ABB RINT-5611 / RINT-6621C — Fiber Optic Communication Interface | ACS/DCS Drive Platform
Engineering Background
The RINT-5611 and RINT-6621C are ABB’s dedicated fiber optic communication interface boards engineered for integration within the ACS and DCS series of industrial variable-speed drives. Designed to operate in high-noise industrial environments, these modules provide electrically isolated, high-speed serial communication between the drive control unit and external automation systems, PLCs, or distributed control networks.
Product Positioning
As a procurement engineer sourcing critical drive communication components, the RINT-5611/RINT-6621C (ABB part number 64690698) represents a factory-original, drop-in replacement solution. Konmask.com supplies this module with full traceability, supporting MRO (Maintenance, Repair & Operations) and new-build automation projects across process industries, marine, energy, and heavy manufacturing sectors.
Complete Technical Specifications
- Manufacturer: ABB Ltd. (Finland)
- Part Number / SKU: RINT-5611 / RINT-6621C | ABB Ref: 64690698
- Module Type: Fiber Optic Communication Interface Board
- Compatible Drive Series: ABB ACS 600, ACS 800, ACS 1000, DCS 600, DCS 800
- Communication Protocol: DDCS (Distributed Drives Communication System) — ABB proprietary fiber optic protocol
- Interface Type: Fiber optic (plastic / glass fiber), electrically isolated
- Transmission Speed: Up to 4 Mbit/s (DDCS standard)
- Channels: Multiple DDCS channels for master/follower drive topology
- Supply Voltage: Powered via drive backplane (internal bus)
- Operating Temperature: 0°C to +55°C (storage: -40°C to +70°C)
- Humidity: 5–95% RH, non-condensing
- Form Factor: Plug-in option board for ACS/DCS drive control unit slot
- Weight: Approx. 500 g (module + packaging)
- Compliance: CE, RoHS
- Country of Origin: Finland
Proven Application Environments
- Process Industry: Pulp & paper mills, cement plants, chemical processing — multi-drive DDCS ring topologies
- Marine & Offshore: Vessel propulsion and thruster control systems using ACS 800 multi-drive configurations
- Energy & Power: Wind turbine converters, hydro plant drives, and grid-tie inverter systems
- Heavy Manufacturing: Steel rolling mills, mining conveyors, and crane hoist drives requiring synchronized multi-axis control
- Water & Wastewater: Pump station variable-speed drive networks with centralized SCADA integration
- Oil & Gas: Compressor and pump drive systems in hazardous-area control architectures
Engineering Advantages
- Electrical Isolation: Fiber optic medium eliminates ground loops and EMI coupling — critical in high-power drive environments
- High-Speed DDCS: Deterministic, low-latency communication enables tight master/follower torque and speed synchronization
- Plug-In Compatibility: Direct slot installation into ACS/DCS control units — no hardware modification required
- Scalable Topology: Supports point-to-point, ring, and star DDCS network configurations for flexible system architecture
- Robust Industrial Design: Conformal-coated PCB withstands vibration, humidity, and airborne contaminants
- Long Service Life: ABB factory-grade components rated for continuous 24/7 industrial operation
System Architecture & Signal Flow
The RINT-5611/RINT-6621C installs into the option board slot of the ACS/DCS drive control unit. The module interfaces the drive’s internal DDCS bus to external fiber optic cables, enabling communication with:
- ABB AC 80 / AC 800M / AC 800PEC controllers (master PLC)
- Adjacent drives in a master/follower ring (speed/torque reference distribution)
- External I/O extension units (NDIO, NAIO modules)
- Fieldbus adapter boards (NPBA, NIBA series) for Profibus, Modbus, DeviceNet integration
Signal flow: PLC/Controller → Fiber TX/RX → RINT-5611/6621C → Drive DDCS Bus → Control Unit CPU → PWM Gate Drive
Sourcing & Quality Verification
- Origin: Factory-original ABB module — not aftermarket or remanufactured
- Traceability: ABB part number 64690698 verified against ABB spare parts catalog
- Inspection: Each unit undergoes visual inspection, connector integrity check, and functional verification prior to dispatch
- Packaging: Anti-static ESD bag + foam-padded carton for safe international transit
- Warranty: 12-month Konmask quality guarantee — DOA replacement within 30 days
- Documentation: ABB hardware manual reference available upon request (3AUA0000001 series)
Procurement Process
- Confirm Compatibility: Verify your drive model and control unit slot designation (CH1/CH2/CH3) against ABB drive documentation
- Request Quote: Contact support@konmask.com for volume pricing, lead time, and export documentation
- Place Order: Purchase directly via Konmask.com — secure checkout, multiple payment methods accepted
- Shipping: DHL / FedEx / UPS express international — typical transit 3–7 business days; EXW Xiamen available for freight forwarder arrangements
- Customs & Compliance: HS Code 8537.10 — commercial invoice and packing list provided; CITES/dual-use declaration available on request
- After-Sales: Technical support via email or WhatsApp (+0086 19859288691) for installation guidance and commissioning assistance
Technical FAQ
Q: Is RINT-5611 the same as RINT-6621C?
A: They share the same ABB part number 64690698 and are functionally equivalent DDCS fiber optic interface boards. Minor PCB revision differences exist but are transparent to the drive firmware.
Q: Which fiber type is required — plastic or glass?
A: The RINT-5611/6621C supports both plastic optical fiber (POF, up to ~10 m) and glass fiber (GOF, up to several hundred meters) depending on the DDCS channel connector type. Confirm with your ABB drive wiring diagram.
Q: Can this module be used with ACS 355 or ACS 580?
A: No. The RINT-5611/6621C is designed for ACS 600/800/1000 and DCS 600/800 platforms. ACS 355/580 use different option board form factors (FCAN, FPBA series).
Q: Do you provide an ABB factory test certificate?
A: Konmask provides its own inspection report. ABB factory test certificates are available for new-production orders; contact us for details.
Q: What is the lead time for urgent MRO orders?
A: In-stock units ship within 1–2 business days. Express DHL delivery to most destinations in 3–5 business days.
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Contact: support@konmask.com | +0086 19859288691
