Enclosure; Installation Orientation - YASKAWA UAK series User Manual

6.1.2 Enclosure

The motor enclosure

Enclosure

∗
Except shaft opening. The enclosure specification can be satisfied
only when using a specified cable.
(1) Spindle motor
If the spindle motor is used in a location that is subject to water or oil mist, contact your Yaskawa representa-
tive.
(2) Servomotor
If the servomotor is used in a location that is subject to water or oil mist, order a servomotor with an oil seal to
seal the through shaft section.
Precautions on Using Servomotor with Oil Seal
• Put the oil surface under the oil seal lip.
• Use an oil seal in favorably lubricated condition.
• When using a servomotor with its shaft upward direction, be sure that oil will not stay in the oil seal lips.

6.1.3 Installation Orientation

(1) Spindle motor
Flange type
• Mount the motor with the motor shaft on the load side at any angle between horizontal and the downward
vertical direction. If the motor shaft is facing up, excessive force will be imposed on the motor shaft. As a
result, the service life of the motor will be adversely affected.
• Use the motor UAKAJ-45 or UAKBJ-30 (outer diameter
the motor shaft facing horizontal. If the terminal box is in the horizontal or downward direction, dust may
intrude from the ventilation mouth on the bottom of the load-side bracket. As a result, the motor may fail to
operate or unexpected accidents may occur.
Foot-mounted type
• Mount the legs on the floor. If the legs are installed upward, excessive force will be imposed on the legs. As
a result, the service life of the motor will be adversely affected.
(2) Servomotor
Mount the servomotor either horizontally or vertically.
When mounting the servomotor vertically, make cable
traps to keep out water. When mounting the servomo-
tor with the shaft up, take measures with the connected
machine to prevent oil from getting into the servomo-
tor through gear boxes etc.
*
is described table as follows.
Spindle motor Servomotor
IP44 IP67
380) with the terminal box facing upward and
Horizontal
6.1 Motors
Flange
Shaft opening
This refers to the gap where
the shaft protrudes from
the end of the motor.
Shaft
Vertical
Cable trap
6
6-3