Allen-Bradley MicroLogix 1200 User Manual

Publication 1762-UM001D-EN-P - March 2004
Wiring Your Controller 3-3
When using spade lugs, use a small, flat-blade screwdriver to pry the
finger-safe cover from the terminal blocks as shown below. Then
loosen the terminal screw.
Using Surge Suppressors
Because of the potentially high current surges that occur when
switching inductive load devices, such as motor starters and solenoids,
the use of some type of surge suppression to protect and extend the
operating life of the controllers output contacts is required. Switching
inductive loads without surge suppression can significantly reduce the
life expectancy of relay contacts. By adding a suppression device
directly across the coil of an inductive device, you prolong the life of
the output or relay contacts. You also reduce the effects of voltage
transients and electrical noise from radiating into adjacent systems.
The following diagram shows an output with a suppression device.
We recommend that you locate the suppression device as close as
possible to the load device.
+dc or L1
Suppression
Device
dc COM or L2
ac or dc
Outputs
Load
VAC/DC
Out 0
Out 1
Out 2
Out 3
Out 4
Out 5
Out 6
Out 7
COM

Allen-Bradley MicroLogix 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)