1. Product Introduction
CIMR-M5N2030 belongs to discontinued Yaskawa VARISPEED VS-626M5 dedicated CNC spindle drive lineup, specially configured with built-in YENET1200 digital communication board for direct bus linkage with YASNAC and FANUC CNC controllers. It requires matching MR5N series shared rectifier unit for centralized DC bus power supply instead of independent AC mains input. Original Japanese production has been fully terminated by Yaskawa; only used/refurbished replacement stock is available for overhaul of vintage Japanese machining centers, heavy-duty milling and precision grinding machines.
2. Model Code Definition
CIMR: Standard fixed prefix of Yaskawa inverter product coding
M5: VS-626M5 exclusive CNC spindle control series
N: NC digital bus communication version (YENET bus control, differs from analog-controlled M5A type)
2: 200V DC bus voltage grade
030: Rated matched spindle motor power 30kW
3. Electrical Specifications
Power input from paired MR5 rectifier module, DC bus input range: DC270V ~ DC325V
Rated output capacity: 46kVA; rated continuous output current:95A
Matching three-phase spindle motor rating:30kW, 200V class
Adjustable three-phase AC output voltage:0~230V
Max adjustable output frequency:0~600Hz for high-speed precision spindle machining
Overload tolerance:150% rated output current for continuous 60s to sustain heavy intermittent cutting loads
Pre-installed internal brake chopper, compatible with external dynamic braking resistor for rapid spindle braking stop
CN1 encoder feedback interface supports full closed-loop vector speed regulation
Comprehensive protection functions: overcurrent, overvoltage, undervoltage, drive overheat, output short-circuit and motor overload protection
4. Control Characteristics
As dedicated N-type NC bus drive, core running instructions and speed setpoints are transmitted digitally via proprietary YENET1200 bus from CNC numerical control system rather than conventional 0~10V analog control signals. Analog voltage, current and multi-step fixed-speed terminal control are retained as backup debugging mode. Closed-loop speed control accuracy is ≤±0.1% of rated spindle speed to guarantee stable precision cutting performance.
5. Installation & Ambient Technical Data
Open-frame IP00 construction with built-in forced-air cooling fan, mandatory cabinet-mounted installation only
Operating ambient temperature:0℃ ~ +50℃
Relative ambient humidity:20%~80%, non-condensing environment required
Max allowable installation altitude:≤1000 meters above sea level
6. Application Scope
Mainly used as spindle drive replacement for aging imported Japanese heavy-duty CNC machining centers, vertical milling machines and precision surface grinders; widely adopted in equipment maintenance and retrofit projects for old domestic and imported machine tools.
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