Purchase now: Allen-Bradley 1762-L24BXB MicroLogix 1200 Controller
Atlantechdrives provides you the 1762-L24BXB, a high-performance, compact programmable logic controller from the MicroLogix 1200 series. This unit is specifically engineered for industrial environments requiring a blend of high-speed DC inputs and versatile output options, including both fast-switching FETs and rugged relays.
- Input Power: 24V DC
- Total I/O: 24 Points
- Inputs: 14 24V DC Inputs (including high-speed points)
- Outputs: 10 Total (6 Relay and 4 Protected FET Outputs)
- Memory: 6KB User Program/Data
- Communication: RS-232 Port (8-pin Mini-DIN)
Technical Performance: Hybrid Output Efficiency
The 1762-L24BXB is designed to solve complex automation tasks in a single footprint. Its standout feature is the hybrid output configuration. The 6 relay outputs are ideal for switching high-current AC or DC loads, such as motor starters and heavy-duty solenoids, providing the electrical isolation necessary for diverse field devices. Meanwhile, the 4 FET outputs offer the high-speed switching capabilities required for pulse-width modulation (PWM) and pulse-train output (PTO) applications, such as controlling stepper motors or small servo drives. This makes the 1762-L24BXB one of the most flexible controllers for material handling, specialty machines, and assembly lines. Its processing speed is significantly higher than the MicroLogix 1000, and it supports up to 6 expansion I/O modules from the 1762 series, allowing for extensive system scalability as your production needs grow.
Expert Tips: High-Speed Counter (HSC) Utilization
When implementing the 1762-L24BXB, take full advantage of the embedded High-Speed Counter (HSC). The first few inputs are capable of processing frequencies up to 20 kHz. This is critical for applications involving rotary encoders or flow meters. To ensure signal integrity at these speeds, we recommend using shielded twisted-pair cabling for the HSC inputs and grounding the shield only at the PLC side. In the software configuration within RSLogix 500, verify that your input filter times are set to the minimum for these specific channels; otherwise, the hardware filter might attenuate the high-frequency pulses, leading to inaccurate count data and process errors.
Installation and Thermal Management
The 1762-L24BXB is a 24V DC powered unit, making it ideal for mobile equipment or panels with centralized DC power. Ensure that your power supply is rated for at least twice the nominal current draw to handle the initial inrush. The controller features a DIN-rail or panel mounting design. For optimal thermal performance, always mount the unit horizontally. Vertical mounting can restrict natural convection, leading to localized heating that may shorten the life of the internal electrolytic capacitors. If you are adding expansion modules, ensure the flat ribbon cable is fully seated and the bus latches are locked to prevent communication timeouts on the 1762 expansion bus.
FAQs
Q: Does the 1761-L24BXB require a battery?
A: It uses a non-volatile flash memory for program backup, but an optional 1762-BA battery can be used to maintain the Real-Time Clock (RTC) and retentive data during long power-off periods.
Q: Can the FET outputs handle AC loads?
A: No, FET outputs are strictly for DC loads. Using AC on these points will result in immediate hardware failure.
Do you need more references from this brand? Explore our full catalog of Allen-Bradley here.
