The ABB RINT-5521C 3AUA0000016016E, also cataloged as the RINT-5521C Industrial Circuit Voltage Converter, operates as a dedicated hardware component for IGBT gate switching execution and main circuit interface signaling within ACS800 inverter drives.

Hardware Designation & Architecture

• Base Designation: RINT-5521C
• OEM Part Number: 3AUA0000016016E
• Hardware Type: IGBT Gate Driver Interface Board / Main Circuit Interface
• Host System Compatibility: ABB ACS800 Series (55 kW to 75 kW power frames)

Operational Physical & Electrical Data

Deterministic Gate Control & Board Configuration

The RINT-5521C interface board converts +24 VDC auxiliary power into isolated +/-15 V gate drive signals for phase switching execution up to 4 kHz. Hardware configuration requires precise solder bridge settings on designated jumpers to set phase current scaling across U, V, and W output branches to match specific inverter frame sizes. The board supports backplane bus communication and firmware flash compatibility checks with the main drive controller while enforcing integrated Safe Torque Off (STO) hardware interlocks up to SIL 3 thresholds.

Shipment Box Contents

• 1 x ABB RINT-5521C 3AUA0000016016E Driver Board
• Protective conductive anti-static bubble enclosure

Mounting Protocol & Grounding Guidelines

ESD Control & Electrostatic Handling

• Handle the board strictly by its insulated fiberglass edges while wearing an earth-grounded ESD wrist strap.
• Do not remove the board from its static-shielding package until immediately ready for mechanical fastening.

Physical Frame Insertion

• Isolate all AC main supply sources and wait at least 5 minutes for intermediate DC bus capacitors to fully discharge.
• Verify zero voltage on the intermediate circuit using a calibrated multimeter before opening the module chassis.
• Align board mounting holes with internal metallic standoffs and torque fasteners evenly to establish frame grounding.

Engineering FAQ Technical Answers

• What is the input control voltage requirement for the board?

  The board requires an auxiliary DC operating supply of +24 VDC applied directly across the power input header.

• What voltage level is generated at the gate driver outputs?

  The gate driver circuits output a nominal differential drive signal of +/-15 V typical to switch the IGBT gates.

• What maximum switching frequency does the drive board support?

  The driver interface processing stage supports continuous PWM switching pulse frequencies up to 4 kHz.

• How is current scaling configured for U, V, and W phase legs?

  Current feedback scaling is adjusted by setting specific onboard jumper soldering configurations prior to installation.

• What thermal parameters dictate safe operating conditions?

  Operating ambient temperatures must remain between -40 deg C and +70 deg C in non-condensing relative humidity.

• Is hot-plugging permitted during drive maintenance?

  Hot-plugging is strictly prohibited; all power rails and control logic must be de-energized prior to board replacement.

• What safety interlock features are embedded on the board?

  The hardware integrates Safe Torque Off (STO) channels to isolate power stage output according to SIL 3 limits.

• What total weight and transit packaging dimensions apply?

  The unit weighs 1.15 kg and ships in package dimensions measuring 43.0 cm by 24.3 cm by 7.0 cm.