Hardware Overview - Allen-Bradley MicroLogix 1000 User Manual

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Hardware Overview

The MicroLogix 1000 programmable controller is a packaged controller containing
a power supply, input circuits, output circuits, and a processor. The controller is
available in 10 I/O, 16 I/O and 32 I/O configurations, as well as an analog version
with 20 discrete I/O and 5 analog I/O.
The catalog number for the controller is composed of the following:
Unit I/O Count: 20
The hardware features of the controller are:
1
2
3
4
5
6
7
8
9
10
3
1761-L20AWA-5A
Bulletin Number
Base Unit
Input Signal:
A = 120V ac
B = 24V dc
IN
POWER
RUN
FAULT
FORCE
OUT
Analog I/O
Analog Circuits:
Inputs = 4
Outputs = 1
Power Supply:
A = 120/240V ac
B = 24V dc
Output Type:
W = Relay
B = MOSFET
A = Triac
1
Input terminals
2
dc output terminals (or not used)
3
Mounting hole
Input LEDs
4
5 Status LEDs
6 RS-232 communication channel
7
Output LEDs
8
Power supply line power
9
Ground screw
Output terminals
10
Installing Your Controller
20142
1–3