Configured for motor control execution and peripheral I/O signal processing in Advant OCS/800xA VFD drives, the ABB RMIO-11C 68789010 (RMIO-11C Control Board) provides direct physical/electrical execution.

Circuit Board Identification & Assembly Part Numbers

The designated identifier codes correspond to precise physical and structural board revisions:

• RMIO-11C: Base model nomenclature defining the main drive processor and I/O interface board structure.
• 68789010: Manufacturing catalog part code for the conformal-coated printed circuit assembly.
• 3AUA0000035408: Secondary manufacturing spare identification number mapping to identical functional hardware.
• ACS800-11: Specific drive topology integration matching the main inverter frame setup.

Operational Hardware Specifications

Industrial Control & Deterministic Execution Architecture

The RMIO-11C 68789010 interfaces directly with the drive backplane bus, supporting fast internal data throughput across ACS800 control loops. The board maintains firmware flash compatibility to process analog feedback (0-10 V, 4-20 mA) and high-speed digital I/O without execution latency. Built-in logic isolates power distribution paths, sustaining stable deterministic communication over optional EtherNet/IP or Profinet network adapters tied into the central drive processor chassis.

Standard Delivery Contents

• 1 x ABB RMIO-11C 68789010 Conformal Coated Control Board Assembly

Installation & Physical Field Directives

• Disconnect main AC input line supply and verify DC bus capacitors are fully discharged before handling the unit.
• Secure the circuit board inside the drive rack using specified grounding screws to maintain frame continuity.
• Route analog signal wiring separately from 230 V / 500 V AC power cables to mitigate EMI coupling.
• Verify 24 VDC auxiliary power input via the internal V22 LED indicator, confirming voltage remains between 22 VDC and 26 VDC.

Technical FAQ

• Q: What indicates valid logic power presence on the RMIO-11C 68789010 board?

  A: Illuminated LED V22 confirms operational control power status, which must measure within 22 VDC to 26 VDC.

• Q: What is the maximum current capacity for individual 24 VDC digital outputs?

  A: Each digital channel handles up to 0.5 A at 24 VDC and includes integrated short-circuit protection features.

• Q: Can the RMIO-11C board be extracted while the VFD remains energized?

  A: No, extraction during energized states is prohibited; main power and 24 VDC control power must be completely isolated.

• Q: How does the board monitor motor temperature conditions directly?

  A: Thermistor feedback circuitry connects to motor PTC or KTY84 sensors to trigger protection trips upon overtemperature thresholds.

• Q: What is the primary source for the board's 24 VDC power supply input?

  A: Auxiliary 24 VDC power is typically delivered through the main interface board (RINT card) within the ACS800 frame.

• Q: What analog signal types are supported on the board terminal blocks?

  A: Configurable analog channels accept standard 0-10 V voltage inputs and 4-20 mA current loops.

• Q: Does the RMIO-11C possess environmental physical protection?

  A: Yes, the board features an industrial conformal coating to resist humidity and atmospheric particulate contamination.

• Q: What operational temperature boundaries apply to field installations?

  A: Ambient ambient operating limits range strictly between -25 deg C and +55 deg C in non-condensing environments.