User Manual · Publication 1761-UM003 · Rockwell Automation
MicroLogix 1000 Programmable Controllers – User Manual (1761-UM003)
Installation, wiring, programming and hardware specifications for the Allen-Bradley MicroLogix 1000 programmable controllers (Bulletin 1761): fifteen fixed-I/O controllers with 10, 16, 20 or 32 points, AC or DC power, relay, MOSFET or triac outputs, and analog I/O on the -5A models.
Download PDFDocument Preview
Open the full PDF in a new tab · Publication 1761-UM003
Specifications
Controller types
| 1761-L10BWA | 6 DC inputs, 4 relay outputs, AC power supply |
|---|---|
| 1761-L10BWB | 6 DC inputs, 4 relay outputs, DC power supply |
| 1761-L16AWA | 10 AC inputs, 6 relay outputs, AC power supply |
| 1761-L16BWA | 10 DC inputs, 6 relay outputs, AC power supply |
| 1761-L16BWB | 10 DC inputs, 6 relay outputs, DC power supply |
| 1761-L16BBB | 10 DC inputs, 4 FET + 2 relay outputs, DC power supply |
| 1761-L20AWA-5A | 12 AC inputs, 4 analog inputs, 8 relay outputs, 1 analog output, AC power supply |
| 1761-L20BWA-5A | 12 DC inputs, 4 analog inputs, 8 relay outputs, 1 analog output, AC power supply |
| 1761-L20BWB-5A | 12 DC inputs, 4 analog inputs, 8 relay outputs, 1 analog output, DC power supply |
| 1761-L32AWA | 20 AC inputs, 12 relay outputs, AC power supply |
| 1761-L32BWA | 20 DC inputs, 12 relay outputs, AC power supply |
| 1761-L32BWB | 20 DC inputs, 12 relay outputs, DC power supply |
| 1761-L32BBB | 20 DC inputs, 10 FET + 2 relay outputs, DC power supply |
| 1761-L32AAA | 20 AC inputs, 10 triac + 2 relay outputs, AC power supply |
General
| Memory | 1 K EEPROM (approximately 737 instruction words, 437 data words) |
|---|---|
| Power supply voltage | 85-264 V AC, 47-63 Hz (AC models); 20.4-26.4 V DC (DC models) |
| 24 V DC sensor power | 200 mA (AC-powered models with DC inputs) |
| Operating temperature | 0 to +55 °C horizontal; vertical 0 to +45 °C discrete, 0 to +40 °C analog |
| Storage temperature | -40 to +85 °C |
| Operating humidity | 5 to 95% noncondensing |
| Isolation | 1500 V AC |
| Terminal screw torque | 0.9 N·m (8.0 in·lb) maximum |
| Certifications | C-UL and UL Class I, Division 2 Groups A, B, C, D; CE/RCM/EAC (when marked) |
Inputs
| AC input voltage range | 79-132 V AC, 47-63 Hz |
|---|---|
| DC input voltage range | 14-30 V DC (24 V DC nominal; 26.4 V max at 55 °C, 30 V max at 30 °C) |
| Off voltage | 20 V AC / 5 V DC |
| On current, nominal | 12.0 mA at 120 V AC 60 Hz / 8.0 mA at 24 V DC |
Outputs
| Relay | 8.0 A per common, 1440 VA per controller; 10 ms max on/off response; 20,000,000 mechanical cycles |
|---|---|
| Relay contacts, 240 V AC | 7.5 A make / 0.75 A break, 2.5 A continuous |
| Relay contacts, 120 V AC | 15 A make / 1.5 A break, 2.5 A continuous |
| Relay contacts, 24 V DC | 1.2 A make/break, 2.0 A continuous |
| MOSFET | 1.0 A per point at 55 °C, 1.5 A at 30 °C; 3 A per controller (L16BBB), 6 A (L32BBB); 0.1 ms on, 1 ms off |
| Triac | 0.5 A per point at 55 °C, 1.0 A at 30 °C; 1440 VA per controller |
Analog I/O (-5A models)
| Analog input range | -10.5 to +10.5 V DC or -21 to +21 mA, 16-bit |
|---|---|
| Analog input accuracy | ±0.7% of full scale, 0 to 55 °C |
| Analog output range | 0-10 V DC or 4-20 mA, 15-bit |
| Analog output load | 1 kΩ minimum (voltage), 0-500 Ω (current) |
| Analog output accuracy | ±1.0% of full scale, 0 to 55 °C |
Catalog Number Format
How to read an Allen-Bradley 1761 catalog number. Each position encodes a specific configuration attribute.
Communication Protocols
Supported industrial networks and field buses for the products covered by this publication.
Certifications & Compliance
Document Contents
Full PDF covers the following topics in detail:
- Installation, wiring diagrams and grounding
- Connecting the system (RS-232, DH-485 through the AIC+ 1761-NET-AIC)
- Programming, addressing and instruction set
- Analog I/O configuration (-5A controllers)
- Appendix A hardware specifications, dimensions and replacement parts
Frequently Asked Questions
Which MicroLogix 1000 controllers have analog I/O?
Which communication protocols does the MicroLogix 1000 support?
How much current can a MicroLogix 1000 relay output switch?
Disclaimer
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.