RELIANCE 60002-3 Power Technology Processor control board
60002-3 (full formal part code 0-60002-3) is a Power Technology Processor control board independently developed by Reliance Electric, belonging to Automax PMI rack system core drive control component, specially matched with the brand's classic DC variable speed drive unit. This PCB board is responsible for sampling armature and field loop feedback signals of DC drive, completing digital conversion and closed-loop operation calculation of current and voltage, and outputting trigger gate signals for power thyristor modules. Original formal production has been discontinued, current circulating products in market are surplus original stock and professionally refurbished spare parts, mainly used for fault replacement and equipment renovation of legacy Reliance DC speed control system in metallurgy, papermaking and rubber industries.
Description
Product Introduction
60002-3 (full formal part code 0-60002-3) is a Power Technology Processor control board independently developed by Reliance Electric, belonging to Automax PMI rack system core drive control component, specially matched with the brand's classic DC variable speed drive unit. This PCB board is responsible for sampling armature and field loop feedback signals of DC drive, completing digital conversion and closed-loop operation calculation of current and voltage, and outputting trigger gate signals for power thyristor modules. Original formal production has been discontinued, current circulating products in market are surplus original stock and professionally refurbished spare parts, mainly used for fault replacement and equipment renovation of legacy Reliance DC speed control system in metallurgy, papermaking and rubber industries.
Model Definition
60002 is fixed series code of Reliance power processing mainboard for Automax drive control framework, representing core signal processing PCB module of DC governor power loop; suffix digit 3 stands for third-generation hardware revision specification of this series board, confirming fixed circuit layout, peripheral connector definition and compatible rack slot standard of this version.
Technical Specifications
Rated working power supply is 5VDC and ±15VDC bus power supplied from rack backplane, total rated power consumption is about 12W. Input analog signal supports DC 0~10V voltage and 4~20mA current feedback signal access from drive field winding and armature loop. Operating ambient temperature range is 0℃~+60℃, storage temperature spans -40℃~+85℃, applicable working environment relative humidity keeps 5%~93% non-condensing. Onboard equipped multi-channel overvoltage, overcurrent and watchdog fault monitoring circuit, automatic lock output and record fault status once parameter exceeds rated threshold. The board integrates FPGA logic chips, precision sampling resistance and pulse drive circuit, completes high-speed real-time operation of closed-loop regulation algorithm.
Interface and Communication Configuration
Front panel reserves four multi-core female aviation connectors separately marked as Feedback, Fwd Gates, Rev Gates, Fdbk & Gates, among which Feedback is used for field and armature feedback signal wiring, Fwd Gates and Rev Gates output forward and reverse thyristor trigger pulse respectively. Rear board edge is equipped with dedicated golden finger backplane bus connector for plug-in connection with Automax rack backplane to realize power taking and internal bus data interaction with upper processor module. No independent external RS485 or fieldbus interface is arranged on front side, system remote parameter reading and modification are realized via rack internal backplane communication bus. One green running indicator LED is set on panel to display normal power-on operating state of the board.
Core Functions
Collect real-time current and voltage feedback signals from DC drive power loop, convert analog field signals into digital data through onboard sampling circuit, execute armature current closed-loop and field excitation closed-loop control algorithm to stabilize DC motor output torque and rotating speed. Generate accurate phase-shift trigger pulses to control turn-on timing of main power thyristor, realize stepless speed adjustment of DC motor. Built-in hardware watchdog circuit automatically cuts off trigger output when program operation is abnormal to avoid power module breakdown caused by out-of-control drive. Complete fault code caching and status uploading to upper Automax main control unit via backplane for centralized system fault diagnosis.
Application Scenarios
Mainly matched with Reliance legacy series DC governor for driving large DC rolling motor in metallurgical rolling production line, constant-torque transmission motor of papermaking forming equipment and main drive motor of rubber mixing vulcanization production line. Widely used for emergency spare part replacement and old equipment upgrading of water treatment, printing machinery and mining hoist DC drive control cabinet equipped with Automax rack system.
Operation and Maintenance Instructions
Cut off total power supply of control cabinet and confirm bus voltage fully discharged before plugging and removing the board, insert along rack guide rail and fasten panel fixing screws to prevent poor contact of golden finger caused by loose installation. Avoid installing the module at positions close to heat source and oil mist environment to prevent PCB circuit corrosion and component aging. Carry out power-off maintenance every six months, blow off surface dust of circuit board with dry compressed air, check pin oxidation status of each front connector and terminal wiring tightness. Do not disassemble onboard original components without authorization when fault occurs; replace the whole board or send to professional factory for component-level maintenance after excluding external wiring failure.
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