Motors; Installation Environment - YASKAWA UAK series User Manual

6 Installation

6.1.1 Installation Environment

6.1

Motors

The service life of the motor will be shortened or unexpected problems will occur if the motor is installed
incorrectly or in an inappropriate location. Always observe the following installation instructions.
6.1.1

Installation Environment

Ambient Temperature 0 to 40°C (no freezing)
Ambient Humidity
Installation Site
Storage Environment
Note these additional points when using spindle motors.
• Provide sufficient space so that cooling air will be provided to the cooling fan. Keep a space of at least 100
mm between the machine and the ventilation outlet of the motor.
If ventilation is not proper, the motor temperature fault protective function will work regardless of whether or not the
load is at the rated value or not.
• Install the motor in a clean location free from oil mist and water drops. If the motor is likely to come in con-
tact with water or oil, protect the motor with a cover.
The intrusion of water or dirty oil into the interior of the motor will decrease the insulation resistance, which may
result in a ground fault.
• Check that the mounting bed, base, or stand of the motor is of robust construction.
The weight of the motor as well as the dynamic load of the motor in operation will be imposed on it, possibly causing
vibration.
• Use seal connectors, conduits, or similar devices to seal the cable openings of the motor terminal box.
Failure to observe this caution may result in cuttings, mist of cutting oil, or other foreign matter entering the motor
through the cable opening, possibly causing malfunction.
• If you install the motor so that the shaft faces vertically downward, do not allow the motor shaft to come
into contact with the frame, ground surface, or other objects.
Doing so would press the motor shaft into the motor, possibly damaging the bearings.
6-2
Item
20% to 80%RH (no condensation)
• Free of corrosive or explosive gases
• Well-ventilated and free of dust and moisture
• Facilitates inspection and cleaning.
• Elevation:1,000 m max.
• Free of high magnetic field
• Free of oil
Store the motor in the following environment if it is stored with the power cable disconnected.
Ambient temperature during storage: -20 to +60°C (no freezing)
Ambient humidity during storage: 20% to 80%RH (no condensation)
Condition
CAUTION