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 CACR 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 Servopack DR2-04AC belongs to the long-established DR2 series for compact, high-performance AC servo drives. These devices have always been designed for reliable axis movements in machine tools, handling units, and automation systems. The robust metal construction, combined with IP2X protection, ensures a long service life in continuous industrial operation.
Overview
- Device category: AC Servo Amplifier
- Series/Class: DR2 Series, 200 V Class
- Design: compact, air-cooled, service-friendly
Model Designation
- DR = Drive Regulator / Servopack
- 2 = DR2 Series
- 04 = Power size approx. 0.4 kW
- AC = AC Input & AC Output
Technical Data
| Feature | Value |
|---|
| AC Input Voltage | 200–230 V |
| Frequency | 50/60 Hz |
| Input Phase | 1-Phase |
| Input Current | 5.1 A |
| AC Output Voltage | 0–230 V |
| Output Phase | 3-Phase |
| Output Current | 2.6 A |
| Output Power | 0.4 kW (0.54 HP) |
| Protection Class | IP2X |
| Cooling | natural convection |
| Weight/Dimensions | n. a. |
Connections & Interfaces
- L1 / L2: Supply 200–230 V AC
- U / V / W: 3-Phase Motor Output
- Control Interfaces: Enable, ALM, possibly analog/digital depending on machine
- Feedback/Encoder: depends on the motor used
- PE/Grounding: low-impedance, large-area connection
Control Board / Modules
- Power section (transistor output stage)
- Controller board for current and speed control
- Protection circuits: overcurrent, overtemperature, overvoltage
- Internal diagnosis and fault evaluation
Alarms & Troubleshooting
| Code | Description | Typical Finding | Check | Remedy |
|---|
| A.10 | Overcurrent | Short circuit on U/V/W, defective output stage | Measure motor cable | Check/replace power section |
| A.30 | Regenerative Error | Regenerative power too high | Check RB connection | Reduce load, connect RB correctly |
| A.31 | Overspeed | Speed too high, encoder problem | Check feedback | Adjust parameters |
| A.40 | Overvoltage | DC bus > setpoint | Check input voltage | Stabilize mains |
| A.41 | Undervoltage | DC bus too low | Measure supply | Check power supply |
| A.32 | Overcurrent Protect | IGBT/IPM damage | Disconnect U/V/W, switch on again | Replace Servopack |
| A.51 | Motor Overspeed | Inconsistent encoder values | Test encoder | Replace encoder/cable |
| A.71 | Overload High | severe mechanical overload | Check current profile | Check mechanics/load |
| A.72 | Overload Low | continuous overload | Check duty cycle | Reduce load |
| A.81 | Encoder Backup Error | Absolute value loss | Check battery/encoder | Replace battery/encoder |
Typical Applications
- Machine tools (small axis drives)
- Mounting and pick-and-place systems
- Packaging and feeding systems
- Small and medium automation axes
Service Notes
- Regular cleaning of ventilation openings
- Check motor cable for insulation and kinks
- Back up parameters before every service operation
- Do not perform insulation measurement with Megger on the installed device
- Observe ambient temperature and control cabinet installation
Repair Description
- Input check: Visual inspection, odor check, mains voltage measurement, U/V/W short circuit test
- Disassembly & Cleaning: Removal of dust, oil, chips, careful opening and cleaning of the boards
- Analysis: Diagnosis of power transistors, driver stages, sensor technology, and control loops
- Repair: Replacement of defective power components, reworking thermally stressed solder joints
- Testing & Load Test: Test with reference motor, monitoring of current, feedback, temperature
- Long-term Test & Conclusion: several hours of operation under load, final protocol for quality assurance
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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