Oriental motor EMU Series Operating Manual

O P E R A T I N G M A N U A L
EC Fan
EMU EMU1225
Series
Introduction
„ Before using the product
Only qualified personnel of electrical and mechanical engineering should
work with the product. Use the product correctly after thoroughly reading
the section "Safety precautions. " In addition, be sure to observe the contents
described in warning, caution, and note in this manual.
The product described in this manual is designed and manufactured to be
incorporated into general industrial equipment. Do not use it for any other
purpose. Oriental Motor Co., Ltd. is not responsible for any compensation for
damage caused through failure to observe this warning.
Safety precautions
The precautions described below are intended to ensure the safe and proper
use of the product and to prevent the user and other personnel from exposure
to the risk of injury. Use the product only after carefully reading and fully
understanding these instructions.
Handling the product without observing the
instructions that accompany a "WARNING" symbol may
result in serious injury or death.
Handling the product without observing the
instructions that accompany a "CAUTION" symbol may
result in injury or property damage.
The items under this heading contain important
Note
handling instructions that the user should observe to
ensure safe use of the product.
Explanation of graphic symbols
Indicates "prohibited" actions that must not be performed.
Indicates "compulsory" actions that must be performed.
y Do not use the product in explosive or corrosive environments, in
the presence of flammable gases, in areas subjected to splashing
water, or near combustible materials. Doing so may result in fire,
electric shock, or injury.
y Do not use the fan beyond its specifications. Doing so may result in
electric shock, injury, or damage to equipment.
y Do not use the product in an environment where it is exposed to
water, oil, solvents, chemicals, or other liquids, or in a space where
it is volatile. The resin part (blades) is damaged, resulting in injury
or damage to equipment.
y Do not transport, install, connect, or inspect the product while the
power is supplied. Always turn off the power before carrying out
these operations. This may cause electric shock or injury.
y Do not forcibly bend, pull, or pinch the lead wire. Doing so may
result in fire or electric shock.
y Keep the area around the fan free of combustible materials. Failure
to do so may result in fire or a skin burn(s).
y Do not disassemble or modify the fan. Doing so may result in
electric shock, injury, or damage to equipment. Refer all such
internal inspections and repairs to the sales office from which you
purchased the product.
HF-3185
Thank you for purchasing an Oriental Motor product.
This operating manual describes product handling procedures and safety
precautions.
y Please read the manual thoroughly to ensure safe operation.
y Always keep the manual where it is readily available.
y Assign qualified personnel to the task of installing, wiring,
operating/controlling, inspecting, and troubleshooting the
product. Handling by unqualified and uneducated personnel may
result in fire, electric shock, or injury.
y Securely install the fan in an enclosure. Failure to do so may result
in electric shock or injury.
y Keep the input power voltage within the specified range. Failure to
do so may result in fire or electric shock.
y Perform connections securely according to the connection
diagram. Failure to do so may result in fire or electric shock.
y Turn off the power in the event of a power failure. Otherwise, the
fan will start unexpectedly when the power is restored. This may
cause injury or damage to equipment.
y Keep your fingers and objects out of the openings in the fan. Failure
to do so may result in injury.
y Do not conduct the insulation resistance measurement or dielectric
strength test between the fan lead wires and the alarm lead wires.
Doing so may result in damage to the alarm circuit.
y Do not touch the motor section during operation or immediately
after stopping. The surface of the motor section is hot and touching
it may cause a skin burn(s).
y Do not lift the fan by holding the rotating part (blades) or lead
wires of the fan. Doing so may result in injury.
y Do not leave anything around the fan that would obstruct
ventilation. Doing so may result in damage to equipment.
y Do not touch the rotating part (blades) while operating. Doing so
may result in injury. The use of the finger guard is recommended to
ensure protection.
y Shut off the power to the fan in the event the lock-protection
circuit is activated. Otherwise, the fan will start unexpectedly
when released from the locked condition. This may cause injury or
damage to equipment.
y Immediately when trouble has occurred, stop operation and turn
off the power supply. Failure to do so may result in fire, electric
shock, or injury.
y Take safety measures to protect against momentary voltage drops.
This may cause the rotation speed to decrease, resulting in injury or
damage to equipment.
y The surface temperature of the motor section may
exceed 70 °C (158 °F) even when the fan is rotating
under normal operating conditions. If the operator is
allowed to approach the operating fan, place a warning
label on a conspicuous position as shown in the figure.
The surface is hot, and this may cause a skin burn(s).
Warning
label
1