The ABB 3BHE037864R0106 UFC911 B106, also cataloged as the UFC911B106 Voltage Measurement Board, provides voltage sensing and conditioning for AC and DC electrical signals in ABB drive control hardware.

Model Identification

The supplied documentation identifies the board as UFC911 B106 and provides the spare model UFC911B106. No verified manufacturer documentation was supplied that defines additional characters within the part number.

Hardware Specifications

ABB Drive Voltage Measurement

The UFC911 B106 is a voltage measurement circuit board intended to process electrical voltage signals associated with ABB drive hardware. The supplied data specifies typical AC and DC voltage ranges up to 400 V.

For integration, the measurement terminals and signal reference must be matched to the applicable ABB drive schematic. The board should not be assumed to provide galvanic isolation, signal scaling, or protection functions beyond those explicitly stated in the applicable hardware documentation.

Electrical Interface Considerations

• Use the specified 24 VDC supply arrangement where applicable.
• AC and DC measurement circuits must be connected according to the host drive wiring diagram.
• Maintain physical separation between measured-voltage conductors and low-level control or communication wiring.
• Do not connect an AC measurement input to a DC circuit, or vice versa, unless the application documentation explicitly permits it.
• Verify the voltage reference and polarity before energizing the board.
• The supplied information does not specify measurement accuracy, resolution, input impedance, isolation voltage, or response time.

Ordering Information

• 1 x ABB 3BHE037864R0106 UFC911 B106 Voltage Measurement Board
• 1 x Board identification corresponding to UFC911B106
• Additional mounting hardware, cables, connectors, or accessories are not specified in the supplied product data.

Installation and Wiring Notes

Power Connection

• Confirm the control supply voltage before energizing the board.
• Use wiring suitable for the applicable voltage level and installation environment.
• De-energize the associated drive before inserting, removing, or wiring the board unless the host system documentation explicitly permits live replacement.

Voltage Measurement Wiring

• Route high-voltage measurement conductors separately from low-level signal wiring.
• Keep conductor lengths and routing consistent with the host drive installation requirements.
• Verify terminal identification against the ABB circuit diagram before connection.
• Check for unintended voltage between the measurement circuit and protective earth before commissioning.

Environmental Conditions

• The specified operating range is -20 deg C to +60 deg C.
• Storage temperature is -40 deg C to +85 deg C.
• Relative humidity must remain within 5% to 95%, non-condensing.
• Prevent condensation during installation and startup.

Frequently Asked Questions

• What is the primary function of the UFC911 B106?

  It is a voltage measurement board for processing AC and DC voltage signals associated with ABB drive hardware.

• What is the typical control supply voltage?

  The supplied data identifies 24 VDC as the typical operating supply. The exact supply connection should be confirmed from the applicable ABB schematic.

• What voltage range is identified for AC measurement?

  The supplied specification identifies a typical AC measurement range of 0 to 400 VAC.

• What voltage range is identified for DC measurement?

  The supplied specification identifies a typical DC measurement range of 0 to 400 VDC.

• Does the available data specify measurement accuracy?

  No. Accuracy is not provided in the supplied information and should not be inferred without the applicable ABB technical documentation.

• Is the board specified as galvanically isolated?

  No verified isolation specification is provided. Galvanic isolation should not be assumed from the available product information.

• Can the board be installed while energized?

  Hot insertion is not established by the supplied data. The associated drive should normally be de-energized unless ABB documentation specifically permits live replacement.

• What environmental humidity range is specified?

  The stated relative humidity range is 5% to 95%, non-condensing. Condensation must be prevented during operation and storage transitions.