Mitsubishi Electric C70 Connection Manual page 8

CAUTION
Install the controller's display unit and operation board unit on the spot where cutting oil will not reach.
The controller, servo drive unit and servomotor are precision devices, so do not drop or apply thumping vibration
and strong impacts on them.
Hard disk unit is a precision device, so do not drop or apply strong impacts on it.
Store and use the units according to the environment conditions indicated in each specifications manual.
Securely fix the motor to the machine. The motor could come off during operation if insecurely fixed.
Always install the servomotor with reduction gear in the designated direction. Failure to observe this could result
in oil leaks.
Always install a cover, etc., over the shaft so that the rotary section of the spindle motor cannot be touched
during motor rotation.
When using a coupling connection to the servomotor shaft end, do not apply impacts by hammering, etc. The
detector could be damaged.
Use a flexible coupling when connecting with a ball screw, etc., and keep the shaft core deviation smaller than
the tolerable radial load of the shaft.
Do not use a rigid coupling as an excessive bending load will be applied on the shaft and could cause the shaft
to break.
Do not apply a load exceeding the tolerable level onto the motor shaft. The shaft or bearing could be damaged.
Before using this product after a long period of storage, please contact the Mitsubishi Service Station or Service
Center.
Following the UN recommendations, battery units and batteries should be transported based on the
international regulations such as those determined by International Civil Aviation Organization (ICAO),
International Air Transport Association (IATA), International Maritime Organization (IMO) and U.S. Department
of Transportation (DOT).
Due to ventilation problems, do not install the base units vertically or horizontally when C70 is mounted on a
board, etc.
Install the basic base on a flat surface. Unevenness or warping of the surface can apply undue force to printed
circuit boards and lead to operation failures.
Avoid installing the base units close to a vibration source, such as a large electromagnetic contactor or no-fuse
breaker. Install them on a separate panel or at a safe distance.
To limit the effects of reflected noise and heat, leave 100mm(3.94inch) or more clearance to instruments fitted in
front of CNC CPU (on the rear of the door).
Similarly, leave 50mm(1.97inch) or more clearance between instruments and the left and right sides of the basic
base.