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AEG AS-P933-01
- Product Introduction: AEG AS-P933-01 is a high-reliability 120W redundant power supply module exclusively designed for Modicon 900 series PLC chassis, engineered to deliver uninterrupted, stable DC power to PLC CPU, I/O and communication modules in mission-critical industrial automation and process control applications. The module features dual independent 24 V DC input power paths, automatic power failover, high efficiency power conversion, and comprehensive overvoltage/overcurrent protection, ensuring zero power interruption to the PLC system if one input power source fails. It has a compact modular design, seamless backplane integration, and real-time status monitoring with LED indicators, making it an essential component for safety instrumented systems (SIS), critical process control, and 24/7 continuous operation applications where PLC downtime would result in production loss, equipment damage, or safety hazards.
- Technical Specifications:
- Power Output: 24 V DC (adjustable ±5% via trim potentiometer), 5 A continuous output (120 W total power)
- Input Power: Dual redundant 24 V DC input (Path 1 + Path 2), 18-30 V DC operating range per input
- Power Failover: Automatic seamless switchover (<1 ms) between input paths, no PLC system interruption
- Conversion Efficiency: >92% at full load, >90% at 50% load (high efficiency reduces heat generation)
- Ripple & Noise: <30 mV peak-to-peak (at 24 V DC output, full load) – low noise for sensitive PLC electronics
- Protection Features: Overvoltage protection (OVP: 28.8 V DC auto-shutoff), overcurrent protection (OCP: 6 A current limit), overtemperature protection (OTP: thermal shutdown at 85°C), reverse polarity protection (input paths)
Detailed content
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- Power Distribution: Isolated 24 V DC power to Modicon 900 series backplane, independent power to CPU slot and I/O slots
- Status Monitoring: LED indicators for Power Path 1 Active (green), Power Path 2 Active (green), Module Fault (red), Output Power Active (green)
- Backplane Interface: Modicon 900 series proprietary power/communication backplane, plug-and-play installation
- Cooling Method: Passive natural convection (no fan) – fanless design eliminates moving parts and failure points
- Form Factor: Standard Modicon 900 series chassis module, single-slot mounting
- Operating Temperature: -25°C to +70°C (fanless design enables operation in high-temperature control cabinets)
- Storage Temperature: -40°C to +85°C
- Vibration Resistance: 5-50 Hz, 1 g acceleration (IEC 60068-2-6); shock resistance 15 g, 11 ms (IEC 60068-2-27)
- Protection Class: IP20 (cabinet-mounted)
- Dimensions: 80 mm (W) × 160 mm (H) × 60 mm (D)
- Weight: 0.95 kg
- Compliance: IEC 60950-1, IEC 61000-6-2 (EMC), CE, RoHS, UL 508 (industrial power supply standard)
- Compatibility: All Modicon 900 series PLC chassis (AS-P900/930/940), Modicon 984 series chassis (via adapter)
- Functional Features:
- Dual redundant 24 V DC input paths with <1 ms automatic failover ensure 100% power availability for the PLC system – if one input power source (e.g., main power supply) fails, the module instantly switches to the secondary source (e.g., UPS/battery backup) with no PLC downtime or data loss.
- 120 W (5 A @24 V DC) continuous output provides sufficient power for fully populated Modicon 900 series chassis (CPU + 7 I/O/communication modules), supporting large-scale PLC systems for mission-critical applications.
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92% high conversion efficiency minimizes energy waste and heat generation in the control cabinet, reducing the need for additional cooling and extending the service life of adjacent PLC modules.
- Low output ripple & noise (<30 mV p-p) delivers clean, stable DC power to sensitive PLC electronics (CPU, communication modules), eliminating signal interference and ensuring reliable PLC operation.
- Fanless passive cooling removes mechanical failure points (fans, bearings), increasing module reliability and enabling operation in dusty, high-vibration industrial environments where fan clogging/failure is a common issue.
- Comprehensive protection features (OVP/OCP/OTP/reverse polarity) safeguard both the power supply module and connected PLC modules from electrical faults, surges, and incorrect wiring – critical for industrial power grids with unstable voltage and transient spikes.
- Isolated power distribution to the PLC backplane prevents ground loops and electrical interference between the power supply and PLC modules, preserving signal integrity for high-speed I/O and communication.
- Real-time multi-LED status indicators provide instant visual diagnostics for input power path activity and module faults, enabling on-site engineers to quickly identify power supply issues and resolve them with minimal downtime.
- ±5% adjustable output voltage trim compensates for cable voltage drop in long wiring runs to the PLC chassis, ensuring the PLC modules receive the exact 24 V DC operating voltage required.
- Plug-and-play backplane integration with Modicon 900 series chassis enables quick, tool-free installation and replacement – no additional wiring or configuration is required for basic operation, streamlining system commissioning and maintenance.
- Rugged industrial design with wide temperature tolerance (-25°C to +70°C) and vibration/shock resistance ensures reliable operation in harsh industrial environments, including chemical plants, oil refineries, mining sites, and offshore platforms.
- Application Scenarios:
- Safety Instrumented Systems (SIS) in chemical and petrochemical processing plants – redundant power ensures the SIS PLC remains operational to trigger emergency shutdowns and prevent hazardous process conditions.
- Oil and gas refineries/pipelines – uninterrupted PLC power for critical pump, valve, and pipeline monitoring systems, where downtime could result in costly product loss or environmental damage.
- Power generation and distribution facilities – redundant power for PLC systems controlling turbine, generator, and substation equipment, ensuring continuous operation of critical power infrastructure.
- Pharmaceutical manufacturing – GMP-compliant batch process control, where PLC downtime would result in lost production batches and non-compliance with regulatory standards.
- Water and wastewater treatment plants – redundant power for PLC systems controlling raw water intake, treatment processes, and effluent discharge, preventing untreated water release and environmental hazards.
- Automotive manufacturing – 24/7 production line control, where PLC downtime would halt entire assembly lines and result in significant production loss.
- Marine and offshore platforms – redundant power for shipboard/offshore PLC systems, with rugged design for salt-laden, high-vibration environments and unreliable on-board power grids.
- Mining and mineral processing – PLC systems controlling underground conveyor belts, crushers, and ventilation systems, where redundant power ensures worker safety and continuous material handling.
- Data center industrial control – redundant power for PLC systems monitoring and managing critical cooling, power distribution, and fire safety systems in data centers, where downtime is not an option.
- Aerospace and defense manufacturing – precision production process control, where PLC downtime would disrupt high-value manufacturing and assembly operations.
