending on the input voltages (V
STEP
, V
DIR
and V
DISABLE
). For off-state the
input voltage has to be less than 1.5V (V
OPTOFF
) and for on-state it has to exceed 4.0V (V
OPTON
).
V
STEP
5..24V
C
E
A
C
C
E
A
C
C
E
A
C
GND
µC
A: Anode
C: Cathode
C: Collector
E: Emitter
+5V
V
DIR
5..24V
V
DISABLE
5..24V
OPTO_GND
Figure 4.1: Step, Direction and Disable Inputs
Logic level:
27V
4.0V
1.5V
V
OPTOFF
V
OPTON
undefined
V
STEP
OPTO_GND
Figure 4.2: Example for Step, Direction and Disable inputs
