Applied Motion ST10-C-CE - Manual (Page 29)

29
ST5/10-Si,-Q,-C, IP Hardware manual 920-0004 Rev. F
6/10/14
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 ST drives include four single ended, opti-
cally isolated input circuits that can be used with
sourcing 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 connecting 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 ST drives, if you
are using sourcing (PNP) input signals, then you will want to connect COM to ground (power sup-
ply -). 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