Applied Motion Si2035 - Manual (Page 9)

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Si2035 Hardware Manual Si2035 Hardware Manual Si2035 Hardware Manual Si2035 Hardware Manual Si2035 Hardware Manual
Connecting Input Signals Connecting Input Signals Connecting Input Signals Connecting Input Signals Connecting Input Signals
IN/OUT Connector Pinout Diagram
Single Ended Inputs
The Si2035 includes 6 single ended, optically 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 another Si product from Applied Motion.
What is COM?
"Common" is an electronics term for an electrical connection to a common voltage. Some-
times "common" means the same thing as "ground", but not always. In the case of the
Si2035, 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 following diagrams show how to connect the inputs to various commonly used devices.
The maximum voltage that can be applied to an input terminal is 24 volts DC. Never apply
AC voltage to an input terminal. Maximum current is 20 mA per input.
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2200
2200
2200
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inside BLU-Si
COM
COM
IN1
IN2
IN3
IN4
CWJOG/IN5
CCWJOG/IN6
COM
1
2
3
4
5
6
7
8
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