CONVERTER HITACHI RAMDA
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.
Learn more about...
Detailed information about Yaskawa Varispeed VS-626M5 device series
For improving quality, we have several test stands for Yaskawa Drives.
Our current brochure about Industrypart GmbH can be found in the download area.
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 converter unit of the Yaskawa MR5 series. It converts three-phase mains voltage into a stable DC link voltage and thus supplies servo amplifiers or spindle drives. Ideal for demanding machine and plant controls with high availability and serviceability.
- Device category/role: Converter Unit
- Series/Class: MR5-Varispeed family (200 V class)
- Design: compact, robust, with forced ventilation and service-friendly layout
Model designation
- CIMR = Converter Inverter Module, Yaskawa terminology
- MR5 = Series MR5 (Varispeed-626MR5 family)
- N = Letter code for power supply/converter unit (power supply module)
- 2018 = Performance/type code (here: approx. 22.9 kW rated output power)
Technical Data
| Feature | Value |
|---|
| Supply | 3-Phase 200 – 230 V AC, 50/60 Hz |
| Input power | 30 kVA at full load |
| DC link voltage (input) | 270 – 325 V DC |
| Rated output power | 22.9 kW |
| Output current | n/a |
| Cooling | Forced ventilation (ambient air cooling) |
| Weight/Dimension | approx. 12 kg (standard version) |
Connections & Interfaces
- Mains connection L1/L2/L3 200–230 V AC
- DC link DC output to subsequent servo amplifiers
- Control/signal connections of the control board (1PCB)
- Heat sink connections, fan supply
- Grounding (PE) connect over a large area
- LED/display for error/status indication
- Note: Route all cables neatly, observe cable cross-sections according to the type plate
Control board / Assemblies
- Control board: 1PCB – Type YPHT31149-xD
- Power board: 2PCB – Type YPCT31244-1B / ETC626095
- Power unit: Integrated IGBT module (main switching stage)
Alarms & Troubleshooting
| Code | Bezeichnung | Typischer Befund | Prüfung | Abhilfe |
|---|
| 01 | Overcurrent | Output current exceeded permissible limit | Check wiring, input voltage, load | Reduce load, replace defective components |
| 04 | Main fuse tripped | Main power circuit fuse blown | Check for short circuit or earth fault | Replace fuse, eliminate the cause of the fault |
| 05 | Overload | Continuous current limit exceeded | Check load profile and capacity | Reduce load, check system dimensioning |
| 11 | Output overvoltage | DC link voltage above limit | Check input voltage and load | Identify causes of voltage spikes |
| 12 | Main circuit undervoltage | DC link voltage below limit | Check mains voltage | Improve mains quality, check connection |
| 13 | Control circuit undervoltage | Control board supply voltage too low | Check control power supply | Fix problem with control board |
| 14 | Servo supply faulty | Voltage to the servo amplifier unstable | Check supply and wiring | Optimize connection |
| 15 | Mains frequency error | Frequency deviation greater than ±5 % (50/60Hz) | Check mains frequency | Ensure mains quality |
| 16 | Charging error (Initial charging fault) | Main capacitor was not charged | Check capacitor | Replace device or swap module |
| 17 | Mains phase interruption | Phase missing in the mains connection | Check mains connection | Correct connection |
| 23 | Contactor fault | Internal contactor has not switched | Check mechanics | Replace device |
| 43 | Heat sink overheated 1 | Temperature exceeded warning threshold | Check ambient temperature, cooling | Improve cooling |
| 44 | Heat sink overheated 2 | Over temperature for more than 1 minute | Check cooling performance | Optimize fan, cooling path |
| 45 | Thermistor disconnected | Temperature sensor on the heat sink interrupted | Check sensor | Replace sensor |
| 46 | Control board too hot (1) | Temperature control board over 80 °C | Check cooling | Improve cooling, check board |
| 47 | Control board too hot (2) | Temperature over 85 °C | Check cooling path | Act immediately, possible board repair |
Typical applications
- CNC machining centers
- Turning and milling machines with spindle and axis drives
- Automated production lines
- Retrofit projects with durable, proven technology
Service notes
- Regularly check fans and heat sinks for dust, oil and blockages
- Preventively replace capacitors and components with high thermal stress after about 8–10 years
- Back up parameters and firmware (software version 0021)
- Carry out grounding consistently and with low resistance
- Do not perform insulation measurement (Megger) on the installed device
- Check ambient temperature and air inlet conditions
Repair description
- Input check: Visual inspection for mechanical damage, blockage of ventilation, measurement of input voltage, check for short circuit or earth fault in the power section
- Disassembly & cleaning: Removal of the device, thorough cleaning of heat sinks, fans, circuit boards and air paths; renewal of the thermal paste
- Analysis: Checking the control board and power board for damaged solder joints, loose components, aged capacitors; Checking the DC link for voltage, ripple and short circuit; Simulation of load conditions on the test bench
- Repair: Replacement of defective IGBT/IPM modules, capacitors, control/circuit board components, fan and heat sink parts; Repair of solder joints, cleaning of connectors, if necessary firmware update
- Testing & load test: Functional test with connected servo amplifiers under load; Monitoring of DC link voltage, output current, temperature and alarm indication; Release with target parameters
- Endurance test & completion: Continuous operation under real load, logging of all measured values (current, voltage, temperature, alarms); final documentation and marking for reinstallation
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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Why we are telling this story?
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