BL-MC400E-15SNA Okuma

Product Description:

The BL-MC400E-15SNA is an Okuma servo motor offered within the BL Servo Motors series. As an axis drive component, it converts electrical energy into controlled rotary motion so machine tools can execute programmed positioning, contouring, or feed-rate tasks in industrial automation cells.

This model develops a rated mechanical output of 6 kW, meaning the shaft can continuously deliver that power level when thermal limits are respected. Matching the power figure, the rotor turns at a nominal 1500 rpm, a speed that synchronizes with CNC command loops for stable cutting or indexing. Electrical compatibility is anchored by its line-to-line rating of 145 V AC; drive amplifiers must therefore supply that voltage to reach the stated power and speed. A balanced current draw is achieved because the windings are wired for a 3-Phase power supply, which smooths torque ripple and lowers conductor amperage per phase. Feedback comes from the ER-FC-2048D encoder mounted on the shaft; this device provides 2048 counts per revolution so the controller can close position and velocity loops without external transducers.

Complementing the model-specific encoder is its Absolute signaling format, allowing the control to know angular position immediately after power-up without a homing cycle. The construction follows the requirements of an AC Servo Motor, using stator windings energized by sinusoidal current to interact with permanent-magnet rotor poles. Production takes place in Japan, ensuring dimensional and electrical consistency with Okuma machining centers assembled at the same manufacturing base. Dependence on genuine Okuma parts for both the motor and the drive cabinet maintains firmware compatibility and preserves the tight velocity loop accuracy established by the 2048-line absolute encoder.