Outline; Features For Mds-B-Spj2 Series; Precautions For Use - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

1. Outline

1.1 Features for MDS-B-SPJ2 Series

(1) The unit has been downsized and reduced in weight with the incorporation of a high speed, high
integration LSI, high speed DSP and IGBT
(2) The speed response has been improved with the high speed DSP, improving the cutting capacity
and improving the cutting precision during positioning control.
(3) A smooth operation and short time orientation time have been realized by incorporating the high
speed orientation method that enables direct orientation from high speeds.
(4) All spindle parameters can be set from the NC side CRT screen making operation easier.

1.2 Precautions for use

(1) The motor rated output is guaranteed at the drive unit rated input (200/220/230VAC). If the input
voltage fluctuates and drops below this, the rated output may not be reached.
(2) A PWM controlled high harmonics chopper voltage is applied on the motor, so a high harmonic
leakage current will flow during motor operation.
If a general purpose leakage breaker is used, it may malfunction due to the high harmonics. Always
use a leakage breaker for inverter purposes.
(3) The above high harmonics leakage current will also flow in the grounding wire between the motor
and controller. If this grounding wire is placed near the NC CRT screen, the CRT screen may
malfunction due to the magnetic field of the leakage current. Keep the grounding wire and CRT
screen as far away as possible.
(4) Noise could be a problem particularly to AM radio broadcasts due to the magnetic radio wave noise
radiated from the motor and controller.
Keep radios as far away from the motor and controller as possible.
A filter for radio noise measures is prepared as an option, so use it as necessary.
1. Outline
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