• PN: SNAT617CHC, Spare Code: 61037136D
• Brand: ABB
• Type: Chopper Control Board

• Function: The core signal processing control board of ABB ACS/ACC617 series high-power DC drive, responsible for brake chopper PWM signal output, real-time collection of drive voltage, current and temperature feedback signals, executing overvoltage energy dissipation control logic, realizing speed closed-loop regulation, fault signal detection and interlock protection, ensuring stable operation of high-power DC drive system during heavy load and braking conditions

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Core Features

1. High-precision PWM chopper drive control, adjustable switching frequency, effectively absorb regenerative energy to prevent DC bus overvoltage
2. Integrated multi-channel analog and digital signal acquisition circuit, supports 0-10V / 4-20mA speed command input
3. Built-in overvoltage, overcurrent, overtemperature, short-circuit multiple hardware protection, automatic fault lockout and alarm output
4. Onboard RS485 Modbus RTU communication interface, realizes data interaction with upper PLC/DCS system
5. Industrial-grade isolation anti-interference design, 1500VAC isolation between signal loop and power supply, adapts to harsh industrial electromagnetic environment

6. Standard plug-in PCB structure, fixed installation inside drive cabinet, convenient disassembly and maintenance replacement

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Technical Specs

• Power Supply: 24VDC ±10%
• PWM Output Frequency: 1kHz~20kHz adjustable
• Analog Signal Range: 0~10V, 4~20mA
• Communication: RS485 Modbus RTU
• Operating Temperature: -20℃ ~ +60℃
• Storage Temperature: -40℃ ~ +85℃, 5%~95% RH non-condensing
• Dimension: 235 × 200 × 40mm
• Net Weight: 0.4kg
• HS Code: 8537101190
• Certification: CE certified

• Product Status: Discontinued original production, supplied with tested surplus spare parts

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Compatibility

• Applicable Equipment: ABB ACS617, ACC617 series high-power DC drive devices
• Matching Accessories: Drive power unit, braking resistor, current/voltage sampling module
• Upper System: ABB 800xA, Advant OCS DCS, third-party PLC and SCADA monitoring system

• Not Compatible: ACS800, ACS510, ACS580 series AC frequency converters, non-617 series drive backplanes

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Application

• Braking energy control and speed regulation for metallurgical rolling mills, mine hoists, paper machines, large extruder DC drive systems
• Fault replacement of aging chopper control boards for on-site ABB 617 series drive equipment
• Drive system renovation, heavy-load frequent start-stop industrial equipment safety control

• Regenerative energy dissipation protection for high-power variable speed drive units

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Our Advantage

• Signal sampling, chopper action, communication stability and aging tests completed before delivery
• 12-month warranty for new original and fully tested surplus boards