Features:
- PSM-55 power supply position in the FANUC alpha system
- 200 VAC input, power-regeneration configuration
- Shared power path for servo and spindle amplifier modules
A06B-6087-H155 identifies the PSM-55 unit that receives incoming machine power and supports the connected alpha-series amplifier group.
The module works with the input circuit breaker, magnetic contactor and AC reactor rather than operating as an isolated bench power supply.
Its regenerative architecture handles energy returned by the motor system while maintaining the common power path used by the adjacent servo and spindle amplifiers.
The FANUC A06B-6087-H155 PSM-55 Power Supply Module is listed as Active / Available from OEM. Apter Power can assist with A06B-6087-H155 purchasing enquiries and access to the available FANUC manufacturer documentation.
FANUC A06B-6087-H155 PSM-55 Power Supply Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Position of A06B-6087-H155 in the Alpha Drive Group
- Power-supply role: The PSM-55 provides the common DC link used by the connected spindle and servo amplifier modules.
- Group architecture: FANUC documents the power supply module together with SPM and SVM units as one modular drive system.
- System boundary: The installation also depends on the specified AC reactor, protective devices, connectors, and associated wiring.
- Replacement impact: A fault or mismatch at the power-supply module can affect the full amplifier group, so downstream units should not be assessed in isolation.
Energy Flow Through the PSM-55
- Incoming supply: The module accepts the documented 200 VAC class input through the required upstream equipment.
- Common DC link: It establishes the 300 VDC link shared with the spindle and servo amplifier modules.
- Regenerative operation: Returning motor energy is handled by the power-regeneration architecture rather than by an isolated axis supply.
- Troubleshooting scope: Isolate the common power path and connected amplifier group before assigning a link-voltage problem to one downstream module.
Required Equipment Ahead of A06B-6087-H155
- Circuit protection: FANUC specifies circuit breakers in the incoming power path for the amplifier system.
- Controlled isolation: A magnetic contactor is required so the drive group can be disconnected under the documented control conditions.
- Line interface: The specified AC reactor forms part of the input arrangement and should be matched to the amplifier configuration.
- Surge control: Install the documented surge suppressor between the power lines and ground at the power-magnetics cabinet input.
Matching the Complete PSM-55 Assembly
- Order identity: A06B-6087-H155 is the complete PSM-55 order specification used for replacement matching.
- Unit marking: The maintenance table associates the #BM unit designation with this PSM-55 specification.
- Board-level identity: A06B-6087-C155 and the listed PCB, driver-board, and connector-board numbers identify internal assemblies, not substitutes for the complete module.
- Quote and repair check: Record both the full module label and any board markings so a board-level repair item is not ordered in place of the complete PSM.