Allen-Bradley 1771-P6S Power Module

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Allen-Bradley 1771-P6S Power Module Product Information

Product Description

Detailed Parameters

• Input Specifications: 120V AC input, frequency 50/60Hz, input current 1.5A, with input overvoltage protection (triggered at 140V AC±5%).
• Output Specifications:
  • 5V DC/4A: Powers main control circuits and I/O module logic circuits, output accuracy ±5%, ripple noise ≤100mV peak-to-peak.
  • 24V DC/1.5A: Powers external sensors and relay coils, output accuracy ±10%, ripple noise ≤200mV peak-to-peak.
  • 15V DC/0.5A (positive) and -15V DC/0.25A (negative): Provides bias power for analog modules.
• Protection Functions: Equipped with 5V DC overcurrent protection (current limit 5A), 24V DC short-circuit protection (hiccup mode, automatic recovery), and automatically enters low-power mode when no load.
• Operating Environment: Operating temperature 0℃~60℃, storage temperature -40℃~85℃, relative humidity 5%~95% (non-condensing), protection class IP20 (suitable for control cabinet installation).
• Mechanical Specifications: Width×height×depth approximately 165mm×110mm×220mm, compatible with 1771 series I/O racks (e.g., 1771-A1B, 1771-A2B), rack-mounted.
• Certification Standards: UL 508, CSA C22.2 No.14, CE certified, compliant with IEC 61131-2 industrial control equipment standards.

Advantages and Features

• Multi-Voltage Output Integration: Simultaneously provides 5V, 24V, ±15V DC power, meeting mixed power supply needs of different I/O modules and reducing the number of power modules.
• Legacy System Compatibility: Specifically designed for 1771 series I/O racks, compatible with early SLC 500 system expansion, suitable for upgrading and maintaining old equipment, reducing system replacement costs.
• Stable Output Performance: Low ripple output ensures measurement accuracy of analog modules; 24V power can directly drive small relays (e.g., drive circuits of 120V AC coil relays).
• Industrial-Grade Durability: Wide temperature range and anti-vibration design (5g acceleration, 10-500Hz) adapt to dusty, temperature-fluctuating industrial environments, with mean time between failures (MTBF) ≥10⁵ hours.
• Simple Installation and Maintenance: Rack-mounted without additional fixtures; LED indicators (power, overload) intuitively display working status, facilitating quick diagnosis of power faults.

Application Fields

• Legacy Production Line Upgrades: Powers 1771 series I/O modules in old automobile assembly lines, supporting continuous operation of original control systems and avoiding production stoppages due to power failures.
• Machine Tool Control Loops: In I/O expansion racks of old CNC machine tools, provides 24V power for limit switches and solenoid valves, ensuring basic control functions of the equipment.
• Warehousing Logistics Old Equipment: Adapts to I/O modules of early automated warehouses, powers photoelectric sensors and conveyor drive relays, extending equipment service life.
• Municipal Public Facilities: Used in old control cabinets of wastewater treatment plants, provides stable power for pH sensors (requiring ±15V power) and level switches, maintaining basic monitoring functions.
• Laboratory Legacy Equipment: Powers I/O modules of early R&D test benches, supporting continued use of old experimental equipment and reducing equipment update investment.

Notes

• Confirm compatibility of 1771 racks during installation; 1771-P6S is only applicable to 1771 series I/O racks and cannot be directly used in ControlLogix or CompactLogix systems.
• Input power must be equipped with a 10A slow-blow fuse; it is recommended to configure 3A fuses for 24V DC output circuits to prevent sensor short circuits from affecting other outputs.
• Ensure good contact of backplane plugs between the module and rack; regularly check for plug oxidation after long-term use, clean with anhydrous alcohol if necessary.
• As a legacy product, it is recommended to stock a certain number of spare parts to avoid replacement difficulties due to discontinuation; 1746-P4 and other alternative models can be selected when upgrading the system.
• Working environment temperature should not exceed 50℃ for a long time, otherwise output voltage accuracy may decrease; install cooling fans when ventilation is poor to maintain air circulation.

The structure and details of the product：

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