Applied Motion SV7-C-CE - Manual (Page 30)

30
SV7 Hardware Manual 920-0012F
12/18/2014
Other Digital Inputs
As we mentioned in the previous section, the high
speed STEP and DIR inputs are configured for five
volt logic. All other digital inputs are designed for
operation between 12 and 24 volts DC.
Single Ended Inputs
The SV drives include four single ended, optically
isolated input circuits that can be used with sourc-
ing or sinking signals, 12 to 24 volts. This allows
connection to PLCs, sensors, relays and mechanical
switches. Because the input circuits are isolated,
they require a source of power. If you are con-
necting to a PLC, you should be able to get power
from the PLC power supply. If you are using relays
or mechanical switches, you will need a 12-24 V
power supply. This also applies if you are connecting the inputs to the programmable outputs of
an Si product from Applied Motion.
What is COM?
“Common” is an electronics term for an electrical connection to a common voltage. Sometimes
“common” means the same thing as “ground”, but not always. In the case of the SV drives, if you are
using sourcing (PNP) input signals, then you will want to connect COM to ground (power supply -).
If you are using sinking (NPN) signals, then COM must connect to power supply +.
Note: If current is flowing into or out of an input, the logic state of that input is low or
closed. If no current is flowing, or the input is not connected, the logic state is high or open.
The diagrams on the following pages show how to connect the inputs to various commonly used
devices.
2200
2200
2200
2200
2200
inside drive
XCOM
X3/EN
X4/RST
X5
X6
X8/CCWLIM-
8
7
6
5
4
25
X8/CCWLIM+
24
2200
X7/CWLIM-
23
X7/CWLIM+
22
DB-25 Connector