Product Description:

The MIV06DB-1-B3 is an Okuma inverter unit within the MIV Servo Drives series. It interfaces with a CNC controller to modulate the DC bus for brushless and synchronous spindle motors on automated machine tools. By converting the shared DC link into controlled AC output, it furnishes dynamic torque, speed, and positioning commands required for lathes, machining centers, and ancillary axes. The unit is intended for machine platforms that rely on coordinated servo behavior rather than simple fixed-speed operation.

Operational parameters revolve around a 1-axis architecture, meaning the unit manages a single motor channel without internal multiplexing. The power section is tied to a shared link at 300 VDC, so the installation must provide adequate bus capacitors and voltage protection. Control electronics draw only 24 VDC, allowing the CNC cabinet’s low-voltage rail to keep logic active during main power interruptions for status retention. On the output side, the inverter can deliver 6.0 kW, which is equivalent to 8 hp and suitable for medium-sized feed or spindle duties. Gate firing and current sensing are handled by the ICB1 control board, which manages the PWM carrier, fault logic, and parameter memory used with Control ROM type 3.

This drive pairs with BL motor and PREX motor families, so feedback resolution and thermal models match the drive’s control setup. Cabinet planning must accommodate the chassis footprint of 380 × 100 × 325 mm, leaving airflow clearance for heat-sink convection. Installation weight is 7.3 kg, which keeps panel loading moderate during mounting. A 7-segment LED on the front plate presents two-character alarm codes that correspond to overcurrent, overtemperature, or encoder-loss events, allowing quick status checks at the cabinet door. The display provides basic fault visibility without requiring a separate diagnostic device.