ABB 560PSU81 1KGT008700R0001 is a dedicated AC/DC power supply module for ABB RTU560 series Remote Terminal Units (RTU). It is not a communication module. Usually matched with communication units such as 560CMU and 560CMR, it provides stable AC-DC conversion and redundant power supply for the whole station.
Product Advantages
Industrial Wide Voltage CompatibilitySupports universal global AC input from 110 to 230 V and adapts to 50/60 Hz power frequency, requiring no additional transformer.
High-reliability Redundant StructureSupports parallel redundancy of dual modules with automatic fault switching within 20 ms, ensuring uninterrupted operation in critical scenarios such as power and oil & gas industries.
Comprehensive Protection MechanismBuilt-in overvoltage, overcurrent, short circuit, overtemperature and reverse polarity protection. It realizes automatic current limiting and shutdown upon faults, and auto-restarts after recovery.
Excellent Harsh Environment AdaptabilityOperating temperature ranges from -20℃ to +70℃. Adopts reinforced coated PCB, featuring vibration resistance and strong EMC performance, suitable for outdoor and explosion-proof cabinet applications.
Plug-and-Play & Easy MaintenanceStandard DIN rail mounting design. Equipped with LED indicators for power, redundancy and fault status. Hot-swap supported for replacement without system shutdown.
Product Features
1. Core Technical Parameters
Model: 560PSU81 / 1KGT008700R0001Input: 110–230 V AC, 50/60 HzOutput: 5 V DC (3 A), 24 V DC (5 A), powering communication units and I/O modules inside RTU560 racks
Redundancy: Supports dual-module parallel connection with load balancing and automatic fault switchingProtection: Overvoltage, overcurrent, short circuit, overtemperature and reverse polarity protection
Ambient Conditions: -20℃ ~ +70℃, IP20 protection grade, coated PCBDimension: Standard module, compatible with RTU560 racks (560MPR03/560SFR02)
2. Functional Characteristics
Dual Regulated Output5 V DC for CPU and logic circuits, 24 V DC for I/O and communication interfaces, with output accuracy within ±0.5%.
Redundant Load BalancingLoad is automatically evenly distributed when two modules work in parallel. The other module takes over full load immediately in case of single module failure without data loss.
Status Monitoring & AlarmLED indicators for normal power supply, redundant operation and fault status. It supports dry contact alarm output and can be connected to SCADA systems.
Low Power Consumption & High EfficiencyPower conversion efficiency exceeds 85%, no-load power consumption is less than 5 W, effectively reducing long-term operating costs.
Operation Guide
1. Installation Steps
Rack MountingInsert the module into the DIN rail of RTU560 rack (560MPR03/560SFR02) and tighten the fixing screws.
Wiring Specifications
- AC Input: Connect live wire L, neutral wire N and protective earth PE to 110–230 V AC power supply.
- DC Output: Connect +5 V, GND, +24 V and GND to the power bus on the rack backplane.
- Redundancy Wiring: Interconnect redundancy ports when using dual modules in parallel to realize load balancing and fault switching.
Power-on InspectionAfter switching on AC power, the PWR indicator stays on steadily. The RED indicator lights up under redundant mode. The ALM red indicator flashes when faults occur.
2. Configuration & Commissioning
Redundancy SettingRedundant mode is automatically identified after dual-module parallel connection without extra parameter configuration.
Status MonitoringMonitor power supply status in real time via rack panel LEDs or dry contact signals connected to SCADA system.
Troubleshooting
If the ALM red light flashes, check input voltage, output short circuit and module temperature. The device will recover automatically after faults are eliminated.
FAQ
Q: Is 560PSU81 a communication module?A: No. It is an AC/DC power supply module that supplies power to communication units such as 560CMU05 and I/O modules inside the RTU560 rack.
Q: Does it support 220 V AC input?A: Yes. Its input range covers 110–230 V AC, compatible with global mains power standards.
Q: How to achieve redundant power supply?A: Install two 560PSU81 modules in parallel on the rack and connect their redundancy ports, which enables automatic load balancing and fault switching.
Q: Will data be lost during faults?A: No. The redundancy switching time is less than 20 ms. Combined with the built-in battery of RTU560, it ensures complete data integrity and uninterrupted communication.
Q: What is the operating temperature range?A: -20℃ to +70℃, suitable for harsh environments such as outdoor sites and high-temperature cabinets.
Q: Can it be matched with RTUs of other brands?A: Not recommended. It is specially designed for ABB RTU560 series, featuring optimal compatibility with rack backplanes and communication units.
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