1
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 document has been designed and manufactured to be
incorporated in general industrial equipment. Do not use for any other purpose. Oriental
Motor Co., Ltd. is not responsible for any damage caused through failure to observe this
warning.
Applicable product
DC axial flow fans
MD
Series
V
Type (variable speed)
For information and precautions about handling the product, check the operating manual
included with the applicable product.
Safety precautions
The precautions described below are intended to ensure the safe and correct 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.
WARNING
Handling the product without observing the instructions
that accompany a "WARNING" symbol may result in serious
injury or death.
CAUTION
Handling the product without observing the instructions
that accompany a "CAUTION" symbol may result in injury or
property damage.
Note
The items under this heading contain important handling
instructions that the user should observe to ensure safe use
of the product.
WARNING
•
Do not use the product in explosive or corrosive environments, in the presence of
flammable gases or near combustibles. Doing so may result in fire or injury.
•
Only qualified and educated personnel should be allowed to perform installation,
connection, operation and inspection/troubleshooting of the product. Handling by
unqualified and uneducated personnel may result in fire or injury.
•
Always keep the power supply voltage within the specified range. Failure to do so may
result in fire.
•
Connect the product securely according to the connection diagram. Failure to do so may
result in fire.
•
Do not forcibly bend, pull or pinch the lead wire. Doing so may result in fire.
•
Turn off the power in the event of a power failure. Otherwise, the fan will suddenly start
when the power is restored, and this may cause injury or damage to equipment.
•
Do not disassemble or modify the product. Doing so may cause injury.
CAUTION
•
Do not use the product beyond the specifications. Doing so may result in injury or
damage to equipment.
•
Keep the area around the product free of combustible materials. Failure to do so may
result in fire or a skin burn(s).
•
Do not touch the fan while operating. Doing so may cause injury. The use of an accessory
finger guard is recommended to ensure protection.
•
When an abnormality is noted, turn off the power immediately. Failure to do so may
result in fire or injury.
•
For the power supply, use a DC power supply with reinforced insulation on its primary
and secondary sides. Failure to do so may result in electric shock.
Preparation
Checking the product
Verify that the items listed below are included. Report any missing or damaged items to
the branch or sales office from which you purchased the product.
Speed controller..........1 unit
Wiring cover..........1 piece
Operating manual (this document)..........1 copy
Names and functions of parts
Front side
Rear side
1
2
4
3
5
7
6
8
POWER
ALARM
SPEED
9
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TB1
TB2 FAN
Protective film
Use after removing the protective film.
Number
Name
Indication
Function
1
Indicator (Green)
－
This indicator shows the fan speed (PWM
output) in linking with the setting dial, as
well as an alarm.
2
POWER LED (Green)
POWER
This LED is lit when the power is input.
3
ALARM LED (Red)
ALARM
This LED blinks when an alarm is
generated.
4
Setting dial
SPEED
This setting dial is used to set the fan
speed (PWM output).
5
I/O connection
terminal
TB1
Connects the power supply, the speed
switching input, and the alarm output.
6
Fan connection
terminal
TB2
FAN
Connects a fan.
7
Nameplate
－
The model name, the serial number, and
the year and month of manufacture are
described.
8
Function select
switches
SW1
Uses for switching the setting.
Refer to p.3 for details.
Installation
Installation location
Install the product in the following location that provides easy access for inspection.
•
Inside an enclosure installed indoors
•
Operating ambient temperature: –10 to +60 °C [+14 to +140 °F] (non-freezing)
•
Operating ambient humidity: 85% or less (non-condensing)
•
Area that is free of explosive atmosphere or toxic gas (such as sulfuric gas) or liquid
•
Area not exposed to direct sun
•
Area free of excessive amount of dust, iron particles or the like
•
Area not subject to splashing water (rain, water droplets), oil (oil droplets) or other liquids
•
Area not subject to continuous vibration or excessive shocks
•
Area free of radioactive materials, magnetic fields or vacuum
•
Altitude: Up to 1000 m (3300 ft.) above sea level
•
Area free of excessive electromagnetic noise (from welders, power machinery, etc.)
When using near a switching circuit or high-frequency power supply, the induced current
may flow inside the fan due to electromagnetic noise (conductive noise, radiative noise).
If the induced current flows, the electric corrosion is caused in the bearings of the fan. As
a result, it may generate the noise or shorten the service life of the products.
HF-3167-3
O P E R A T I N G M A N U A L
Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and safety precautions.
•
Please read it thoroughly to ensure safe operation.
•
Always keep the manual where it is readily available.
Fan Speed Controller
FSC-24
