1762-L40BWA Allen-Bradley MicroLogix 1200 40-Point Controller

1762-L40BWA | Allen-Bradley | MicroLogix 1200 PLC with 24 DC Inputs and 16 Relay Outputs

The 1762-L40BWA is an Allen-Bradley MicroLogix 1200 40-point controller module. It has 24 DC inputs, made of 20 standard 24V DC and 4 fast 24V DC. Sink or source wiring both work. It has 16 relay outputs rated 24-125 VDC and 120-240 VAC. Relay mechanical life is 20,000,000 cycles. The unit runs on 120 to 240 VAC at 47 to 63 Hz. One 8-pin mini-DIN RS232 port supports DH-485, DF1, Modbus master/slave, and ASCII. Mount it on DIN rail or panel. It fits panels that mix 24V DC sensors with AC relay loads.

Technical Data

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Catalog Number: 1762-L40BWA
• Series: MicroLogix 1200
• Input power: 120 to 240 Volts AC, 47 to 63 Hz
• Inputs: 24 DC, 20 standard plus 4 fast, sink/source
• Outputs: 16 relay contacts
• Relay contact rating: 24-125 VDC and 120-240 VAC
• Mechanical cycles: 20,000,000
• Load current: 10A minimum
• Communication port: One 8-pin mini-DIN RS232
• Supported protocols: DH-485, DF1 full and half duplex, Modbus master/slave, ASCII
• Internal power supply: Yes
• Power supply usage: 82 VA
• Inrush current: 120V ac 25A for 8 ms; 240V ac 40A for 4 ms
• Dimensions: Height 90 mm (104 mm with DIN latch open), Width 160 mm, Depth 87 mm
• Shipping weight: 2.4 pounds
• Operating temperature: 0 to 50°C (module), 0 to 55°C (ambient)
• Mounting: DIN rail or panel mount
• UPC: 10612598207234

Where It Fits

• Conveyor and sorting cells with fast DC sensors and relay-driven motors.
• Packaging lines that mix 24V DC sensing with 120V AC valve and contactor loads.
• Water and wastewater panels with Modbus meters on the serial port.
• Production lines using ASCII barcode scanners.
• Retrofit jobs replacing failed MicroLogix 1200 controllers.

FAQ

Q: What is the difference between the 1762-L40BWA and the 1762-L40AWAR?

A: The input circuit differs. The 1762-L40BWA takes 24V DC sink/source inputs. The 1762-L40AWAR takes 120V AC inputs. Both have 16 relay outputs and 120-240 VAC supply. Pick the DC version for 24V sensors. Pick the AC version for 120V pilot devices.

Q: How do I use the four fast inputs?

A: Wire them to the sensors that need short-pulse capture. These include encoders, counters, and high-speed proximity switches. Normal inputs may miss fast pulses. Keep the pulse width within the fast input spec. Test one channel with your actual sensor before you wire the full machine.

Q: Do I need a converter for DH-485?

A: Yes. DH-485 on a network bus needs an external 1761-NET-AIC converter. Without it, the port cannot join the DH-485 bus. For single-device links, DF1 or Modbus over RS232 works directly. Plan the converter in your bill of materials.

Q: What should I confirm before ordering a spare 1762-L40BWA?

A: Check three things. First, your sensors output 24V DC and need sink or source wiring. Second, your loads fit 16 relay outputs and stay inside the 10A load current. Third, your supply is 120-240 VAC. Send us a rack photo and wiring drawing. We confirm fit before shipment.

Q: What about shipping and warranty?

A: We dispatch in 24 to 28 hours. We ship by FedEx, UPS, or DHL. Every controller carries a 12-month warranty. We test each unit before it leaves our warehouse. For order questions, email info@oiltechcontrols.com.