- 1 -
I. Preparation for operation
1. Checking at arrival of motor
When the ordered motor arrived, please check paying attention to the following points.
(1) Check the motor with our invoice separately sent.
(2) Check the motor for damage, rusting, dropping of accessories, etc.
(3) There is a case that the rotor of motor is fixed in order to prevent the bearing from being
damaged during transportation. Check the rotor and remove it.
(4) Rotate the shaft end manually to confirm smooth rotation.
(5) Check the motor output, voltage, current, frequency, rotation speed, etc. shown on the name
plate.
Photo. of external appearance of motor
2. Installation
2.1 Installation place
(1) Install the motor at a well-ventilated place and arrange not to return the coming out heat from
the motor, to the intake side by circulation. At a place where the ambient temperature is high or
when the motor is influenced by heat radiation/conduction, take measures such as heat
insulation, reduction of load, etc.
(2) Distance between the inlet of cooling fan of the motor and the wall should be 20cm or more for
EDM13
～
EDM31 and 30cm or more for EDM35
～
EDM68.
(3) Place with less humidity.
(4) Place with less dust. If dust is accumulated on the fins of frame, cooling effect will be reduced
causing overheating. Therefore, periodical cleaning should be done in case of dusty place.
(5) Place where motor is not influenced by noxious gas and acid/alkaline chemicals, etc. When
motor is used at a place where flammable gas exists, re-check whether selected explosion proof
structure conforms to the regulations of Ministry of Economy, Trade and Industry and the
Ministry of Health, Labor and Welfare.
(6) Place where such works as disassembly, inspection, cleaning and maintenance can be carried
out easily.
(7) Install the motor on a strong foundation and rigid common base so that external vibration will
not be conducted to the motor. If vibration during operation is large, bearing life will be
shortened and it will cause the vibration fatigue failure of fan, rotor, etc.
(8) Place with less fluctuation of supply voltage and less voltage drop.
Connector for pulse oscillator
Fram
e
Main
terminal box
Shaft
Bracket
Fan cover
Auxiliary terminal box
(for cooling fan)
