For your information
- We offer for this displayed device sale, exchange and repair services.
- Prices for Servo-/Spindle Drives Power Supplies are standard prices for standard repair
- Devices for sell or exchange, was preventively overhauled in our workshop.
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Detailed information about Yaskawa SGDV Sigma V Servopacks
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
- Proven servo amplifier of the Yaskawa Sigma-V series for precise axis movements in industrial CNC applications. The device stands for robust power electronics, stable control, and high reliability in continuous operation. Developed for demanding use in modern production environments.
- Device category/Role: Servo Amplifier (AC Servo Drive / Servopack)
- Series/Class: Yaskawa Sigma-V, 200-V class
- Design: Compact, forced-air cooled, service-friendly
Model Designation
- SGDV = Yaskawa Sigma-V Servopack
- 120 = Power size (1.5 kW class)
- A01 = Standard version for axis applications
- A = 200-V input class
- Y = Version for AC servo motors
- 101AA = Revision and equipment identifier
Technical Data
| Feature | Value |
|---|
| Supply (Main circuit) | 1~ AC 200–230 V, 50/60 Hz, 16 A |
| Control circuit supply | 1~ AC 200–230 V, 50/60 Hz, 0.25 A |
| Output | 3~ AC 0–230 V, 0–400 Hz |
| Output current (Rated) | 11.6 A |
| Output power | 1.5 kW |
| Protection class | IP10 |
| Ambient temperature | 0–55 °C |
| Weight/Dimensions | n. a. |
Connections & Interfaces
- L / N: Main power circuit connection
- U / V / W: Motor outputs to the servo motor
- CN1: Control and I/O interface (Enable, Alarms, Signals)
- CN2: Encoder/Feedback connection
- B1 / B2: Brake resistor connection (internal/external, depending on configuration)
- PE: Protective earth, connect large area and low resistance
- 7-Segment/LED display: Status and alarm codes
Control Board / Assemblies
- Control and regulation board (Sigma-V Control Board)
- Power unit with IGBT power module
- DC link capacitors
- Current measurement and protection circuits
- Fan unit for forced cooling
Alarms & Troubleshooting
| Code | Description | Typical Finding | Check | Remedy |
|---|
| A.710 | Abnormal Motor Current | Asymmetrical phase current | Measure phase currents | Check and repair power section |
| A.910 | Servo Anomaly | Unstable control | Analyze control behavior | Repair power stage |
| A.020 | Overcurrent | Short circuit or defect | Insulation and short circuit test | Repair current path |
| A.330 | Control Error | Set-point/Actual deviation | Check feedback and parameters | Optimize control loop |
| A.410 | Encoder Error | Invalid feedback signal | Check encoder, cable, connector | Repair encoder circuit |
| A.510 | Overload | Sustained high current | Check mechanics and load | Reduce load, check electronics |
| A.720 | Phase Error | Missing phase | Check U/V/W | Repair power section |
| A.730 | Motor Instability | Asymmetrical output currents | Analyze current profile | Repair power section |
| A.840 | Hardware Anomaly | Internal assembly disturbed | Assembly check | Replace defective assembly |
| A.900 | System Error | Secondary fault due to power failure | Analyze root cause | Fix primary fault |
Typical Applications
- CNC machining centers
- Machine tools with feed axes
- Automation systems and handling axes
- Production facilities requiring high positioning accuracy
Service Notes
- Regularly clean fans and cooling channels
- Proactively check DC link capacitors
- Back up parameters and motor data before service
- Check encoder and power cables for tight fit
- Do not perform insulation measurement (Megger) on the installed device
Repair Description
- Input Check: Visual inspection, measurement of DC link voltage, checking phase currents
- Disassembly & Cleaning: Professional removal, thorough cleaning of boards and heat sinks
- Analysis: Checking the IGBT power section, current measurement, control board, and capacitors
- Repair: Replacement of defective power and control assemblies, preventive replacement of critical components
- Testing & Load Test: Functional test on the test bench with reference servo motor, monitoring current, temperature, and control behavior
- Long-term Test & Conclusion: Continuous operation under load, documentation of all measured values, and creation of a final report
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
Safety for your CNC and drive technology:
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Initial situation and fault description.
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A customer purchased what he thought were genuine XtraDrive XD-01-MSD0 drives from an Asian seller. The price was high, the trust was strong, and the units looked authentic.
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Why we are telling this story?
We regularly purchase servo drives as replacements for our industrial customers fast, reliable, documented. At the end of August 2025, a customer urgently needed a Yaskawa SGMSH‑30DCA6F‑OY. What initially looked l...