The ABB DSMB-01C 64691929R, also cataloged as the DSMB-01C Power Supply Board, operates as a dedicated hardware component for internal voltage regulation and power distribution within Advant OCS/800xA drive configurations.

Hardware Identification & Part Number Mapping

The DSMB-01C 64691929R designation specifies distinct physical and functional properties across ABB control platforms:

• DSMB-01C: Indicates the functional circuit board architecture for power supply transformation.
• 64691929R: Specifies the exact manufacturing part number revision code.
• Advant OCS/800xA: Defines compatibility with ABB distributed control and inverter drive systems.
• ACS800DSUV3 Kit: Identifies the primary inverter drive unit assembly integration.

Technical Performance Parameters

Backplane Communication Velocity & Deterministic Networks

The DSMB-01C 64691929R interfaces with internal drive system electronics to support high-speed backplane bus communication velocity across control boards. Firmware flash compatibility maintains deterministic execution cycle parameters during input supply fluctuations. This board maintains isolated internal bus logic power levels, suppressing voltage ripple across connected Profinet or EtherNet/IP communication adapters inside drive control assemblies.

Package Component List

• 1 x ABB DSMB-01C 64691929R Printed Circuit Board Power Assembly

Mounting and Grounding Installation Directives

• Secure the circuit board to structural metal or plastic standoff mounts using three original mounting screws.
• Ground the module directly to the protective earth (PE) busbar to minimize high-frequency electromagnetic interference.
• Attach regulated 24 VDC cables in strict alignment with system terminal wiring schematics.
• Install ferrite cores onto input wires and anchor all cabling with cable ties to prevent contact with adjacent heat sinks.

Technical FAQ

• Q: What is the nominal operating input voltage requirement for this power supply board?

  A: The module accepts a regulated 24 VDC input supply, providing localized output power for internal drive processing electronics.

• Q: What is the power output rating for the DSMB-01C 64691929R assembly?

  A: The board delivers a total rated power output of 60 W with an operational conversion efficiency of at least 85 percent at 24 V input.

• Q: What is the minimum hold-up time provided by the board under load?

  A: The circuit design maintains a hold-up time of >= 20 ms at 25 A during temporary primary voltage interruptions.

• Q: How must the board be grounded inside the drive chassis?

  A: Connect the board directly to the protective earth (PE) busbar using conductive mounting points to mitigate electromagnetic noise.

• Q: Is hot-swapping supported for this board inside live ACS800 drive assemblies?

  A: No, primary system power must be disconnected and DC bus capacitors fully discharged prior to board removal or installation.

• Q: What storage ambient temperature limits apply to this hardware unit?

  A: Non-operating storage ambient temperatures must be maintained strictly between -25 deg C and +70 deg C in non-condensing environments.

• Q: What physical fastener count is required to secure the board chassis?

  A: The circuit board requires three original mounting screws torqued to specified mechanical limits onto structural standoff supports.

• Q: What cable management steps must be taken during field assembly?

  A: Secure all power cables with cable ties and fit ferrite rings to prevent mechanical abrasion or thermal contact with heat sinks.