1. Product Introduction
CIMR-M5N2022 belongs to discontinued Yaskawa VARISPEED VS-626M5 exclusive CNC spindle inverter series, designed for digital bus connection with YASNAC / FANUC CNC systems via YENET1200 proprietary bus protocol. It needs matching MR5 series common rectifier unit to supply shared DC bus power, widely used for maintenance replacement of vintage Japanese machining centers, vertical milling and precision grinding machines; original production has been permanently discontinued by Yaskawa, only refurbished/second-hand stock available now.
2. Model Code Definition
CIMR: Standard Yaskawa inverter fixed prefix
M5: VS-626M5 dedicated spindle drive series for CNC machine tools
N: NC digital bus control type (equipped with YENET communication board ETC62611X for NC bus command, different from analog-controlled M5A version)
2: 200V DC bus voltage class
022: Rated matched spindle motor power 22kW
3. Electrical Specifications
Power input comes from external MR5 rectifier module, DC bus input range: DC270V~DC325V, no direct AC mains input.
Rated output capacity: 35kVA; rated continuous output current:72A
Matched three-phase spindle motor: 22kW, 200V class
Adjustable three-phase AC output voltage:0~230V
Max output frequency:0~600Hz for ultra-high-speed spindle machining
Overload capability: 150% rated current lasting 60s to bear heavy intermittent cutting load
Built-in dynamic brake chopper, supports external braking resistor wiring for rapid spindle stop
Full closed-loop vector control via CN1 encoder feedback port
Complete protection functions: overcurrent, overvoltage, undervoltage, overheat, output short-circuit, motor overload protection
4. Control Features
As N-type NC bus exclusive model, main speed and operation commands are transmitted digitally from CNC controller via YENET1200 bus instead of standard analog signals (0~10V/4~20mA). Analog voltage, current and multi-step speed terminal control are reserved as backup debugging mode. Closed-loop speed regulation precision ≤±0.1% of rated speed to guarantee high-precision cutting performance.
5. Installation & Ambient Conditions
Open-frame IP00 protection grade with built-in forced-air cooling fan, must be installed inside electrical control cabinet only.
Working ambient temperature:0℃~+50℃
Relative humidity:20%~80% without condensation
Max applicable installation altitude: below 1000 meters above sea level
6. Application Scope
Specialized for main spindle driving of old imported Japanese CNC machining centers, precision milling and surface grinding equipment, mainly used as spare replacement during equipment overhaul and retrofit.
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