Description
The Yaskawa CIMR-M5D2018 is a high-performance AC spindle drive belonging to the legacy Varispeed-626M5 (VS-626M5) series. Unlike general-purpose industrial variable frequency drives, this model is a vector-controlled inverter specifically engineered for high-precision machine tool spindle applications.
Technical Specifications
| Parameter | Value |
| Manufacturer | Yaskawa Electric Corporation (Japan) |
| Product Series | Varispeed-626M5 (VS-626M5) Spindle Drive |
| Model Number | CIMR-M5D2018 |
| Rated Motor Output | 18.5 kW (approx. 25 HP) |
| Input Voltage Class | 200 V Class (DC Bus Input: 270 to 325 VDC, powered via a companion converter unit like the VS-656MR5) |
| Output Voltage | 3-Phase, 0 to 230 VAC |
| Control Method | Sine-wave PWM with High-Performance Vector Control |
| Speed Control Range | 40 rpm to maximum motor rated speed |
| Speed Regulation | \pm 0.2\% or less of maximum speed |
| Enclosure Type | Chassis-mounted open frame (IP00 / IP20 style, intended for electrical cabinet installation) |
| Approximate Weight | 12.25 kg (27 lbs) |
Supply Terms & Commercial Details
- Availability: Stock availability fluctuates due to the legacy status of the VS-626M5 product line; typically sourced via specialized surplus and industrial automation distributors.
- Lead Time: In-stock items typically ship within 3 to 5 business days.
- Warranty: 12-month standard replacement warranty covering functional hardware defects (verify specific terms with your supplier for surplus or refurbished tiers).
- Condition: New Surplus, Factory Open Box, or Fully Tested Refurbished (confirm exact packaging state and test reports upon inquiry).
- Pricing Note: Listed price is indicative, not final. Price subject to market conditions; contact us for a firm quote.
Engineering & Integration Guidance
When integrating or replacing the CIMR-M5D2018 drive within a CNC machine tool cabinet, observe the following technical parameters:
- Regenerative Converter Pairing: This inverter relies on a matching power regenerative converter unit (such as the Yaskawa VS-656MR5 series) to handle DC bus power routing and return braking energy back to the AC grid. Ensure proper DC bus bar connections between units.
- Vector Control Tuning: For optimal cutting performance and low-speed rigidity, make sure motor parameter auto-tuning and encoder feedback scaling (utilizing spindle pulse generators or serial encoders) match the physical machine tool spindle specifications.
- Cabinet Thermal Management: Because an 18.5 kW drive generates substantial thermal energy under continuous operation, ensure adequate vertical clearance and cabinet ventilation fans are functional to prevent thermal trip shutdowns.
- Wiring and Grounding: Terminate high-frequency motor and encoder shields securely to the internal cabinet grounding plate to prevent electrical noise interference from disrupting CNC control signals.
Frequently Asked Questions
What applications use the Yaskawa CIMR-M5D2018?
It is widely utilized as the main spindle drive in CNC machining centers, high-performance lathes, turning centers, and milling machines requiring rigorous torque and speed control.
Can this drive operate independently without a converter unit?
No. The VS-626M5 series drives are designed to work in tandem with a dedicated power supply/regenerative converter module (like the VS-656MR5) to supply the necessary DC bus voltage.
Is this unit still actively manufactured by Yaskawa?
No, the VS-626M5 series is a legacy product line. Replacement units are predominantly managed through specialized industrial surplus stock, professional electronic repair houses, or drop-in migration paths recommended by automation integrators.
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