RELIANCE 615055-1S AC servo power drive module
615055-1S is an AC servo power drive module belonging to Reliance AutoMax SA500 and DM50 series servo control system, serving as core power amplifier unit for alternating current servo drive equipment. It receives speed and position command signals from main control board, converts input industrial AC power into adjustable variable frequency and variable voltage power to drive matched AC servo motor, realizing precise speed and torque closed-loop control. Original formal production has been discontinued by manufacturer, available market products include surplus original unused stock and fully tested refurbished units, mainly used for maintenance replacement of legacy metallurgy, printing, textile and automated production line servo control cabinet.
Description
Product Introduction
615055-1S is an AC servo power drive module belonging to Reliance AutoMax SA500 and DM50 series servo control system, serving as core power amplifier unit for alternating current servo drive equipment. It receives speed and position command signals from main control board, converts input industrial AC power into adjustable variable frequency and variable voltage power to drive matched AC servo motor, realizing precise speed and torque closed-loop control. Original formal production has been discontinued by manufacturer, available market products include surplus original unused stock and fully tested refurbished units, mainly used for maintenance replacement of legacy metallurgy, printing, textile and automated production line servo control cabinet.
Model Definition
615055 represents fixed base part code of Reliance SA500/DM50 platform power module, confirming unified hardware outline, internal power circuit layout and backplane plug size of the whole series product. Middle digit 1 stands for standard power grade specification matching medium-power servo motor load range. Suffix S signifies industrial strengthened version with upgraded power device heat dissipation structure and reinforced anti-interference circuit design, compatible with all same base code control backplanes without cabinet modification during replacement installation.
Technical Specifications
Rated input power supply is three-phase 380VAC 50/60Hz, allowable input voltage fluctuation scope covers ±15% of rated value. Rated continuous output power matches standard medium-load AC servo motor parameter, internal main power component withstands instantaneous overload up to 150% rated current within 60 seconds. Normal continuous working ambient temperature ranges from -15℃ to +65℃, short-term operation allows -30℃ to +75℃, storage environment temperature is -40℃ to +85℃ under dry non-corrosive air condition. Working environment relative humidity maintains 5%~85% without condensation, internal power loop passes high voltage insulation withstand test conforming to original factory industrial standard. Overall mechanical dimension follows Reliance AutoMax rack standard plug-in specification.
Interface and Communication Configuration
Equipped with high-current wiring terminal for three-phase AC power input and servo motor power output connection. It reserves analog signal terminal for external speed command and feedback signal access, supporting tachometer analog voltage feedback wiring docking. Built-in proprietary Reliance AutoMax bus interface for backplane plug connection to main CPU control board, realizing digital command transmission between module and system master unit, no standard RS485 or Modbus bus external communication port by default configuration.
Core Functions
Receive digital control instruction transmitted from rack main control board via backplane bus, accomplish AC-DC-AC power conversion through internal rectifier and inverter circuit, output adjustable frequency and voltage power to drive servo motor rotation. Real-time collect motor operating current and speed feedback signal, feed back operating data to upper controller to complete closed-loop speed and torque adjustment, automatically suppress load mutation caused output current surge. Internal integrated overvoltage, overcurrent, overheat and phase loss protection circuit, trigger protection shutdown and fault code locking once abnormal operating state occurs to avoid module and matched motor damage.
Application Scenarios
Exclusive matching power module for Reliance AutoMax SA500 and DM50 series servo control rack system. Widely applied in precise fixed-length control of printing production line, speed adjustment of textile spinning and weaving equipment, positioning drive of metallurgical auxiliary conveying mechanism, as well as spare replacement for outdated automated packaging machinery and old numerical control equipment original servo driving cabinet.
Operation and Maintenance Instructions
Cut off total three-phase input power of control cabinet and wait more than 30 minutes for internal capacitor residual charge full discharge before pulling out or installing the module. Confirm backplane pin is free from oxidation and dirt before plugging into rack slot to prevent poor contact and abnormal startup fault. Avoid continuous long-time overload running exceeding rated parameter to reduce internal power component aging speed. Conduct quarterly routine maintenance, clean module surface and heat sink accumulated dust with dry compressed air, check wiring terminal fastening tightness and insulation aging status. Prohibit private disassembly of internal encapsulated power circuit; replace whole module after eliminating peripheral wiring and load fault when internal power loop failure appears.
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