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1747-l20a
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Product Description
The Allen-Bradley 1747-L20A Fixed Controller is part of the SLC 500 product family. It comes with 20 I/O points, including 12 inputs with 120 Volts AC, and 8 AC/DC relay outputs with a line power of 120 to 240 Volts AC.
Other Available Revisions for the 1747-l20a 1747-l20a//A1747-l20a//B1747-l20a//C
Common misspellings:
- l747-l20a
- 17A7-l20a
- 1747-120a
- 1747-l2oa
- 1747l20a
Technical Specifications for 1747-l20a
| Brand | Allen-Bradley / Rockwell Automation |
|---|---|
| Series | SLC-500 |
| Part Number | 1747-L20A |
| Product Type | Fixed Controller |
| Line Power | 120 to 240V AC |
| Bulletin | 1747 |
| Product Line | SLC 500 |
| I/O Points | 20 |
| Inputs | 12 |
| Outputs | 8 |
| Output Type | AC/DC relay |
| Input Rating | 120 V AC |
| Memory Capacity | 1K words |
| Software | SLC 500 A.I. Series Programming Software |
| LED Indicators | POWER, CPU FAULT, PC RUN, BATTERY LOW and FORCED I/O |
About 1747-l20a
The Allen-Bradley 1747-L20A Controller is a fixed controller manufactured as part of the SLC 500 product line. It comes with 20 I/O points including 12 inputs rated at 120 Volts AC and 8 AC/DC relay output points with line power ratings of 120 to 240 Volts AC. This unit has a 1K-instruction memory capacity and a capacitor with a 2-week battery lifespan and a lithium battery-backed RAM with a 5-year battery lifespan. It has UVPROM or EEPROM backup options. The Allen-Bradley 1747-L20A Fixed Controller comes with a program scan time of 8 milliseconds for every 1K instructions as well as 20 to 700 milliseconds of load-dependent hold-up time between scans. This controller does not have a high-speed counter.
The 1747-L20A Fixed Controller module provides 1.25 Amps of fuse protection at a voltage range of 120 to 240 Volts AC. It comes with 5 status indicator lights which are the “POWER,” “CPU FAULT,” “PC RUN,” “BATTERY LOW,” and “FORCED I/O” LEDs. These indicators’ circuits support the use of a wire size of 24 AWG. The Allen-Bradley 1747-L20A controller can be panel-mounted, and it also supports the 2-slot expansion racks for the expansion of the inputs and outputs. This unit operates at a temperature range of 0 to 60 degrees Celsius at 5 to 95 percent relative humidity without condensation. It also has an operational shock tolerance of 30 G and a vibration tolerance of 2.5 G at 10 to 500 Hertz. The approximate dimensions of the 1747-L20A controller are 3.6 x 5.5 x 5.7 inches and it has a weight of about 0.4 pounds.
The Allen-Bradley 1747-L20A Fixed Controller is part of the SLC 500 product family. It comes with 20 I/O points, including 12 inputs with 120 Volts AC, and 8 AC/DC relay outputs with a line power of 120 to 240 Volts AC.
F.A.Q for 1747-l20a
