ABB 3BHE010751R0101(PPC902AE101) factory-original ABB control PCB
This component’s commercial ordering code is PPC902AE101, a factory-original ABB control PCB made in Switzerland, belonging to the 3BHE series dedicated board for medium voltage converter and generator excitation system. It matches ABB UNITROL excitation cabinet and ACS6000/PCS6000 high-power medium voltage converter, compatible with AC800PEC and 800xA DCS control platform. The whole PCB is coated with anti-damp, anti-dust three-proof paint, integrating core processing chip, analog/digital signal acquisition circuit and bus communication circuit, serving as local signal collection and auxiliary control unit inside converter power cabinet and excitation rectifier cabinet.
Description
1.Product Brief Introduction
This component’s commercial ordering code is PPC902AE101, a factory-original ABB control PCB made in Switzerland, belonging to the 3BHE series dedicated board for medium voltage converter and generator excitation system. It matches ABB UNITROL excitation cabinet and ACS6000/PCS6000 high-power medium voltage converter, compatible with AC800PEC and 800xA DCS control platform. The whole PCB is coated with anti-damp, anti-dust three-proof paint, integrating core processing chip, analog/digital signal acquisition circuit and bus communication circuit, serving as local signal collection and auxiliary control unit inside converter power cabinet and excitation rectifier cabinet.
2.Model Definition Explanation
3BHE stands for ABB exclusive part prefix of excitation & medium voltage drive control printed circuit board.010751 is the unique internal development serial number defined by ABB R&D department for PPC902AE hardware platform.R0101 means original factory standard hardware revision without later circuit upgrade or component replacement, corresponding to sales ordering model PPC902AE101.
3.Technical Specifications
Rated working auxiliary power DC24V±10%, typical power consumption 9.5W, peak instantaneous power 13W. Operating ambient temperature -20℃~+60℃, storage temperature -40℃~+85℃, applicable humidity 5%~95%RH non-condensing, cabinet plug-in installation with IP20 protection grade, complying with IEC61000 EMC anti-interference specification. Equipped with multi-channel analog signal access supporting 4-20mA, 0-10V, thermal resistance and thermocouple input, 32-channel DC24V digital input and 32-channel digital output, signal response time less than 1ms. Module net weight about 0.24kg, passed CE, UL and SIL2 industrial safety certification.
4.Interface and Communication Configuration
Rear golden finger connector connects rack backplane bus for DC24V power supply and internal system data interaction with main control board. Front side is equipped with terminal wiring terminals for field analog/digital signal access; onboard reserved RS485 bus interface and auxiliary fiber debugging port, supports Modbus RTU and proprietary ABB internal bus protocol, no independent Ethernet external communication port, reserved onboard small debugging pin only for factory parameter calibration and program download.
5.Core Functions
Collect on-site analog quantity including voltage, current, temperature and digital switch state signals of power unit and excitation loop, complete high-precision A/D conversion and data preprocessing, upload processed data to main control unit via backplane bus. Receive control command from main board to output corresponding switching drive signal for peripheral auxiliary relay and switching components. Real-time self-check of onboard circuit operating status, automatically record fault information and send fault feedback signal to master control once signal abnormality, overcurrent or circuit failure occurs to realize interlock protection of relevant equipment.
6.Application Scenarios
Installed inside power cell cabinet of ACS6000/PCS6000 medium voltage frequency converter for metallurgical rolling equipment, mine heavy conveyor and petrochemical large compressor variable frequency drive control. Also configured in UNITROL5000/6000 generator excitation rectifier cabinet of thermal power, hydropower and gas power plants to collect excitation loop operating parameters and realize auxiliary loop logic control.
7.Operation and Maintenance Instructions
Cut off cabinet DC24V control power and wait more than 30 minutes to release residual capacitance charge before disassembly inspection to avoid static breakdown of onboard precision chip. Implement annual routine maintenance: wipe PCB surface and golden finger dust with dry soft brush, check fastening degree of wiring terminals and connector plug-in tightness. When system reports signal collection fault, firstly check field wiring and peripheral sensor before replacing the whole control board; unauthorized disassembly of onboard original components and circuit modification are forbidden.
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