Mitsubishi Spindle Drive Unit MDS-B-SP-220

The Mitsubishi MDS-B-SP-220 is an AC spindle drive (controller) unit from the Mitsubishi MDS-B Series, controlling 22 kW class SJ spindle motors with IGBT IPM sinusoidal wave PWM vector control in CNC machine tools. Direct replacement for a faulty MDS-B-SP-220; the MDS-A-SP-220 is the equivalent unit of the MDS-A Series.

• Part number: MDS-B-SP-220
• Type: AC spindle drive unit, Mitsubishi MDS-B Series | Matched motors: SJ-22A, SJ-22AP and other 22 kW class SJ motors
• Main circuit: IGBT IPM sinusoidal wave PWM inverter
• Control: pulse generator speed feedback, digital closed-loop control, vector control
• Braking: power regenerative braking
• Speed control range: 35–4500 r/min | Speed fluctuation: max 0.2% of maximum speed
• Speed command: serial connection with Mitsubishi M500 / M60 Series CNC
• Related model: MDS-A-SP-220 (MDS-A Series, same capacity class) — listed separately
• Ambient: 0–55 °C / 90% RH or less | Noise: less than 55 dB(A)
• Condition options: New / Used / Refurbished — tested before dispatch