![background image](http://html2.mh-extra.com/html/national-instruments/ni-smd-7613/ni-smd-7613_user-manual_3411129018.webp)
1
8
|
ni.com
|
NI SMD-7613/7614/7615/7616 User Manual
Figure 17.
Connecting for Encoder Following
Using 12 to 24 Volt Signals
Most controllers do not use 5 V signals. Use external dropping resistors to connect signals up to
24 V to the STEP and DIR inputs. For 12 V logic, use 820 Ω, 1/4 W resistors. For 24 V logic,
use 2,200 Ω, 1/4 W resistors.
Caution
Do not exceed an input voltage of 24 VDC. Never apply AC power to an
input terminal.
Connect the resistors according to the following diagrams:
Figure 18.
Connecting to the controller with Sourcing (PNP) Outputs
Indexer
with
Differenti
a
l
O
u
tp
u
t
s
B-
B+
A–
A+
GND
IN/OUT 1
X2/DIR+
X2/DIR–
GND
X1/
S
TEP+
X1/
S
TEP–
PLC
with
S
o
u
rcing
O
u
tp
u
t
s
+12-24V
GND
761x
X1/
S
TEP–
X1/
S
TEP+
X2/DIR–
X2/DIR+
OUT2
OUT1