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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.
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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 CIMR-M5A27P5 is a powerful inverter of the M5A series. It is used to convert the DC link voltage into a precisely controlled three-phase output voltage for spindle or servo motors. With its proven design and high reliability, it is particularly suitable for use in CNC machines, milling and turning centers and other high-performance applications.
Overview
- Device category/role: Inverter Unit (Inverter for spindle or servo drive)
- Series/Class: M5A series, 200-V class
- Design: Compact, forced-air cooled, easy to maintain
Model designation
- CIMR = Converter Inverter Module, Yaskawa designation
- M5A = M5A series (Varispeed M5)
- 27P5 = 7.5 kW class (power size)
- XXXC = Variant identifier (interface or option version)
Technical Data
| Feature | Value |
|---|
| Input voltage | DC 270–325 V |
| Input power | 9.3 kW |
| Output voltage | AC 3-phase 0–230 V |
| Output power | 8.8 kVA |
| Output current | n/a |
| Frequency range | 0–400 Hz |
| Cooling | Forced air cooling |
| Weight | 6 kg |
| Manufacturer | Yaskawa Electric Corporation – Made in Japan |
| Software version | PRG: 0121 |
| Serial number | Example: N1P0786-2-020/V0202 |
Connections & Interfaces
- DC+ / DC-: Input from the DC link (270–325 V DC)
- U/V/W: Motor outputs (AC 3-phase, 0–230 V)
- CN1 / CN2: Control and feedback interfaces
- PE: Protective earth, connect with low impedance and large area
- Fan connection: integrated fan, controlled via internal thermal protection circuit
- Display: LED status indicators and diagnostic interface
Control board / assemblies
| Type | Designation on board | Model designation | Quantity |
|---|
| Control board | 1PCB | YPHT31147-1x | 1 |
| Power board | 2PCB | YPCT21138-1B | 1 |
| Communication board | 3PCB | YPHT31150-xC | 1 |
| Power section | – | Power section 7.5K | 1 |
Alarms & Troubleshooting
| Code | Designation | Typical finding | Check | Remedy |
|---|
| 2 | EEPROM/Flash Error | Parameter or memory data corrupted | Perform reset | Rewrite EEPROM |
| 3 | Main Circuit Error | Current measurement in the DC link faulty | Check DC link | Check control/power board |
| 4 | Parameter Error | Invalid or inadmissible parameters | Check software | Reload parameters |
| 16 | Overcurrent (Short Circuit) | Short circuit at U/V/W or defective IPM | Perform insulation test | Replace line/module |
| 17 | Earth fault | Short circuit to PE | Measure insulation | Replace faulty line |
| 33 | Overvoltage | DC > 325 V | Measure DC voltage | Check supply |
| 41 | Undervoltage | DC < 270 V | Check mains supply | Stabilize supply |
| 45 | Fan Stop | Fan failure or blocked | Visual inspection | Replace fan |
| 46 | Overheat | Heat sink overtemperature > 80 °C | Measure temperature | Improve fan or cooling |
| 50 | Overload | Long-term overload | Check motor current | Reduce load |
| 64 | DC Overvoltage | DC link excessive | Check measurement | Reduce voltage |
| 65 | DC Undervoltage | Voltage drop in the DC circuit | Measure supply | Check mains supply |
| 81 | Overspeed | Motor above target speed | Check feedback | Adjust parameters |
| 88 | Watchdog | CPU/communication error | Perform reset | Check/replace control board |
Typical applications
- CNC turning and milling centers
- Spindle drives in machine tools
- Servo/motor control with DC link
- High-precision manufacturing with variable speed
Service notes
- Clean fan regularly and check bearings
- Replace capacitors preventively every 8–10 years
- Check power modules (IPM) and solder joints
- Do not perform insulation measurement when installed
- Back up parameters and software version
- Perform grounding over a large area and with low impedance
Repair description
- Input check: Visual inspection, measurement of DC voltage, check for short circuit or insulation faults
- Disassembly & Cleaning: Removal and thorough cleaning of the assemblies, replacement of the thermal paste, fan check
- Analysis: Measurement of the power board (IPM, diodes, drivers), checking the control board and the communication interfaces
- Repair: Replacement of defective components (power module, control board, fan), re-soldering of thermally stressed points
- Testing & Load Test: Test run with load motor, monitoring of temperature, current, voltage and alarm behavior
- Endurance test & completion: Continuous operation for several hours, measurement protocol and release for reinstallation