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HF-3107-15 

 

O P E R A T I N G   M A N U A L 

 

 

Brushless DC Fan 

 

MDS

 

Series

   

MDE

 

Series

 

 

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. 

 

 

Introduction 

 

Before using the fan 

Only qualified and educated personnel should work with the product. 
Use the product correctly after thoroughly reading the section “Safety 
precautions.” 
The product described in this manual has been designed and manufactured to 
be incorporated in general industrial equipment. Do not use for any other 
purpose. For the power supply use a DC power supply with reinforced 
insulation on its primary and secondary sides. 
Oriental Motor Co., Ltd. is not responsible for any damage caused through 
failure to observe this warning. 

 

Standard · CE Marking 

The product is recognized by UL and certified by DEMKO. 

• 

Standards 

Standards Certification 

body 

UL 507 

UL 

CSA C22.2 No.113 

UL, CSA 

EN 60950-1 

DEMKO, TÜV 

 

The applicable standards and certification body vary according to the product. 

• 

Installation conditions (For EN Standards) 

Overvoltage category I, Pollution degree 2, Class III equipment 

• 

Applicable standards 

EMI EN 

61000-6-4 

EMS EN 

61000-6-2 

 

RoHS Directive 

The products do not contain the substances exceeding the restriction values 
of RoHS Directive (2011/65/EU). 

 

Republic of Korea, Radio Waves Act. 
(Only 

MDS1451/ MDE1451

KC Mark is affixed to this product under the Radio Waves Act, 
the republic of Korea. 

Safety precautions 

The precautions described below are intended to prevent danger or injury to 
the user and other personnel through safe, correct use of the product. 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. 

 

• 

Do not use the product in explosive or corrosive environments, in the 
presence of flammable gases, locations subjected to splashing water, 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. Failure to do so may result in fire or injury. 

• 

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, causing bodily injury or equipment damage. 

• 

Install the fan in an enclosure in order to prevent injury. 

• 

Keep the input-power voltage within the specified range to avoid fire. 

• 

Connect the cables securely according to the wiring diagram in order to 
prevent fire. 

• 

Do not forcibly bend, pull or pinch the cable. Doing so may fire. 

• 

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. 

• 

Turn off the power in the event of a power failure, or the fan will suddenly 
start when the power is restored and may cause injury or damage to 
equipment. 

• 

Do not disassemble or modify the fan. This may cause injury. Refer all 
such internal inspections and repairs to the branch or sales office from 
which you purchased the product. 

 

Caution

 

 

Handling the product without observing the instructions that accompany a 
“Caution” symbol may result in injury or property damage. 

 

• 

Do not use the fan beyond its specifications, or injury or damage to 
equipment may result. 

• 

Keep your fingers and objects out of the openings in the fan. This may 
cause injury. 

• 

Do not hold the rotating parts (blades) of the fan or lead wire. This may 
cause injury. 

• 

Keep the area around the fan free of combustible materials in order to 
prevent fire or a burn. 

• 

To prevent the risk of damage to equipment, leave nothing around the fan 
that would obstruct ventilation. 

• 

Provide anti-static measures before installing the fan. Failure to do so may 
result in equipment damage. 

• 

Do not touch the rotating parts (blades) when the fan is in operation. This 
may cause injury. The use of the optional fingerguard is recommended to 
ensure protection. 

Wegen der Verletzungsgefahr dürfen die Lüfterflügel bei Ventilatorbetrieb 
nicht berührt werden. Der Gebrauch des als Sonderzubehör erhältlichen 
Fingerschutzes ist empfehlenswert, um erhöhte Sicherheit zu 
gewährleisten.

 

• 

Immediately when trouble has occurred, stop running and turn off the 
power. Failure to do so may result in fire or injury. 

• 

Dispose the product correctly in accordance with laws and regulations, or 
instructions of local governments. 

Preparation 

Verify the model number of the purchased product against the number shown 
on the package label. The fan model name is listed on the fan nameplate. 

 

Type Model 

Standard type 

MDS1451-24 
MDS1451-48 
MDS1751-24 
MDS1751H-24 
MDS1751FH-24

 

Stall alarm, electronic alarm type 

MDS1451-24L 
MDS1451-48L

 

Long life models 
(Stall alarm, electronic alarm type) 

MDE1451-24L2 
MDE1451-48L2 
MDE1751-24L 
MDE1751F-24L

 

Pulse sensor type 

MDS1451-24S 
MDS1451-48S 
MDS1751-24S

 

 
 
 
 

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