S1 Servo motor Encoder UTOPH-81AWF
For your information
- We offer for this displayed device sale, exchange and repair services.
- Prices for Servo-/Spindle Motors are standard prices for standard repair (Repairprice from)
- Devices for sell or exchange, was preventively overhauled in our workshop.
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Detailed information about Yaskawa SGMG Sigma 1 Servo Motor series
We offer serial repairs for this product series
- Repair of many electronic assemblies according to standardized repair procedures with documentation.
- A larger repair capacity is possible for the same or similar orders
- Target group: machine manufacturers, service companies and distributors
Access to years of experience, specialists and equipment.
Find out more about our series repairs
Overview
The Yaskawa SGMG-09V2AB is an AC servomotor of the Sigma series, proven in continuous industrial operation and widely used in CNC machine tools and automation axes. It offers high starting torque, robust construction, and reliable control quality. The installed UTOPH encoder can easily be replaced by the newer UTOPH-81AiF, significantly improving availability and serviceability.
Overview
- Device category: AC Servomotor
- Series/Class: Sigma (V2 generation)
- Design: robust, service-friendly, high thermal stability
Model Designation
- SGMG = Sigma series AC servomotor
- 09 = Power/Torque class (~850 W)
- V2 = Series / Variation
- AB = Options, mechanical design, customized version
Technical Data
| Feature | Value |
|---|
| Power | 850 W |
| Rated Torque | 5.39 Nm |
| Rated Speed | 1500 min⁻¹ |
| Rated Current | 7.1 A |
| Voltage Class | 200 V |
| Insulation Class | F |
| Encoder | UTOPH-81AWF (Replacement: UTOPH-81AiF) |
| Weight / Dimensions | N/A |
Connections & Interfaces
- U/V/W: Motor power
- Encoder connection (UTOPH series)
- Protective earth PE: large-area low impedance
- Signal cable: shielded, routed separately from motor power
- Housing: massive fin cooling
Control Board / Components
- Rotor/Stator system
- Precision encoder UTOPH-81AWF / UTOPH-81AiF
- Connection box for power & feedback
- Front/rear bearing (suitable for industrial use)
- Housing with cooling fins (die-cast aluminum)
Alarms & Troubleshooting (SGDH Reference)
| Code | Description | Typical Finding | Check | Remedy |
|---|
| A.10 | Overcurrent | Short circuit, winding defective | Measure U/V/W | Check motor/drive |
| A.40 | Overvoltage | DC link overvoltage | Measure mains | Stabilize supply |
| A.41 | Undervoltage | Voltage too low | Check input | Stabilize mains |
| A.51 | Overspeed | Encoder error, incorrect phase sequence | Encoder, phase sequence | Check wiring/encoder |
| A.71 | Overload High | Short-term overload | Current profile | Reduce load |
| A.72 | Overload Low | Continuous thermal overload | Check temperature | Check mechanics |
| A.81 | Encoder Backup Error | Absolute data lost | Battery/Encoder | Initialize |
| A.82 | Encoder Checksum Error | Memory error | Encoder diagnosis | Replace encoder |
| A.84 | Encoder Data Error | Data not plausible | Line/Connector | Replace cable/encoder |
| A.C9 | Encoder Communication Error | Signal failure | Shielding/Cable | Replace cable |
Typical Applications
- CNC milling machines, lathes
- Automation and handling axes
- Precision positioning systems
- Axes with high repeatability
Service Notes
- Route encoder cable separately from motor cable
- No insulation measurement when installed
- Regularly check bearings and runout
- Keep cooling fins clean
- Compatible replacement encoder: UTOPH-81AiF
Repair Description
- Input check: Visual inspection, winding resistance, insulation measurement, encoder diagnosis
- Disassembly & Cleaning: Opening, thorough internal and external cleaning, removal of oil/emulsion
- Analysis: Checking bearings, windings, encoder function, temperature sensor
- Repair: Replacement of bearings, seals, connectors; Replacement of the encoder (UTOPH-81AiF)
- Testing & Load Test: Test run, temperature monitoring, current consumption, feedback signal
- Long-term test & Completion: Continuous run under load, documentation of all measured values, final release
We Verify Your Drives and Electronic Components for Authenticity
Authenticity Check for Drives & Electronic Components: Confidence Before You Invest
Prevent failures caused by hidden counterfeits.
With our professional authenticity verification, you ensure
that your drives and system components truly meet original manufacturer quality before being installed in critical processes.
Why Authenticity Check Is Essential Today
The market for industrial drives, motors, and control components is globally interconnected. Components are traded through various channels, new, used, refurbished, or from warehouse stock.
As shown in our article Solutions Against Counterfeit Drive Components, products with unclear origin or altered substance repeatedly enter industrial supply chains.
For buyers, it is often not clearly recognizable:
- Whether it is an original product from the manufacturer
- Whether the device has been opened or technically modified
- Whether serial numbers and nameplates are authentic
- Whether all components correspond to the original condition
Especially in production-critical systems, unverified components can lead to downtime or consequential damage.
Professional authenticity verification provides clarity before the component is installed or resold.
What Exactly Is Checked During Authenticity Check?
Inspection of Nameplate and Serial Number
We compare serial numbers, production markings, and device designations with our technical reference data and manufacturer standards, checking them for plausibility and irregularities.
Visual and Mechanical Inspection
Our technicians professionally open the device and examine housing, screws, seals, connectors, and internal assemblies for signs of manipulation, replacement traces, or deviations from the original condition.
Electrical Measurements and Functional Testing
We test power and control units on our test benches under realistic conditions and verify whether the technical parameters comply with manufacturer specifications.
Software and Parameter Analysis
By reading firmware versions, parameters, and internal device data, we identify modifications, non-original configurations, or inconsistent software versions.
Comprehensive Technical Evaluation
Based on all inspections, we prepare a well-founded overall assessment, transparently document the device condition, and provide you with a clear recommendation for further use, repair, or replacement.
Who Our Authenticity Check Is the Right Choice For
Maintenance Personnel and Technicians
Safety before installation: verification of drives and motors to prevent unplanned downtime.
Purchasing and Procurement
Protection against incorrect purchases through technical inspection of serial numbers, condition, and authenticity.
Quality Management
Documented test results for internal quality assurance and audit purposes.
Machine and Plant Manufacturers
Reliable verification of components to safeguard customer projects and contractual commitments.
Distributors and Resellers
Transparent evaluation of device condition to enable trustworthy resale.
Learn More About Manipulation and Counterfeit Electronic Components in Our Blogs
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