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- 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 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
- Device category: Frequency converter / Inverter Unit
- Series/Class: MXN series, 200-V class
- Design: air-cooled, modular, service-friendly
Model designation
- CIMR = Control Inverter Motor Regulator
- MXN = MXN series (compatible with Siemens controls)
- 25P5 = Rated power 5.5 kW (200-V class)
Technical Data
| Feature | Value |
|---|
| Manufacturer | Yaskawa Electric Corporation |
| Series | MXN |
| Model | CIMR-MXN25P5 |
| Power | 5.5 kW |
| Supply voltage | 3AC 200–230 V ±10 %, 50/60 Hz |
| Input current | approx. 28 A |
| Output voltage | 3AC 0–230 V (PWM-controlled) |
| Output current | 24 A rated |
| Control method | V/f or vector control |
| Cooling | Forced ventilation (fan unit) |
| Protection class | IP20 |
| Weight / Dimensions | approx. 6 kg / 260 × 140 × 180 mm |
Connections & Interfaces
- L1, L2, L3: Mains connection 3-phase 200 V
- U, V, W: Motor outputs
- P, N: DC link
- B1, B2: Braking resistor
- CN1: Control and signal input (start, stop, frequency specification, error output)
- CN2: Communication interface / feedback to CNC
- LED display: Display of status and error codes (e.g. AL20)
- PE: Protective earth connection, central on the housing
Control board / Assemblies
| Type | Board designation | Quantity |
|---|
| Control board | SGDK-CAS011LA-V 0038 Rev.A0 or DF0300545-A0 | 1 |
| Communication board / Option Card | SGDK-CF01A-V Rev.B0 or DF0300130-B0 | 1 |
| Power board | YPCT31448-1B | 1 |
| Power section | Power section (completely assembled output stage with IGBT and drivers) | 1 |
Alarms & Troubleshooting
| Code | Designation | Typical finding | Check | Remedy |
|---|
| 01 | Power Supply Error | Mains voltage missing or too low | Measure mains phases | Check power supply |
| 03 | DC Bus Voltage Error | DC link voltage outside setpoint | Check DC voltage at P/N | Check mains or braking resistor |
| 04 | Motor Overcurrent | Short circuit/overcurrent in output phase | Insulation test U/V/W | Check motor cable, motor or IGBT |
| 05 | Inverter Overheat | Overheating of the power unit | Check fan and air flow | Replace fan, clean cooling |
| 06 | Overload | Permanent overload | Check running profile | Adjust duty cycle |
| 07 | Input Voltage Fault | Incorrect phase sequence or voltage | Check L1/L2/L3 | Correct wiring |
| 10 | Encoder Comm. Error | No signal / communication error | Check CN2 connector | Fix encoder or cable defect |
| 20 | Motor Overheat | Thermal sensor reports overheating | Check motor thermistor | Improve ventilation |
| 30 | Overvoltage | DC link voltage > 400 V | P/N measurement | Check mains voltage, test braking resistor |
| 32 | Overcurrent / Short Circuit | Short circuit in the output | Continuity test | Check motor or transistor stage |
| 33 | Regenerative Overload | Braking energy too high | Check temperature, load | Use external braking resistor |
| 50 | Fan Stop | Cooling fan stopped | Check supply | Replace fan |
| 88 | Watchdog | Control error or CPU standstill | Perform reset | Replace control board |
Typical applications
- STAR CNC lathes and milling machines (Siemens control)
- Automated machine tools with Yaskawa drive systems
- Conveyor technology, pump and fan control
- Machining centers with regulated spindle speed
Service notes
- Regular cleaning of fans and cooling fins
- Replace electrolytic capacitors and fans preventively every 5–7 years
- Before working: Switch off the device completely and discharge the DC bus (at least 5 minutes)
- Save parameters (backup via CN1/EEPROM)
- Do not perform insulation measurements (Megger) on the installed device
Repair description
- Input check: Visual inspection, measurement of the DC bus voltage, check for short circuit in the power section, analysis of the error message (e.g. AL20 = Motor Overcurrent).
- Disassembly & Cleaning: Removal of the boards and heat sinks, thorough cleaning, renewal of the thermal paste, checking the fan unit.
- Analysis: Checking control, communication and power board (SGDK-CAS011LA-V, SGDK-CF01A-V, YPCT31448-1B) for defective components, aged capacitors and solder joints.
- Repair: Replacement of defective assemblies, preventive replacement of critical components (electrolytic capacitors, fans, relays, gate drivers), rework of oxidized contacts.
- Testing & Load test: Test run on STAR test bench with Siemens-Yaskawa control, monitoring of current, temperature, DC link voltage and control behavior.
- Endurance test & Conclusion: Several hours of continuous operation under load, checking the alarm logic and thermal stability, creating a test report with measured values.