ABB RINT-5611C 68718929 Main Circuit Interface Board

The ABB RINT-5611C (Part Number 68718929) is a Main Circuit Interface Board designed for use within the ABB ACS800 series variable frequency drives. It is specifically engineered for ACS800-01 and ACS800-04 units with an R6 frame size, operating on 380–500 VAC supply systems. This board serves as a critical interface between the drive's control electronics and the power section, facilitating signal processing, communication, status monitoring, and coordination of drive operations.

Features

• Serves as the primary interface for conditioning, isolating, and transmitting signals between the main power circuit and control/protection systems.
• Provides robust galvanic isolation between high-power primary circuits and sensitive low-voltage electronics to ensure measurement accuracy and system safety.
• Integral component for fault management and stable drive performance.
• Compatible with ACS800 R6 frame configurations.

Applications

• Mining and Metallurgy: Hoists, conveyor belts, crushers, and steel rolling machinery.
• Petroleum and Chemicals: Drilling pumps, injection pumps, centrifuges, and large-scale fans.
• Electric Power Industry: Coal feeders, induced draft fans, and circulating water pump systems.
• Shipbuilding: Propulsion systems and deck machinery including winches and cranes.
• Papermaking and Water Treatment: Multi-drive control systems and large-scale pumping stations.

Technical Specifications

Installation Guidelines

• Qualified Personnel: Only licensed electricians should perform installation and maintenance.
• Power Isolation: Isolate all main and auxiliary power supplies. Perform proper Lock-Out/Tag-Out (LOTO) procedures.
• Capacitor Discharge: Wait at least 5 minutes after shutting off input power to allow intermediate circuit capacitors to discharge.
• Voltage Verification: Measure voltage between terminals UDC+ and UDC-, and across phases U1, V1, W1, to ensure the potential is near 0 V before handling components.
• Maintenance Note: The replacement kit includes an internal cooling fan (PN: 63998931); this fan must be replaced simultaneously with the RINT board to ensure proper thermal management.

FAQ

What is the function of the RINT-5611C board?

It acts as the main circuit interface board, primarily used in ABB ACS800 R6 frame drives to connect the control unit with the IGBT power stage.

Is this product brand new?

Yes, the ABB RINT-5611C is supplied as a new, original, and unused component.

Do you provide a warranty?

Yes, we provide a 12-month warranty for this component from the date of delivery.