Drive Amplifier
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 SGDB 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
The Yaskawa SGDB-03VNY1 is an industrial AC servo amplifier of the Σ series (SGDB series). The VNY1 variant combines a 200 V supply ("V"), a MECHATROLINK bus interface ("N"), and an additional function option ("Y1"). With an output power of 0.3 kW, the amplifier is ideally suited for compact CNC axes, precise positioning tasks, handling modules, and automated manufacturing systems.
Overview
- Device category: AC Servo Amplifier
- Series: SGDB (Σ Series)
- Design: robust, convection-cooled unit
Model Designation
- (according to SGDB model code table)
- SGDB – Σ Series Servopack
- 03 – Power size 0.3 kW (0.4 HP)
- V – Supply 200 V (Region/Variant identification)
- N – Command Interface Type MECHATROLINK
- Y1 – additional factory option / special function (e.g., firmware adjustment / individual option – varies depending on the production series)
Technical Data
| Feature | Value |
|---|
| Input voltage | 3~ 200–230 V AC |
| Mains frequency | 50/60 Hz |
| Input current | 5.0 A |
| Output voltage | 0–230 V AC |
| Output current | 3.0 A |
| Output power | 0.3 kW (0.4 HP) |
| Phases | 3 |
| Communication interface | MECHATROLINK (N-Type) |
| Cooling | Convection cooling |
| Protection class | IP1X |
| Weight/Dimensions | n. a. |
Connections & Interfaces
- L1 / L2 / L3 – AC Mains Input 200–230 V
- U / V / W – Motor output to 0.3 kW class Sigma motors
- CN1 – Control signals (Inputs/Outputs, Enable, Alarms, Reference)
- CN2 – Encoder connection (Incremental encoder)
- MECHATROLINK Port (N-Interface) – digital communication with the CNC/Controller
- BR+ / BR– – Brake resistor connection
- PE – Grounding point
- LED/7-Segment Display – Diagnostics and error messages
Control Board / Assemblies
| Type | Designation on Board | Quantity | Note |
|---|
| Control Board | SGDB-CAN(VY1) – depending on revision | 1 | Contains MECHATROLINK interface, controller, optocouplers |
| Power Section | n. a. | 1 | Power output stage with IGBT, rectifier, driver |
Alarms & Troubleshooting
| Code | Designation | Typical Finding | Check | Remedy |
|---|
| A.10 | Overcurrent / Overheating | Short circuit U/V/W, IGBT error | Isolation, IGBT test | Repair power section |
| A.30 | Regeneration Error | RB open / defective | Check RB resistor | Connect/replace RB |
| A.32 | Regeneration Overload | RB too small, many stops | Check Reg energy | Dimension RB larger |
| A.40 | Overvoltage | Mains > 230 V | Measure input voltage | Stabilize supply |
| A.41 | Undervoltage | Voltage dip | Test mains load | Check power feed |
| A.51 | Overspeed | Encoder/Phase error | Phase sequence & Encoder | Correct wiring |
| A.71 | Short-term Overload | Shock load, blockage | Check mechanics | Reduce load |
| A.72 | Continuous Overload | Axis profile too aggressive | Temperature/Current | Soften profile |
| A.81 | Encoder Backup Error | Absolute data lost | Battery/Cable | Replace battery |
| A.84 | Encoder Data Error | Encoder damaged | Signal analysis | Replace encoder |
| A.b3 | Current Detection Error | Sensor error | Check current sensor | Repair board |
Typical Applications
- Compact CNC axes (X/Y/Z)
- Handling and Pick & Place modules
- Assembly and testing automation
- Transport and feeding systems
- Axes with digital MECHATROLINK connectivity
Service Notes
- Keep ventilation slots clean
- Regularly check power section and electrolytic capacitors
- Terminate MECHATROLINK cabling correctly
- Ensure low-resistance grounding and proper shielding
- Back up parameters & bus configuration
- Never check encoder and control lines with a Megger
Repair Description
- Initial inspection: Visual check, insulation measurement, DC bus measurement, MECHATROLINK test
- Disassembly & Cleaning: Open housing, remove dust/oil, replace thermal pads
- Analysis: Check control board (CANV/Variant), optocouplers, intermediate voltage, driver stages, IGBT module
- Repair: Replacement of defective transistors, driver ICs, capacitors, resoldering critical areas
- Function test: Test run with 0.3 kW motor, monitoring of current, temperature, regeneration, communication
- Long-term test: Several hours of continuous operation under load & documentation of all measured values
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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Why we are telling this story?
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