Description
Key Technical Specifications
| Parameter | Reported specification |
|---|---|
| Model | UMC552000-01 |
| Unit designation | MC-550 PAU |
| Product type | Power Amplifier Unit |
| Input voltage | 270–325 VDC |
| Output voltage | 0–230 VAC, three-phase |
| Rated apparent power | 4.6 kVA |
| Rated output current | 12 A |
| System association | Sumitomo System MX |
| Unit identification | UMC552000 ACG01 reported on one listing |
| Weight | Approximately 6.0 kg in one supplier record |
| Control interface | Not confirmed |
| Motor feedback interface | Not confirmed |
| Cooling arrangement | Not confirmed |
| Operating temperature | Not confirmed |
Specification note: These electrical ratings are supplier-reported rather than independently confirmed from an OEM technical manual. Confirm the DC bus range, output current, and motor compatibility using the original equipment documentation.
Product Introduction
The SHI Control Systems MC-550 PAU UMC552000-01 is a power amplifier unit associated with the Sumitomo System MX drive platform. Its role is to provide the power-conversion stage required by the motor-drive system, converting the DC bus supply into controlled three-phase AC output for the connected motor.
UMC552000-01
The System MX architecture is described in supplier documentation as integrating motor speed and current control with system-level axis control. This makes correct identification of the power amplifier particularly important during maintenance. The UMC552000-01 should be evaluated as part of the complete drive assembly rather than as an independent, universally compatible servo amplifier.
Application Scenarios and Field Pitfalls
Potential application areas
- Industrial motor-drive systems.
- Multi-axis machine control.
- Automated manufacturing equipment.
- Precision motion-control machinery.
- Legacy Sumitomo System MX installations.
Important replacement checks
- DC bus compatibility: Confirm the installed DC supply remains within the specified operating range.
- Motor matching: Check rated motor current, voltage, winding configuration, and feedback arrangement.
- Drive configuration: Verify compatibility with the associated System MX control unit.
- Power connections: Inspect DC input terminals, three-phase output terminals, and grounding connections.
- Cooling: Check the original cabinet ventilation and heat-dissipation arrangement.
- Protection circuits: Verify overcurrent, overvoltage, and thermal protection behavior after replacement.
- Commissioning: Perform controlled startup and motor testing before returning the machine to production.
A power amplifier with the same output rating is not automatically interchangeable. Differences in gate-drive design, current sensing, control electronics, and protection circuitry can prevent correct operation.
Related Products and Variants
| Model / designation | Identification |
|---|---|
| MC-550 PAU | Power Amplifier Unit designation associated with UMC552000-01 |
| UMC554000-01 | Different Sumitomo model; compatibility not established |
| UMC554000-07 | Different UMC-series designation; not confirmed as a substitute |
Do not approve an alternative based only on the shared UMC prefix or similar model numbering.
Procurement and Quality Control
For a replacement purchase, request:
- Photograph of the complete UMC552000-01 nameplate.
- Confirmation of the MC-550 PAU designation.
- Unit identification and hardware revision.
- DC input and three-phase output ratings.
- Connector and terminal photographs.
- Static inspection and power-stage condition report.
- Functional test results under an appropriate load.
- Confirmation of compatibility with the existing System MX controller.
Procurement recommendation: Specify both UMC552000-01 and MC-550 PAU in the purchase documentation. The strongest available identification is a Sumitomo System MX power amplifier unit manufactured under the SHI Control Systems designation.
