Oriental motor MB Series User manual

Introduction
Before using the fan
Only qualied 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. Oriental Motor Co., Ltd. is not responsible for any
damage caused through failure to observe this warning.
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.
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
yDo not use the product in explosive or corrosive environments, in the presence of ammable gases,
locations subjected to splashing water, or near combustibles. Doing so may result in re, electric shock
or injury.
yOnly qualied and educated personnel should be allowed to perform installation, connection,
operation and inspection/troubleshooting of the product. Handling by unqualied and uneducated
personnel may result in re, electric shock or injury.
yDo not transport, install the product, perform connections or inspections when the power is on. Always
turn the power o before carrying out these operations. Failure to do so may result in electric shock.
yTurn o the power in the event the overheat protection device (thermal protector) is triggered. Failure
to do so may result in injury or damage to equipment, since the fan will start abruptly when the
overheat protection device (thermal protector) is automatically reset.
yThe fan for classⅠequipment. Be sure to ground the Protective Earth Conductor when installing the
fan. Failure to do so may result in electric shock.
Lüfter zur Verwendung in Geräten der Schutzklasse I. Erden Sie den Motor bei der Installation mit einem
Schutzerdungskabel. Nichtbeachtung dieses Hinweises könnte einen elektrischen Schlag verursachen.
yInstall the fan in an enclosure in order to prevent electric shock or injury.
yKeep the input-power voltage within the specied range to avoid re and electric shock.
yConnect the cables securely according to the wiring diagram in order to prevent re and electric shock.
yDo not forcibly bend, pull or pinch the cable. Doing so may result in re.
yTurn o 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.
yDo not disassemble or modify the fan. This may cause electric shock or injury. Refer all such internal
inspections and repairs to the branch or sales oce from which you purchased the product.
CAUTION
yDo not use the fan beyond its specications, or electric shock, injury or damage to equipment may
result.
yKeep your ngers and objects out of the openings in the fan. This may causeinjury.
yDo not touch the motor during operation or immediately after stopping. The surface is hot and may
cause a burn.
yDo not hold the rotating parts (impeller) of the fan or lead wire. This may cause injury.
yKeep the area around the fan free of combustible materials in order to prevent re or a skin burn(s).
yTo prevent the risk of damage to equipment, leave nothing around the fan that would obstruct
ventilation.
yDo not touch the rotating parts (impeller) when the fan is in operation. This may cause injury. The use
of the accessory nger guard is recommended to ensure protection.
Wegen der Verletzungsgefahr dürfen die Lüfterügel bei Ventilatorbetrieb nicht berührt werden. Der
Gebrauch des als Sonderzubehör erhältlichen Fingerschutzes ist empfehlenswert, um erhöhte Sicherheit zu
gewährleisten.
yWhen an abnormality is noted, stop the operation immediately, or re, electric shock or injury may
occur.
yThe motor's surface temperature may exceed 70 °C(158 °F), even under normal
operating conditions. If a fan is accessible during operation, post the warning label
shown in the gure in a conspicuous position to prevent the risk of skin burn(s). Warning label
yDispose 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.
Checking the product
Verify that the items listed below are included. Report any missing or damaged items to the branch or
sales oce from which you purchased the product.
A plug cord is not supplied with the fan kit product of the lead wire type.
Fan Fan kit
Fan
OPERATING MANUAL (this document)
Capacitor *1
Capacitor cap *1
Fan
OPERATING MANUAL (this document)
Capacitor *1
Capacitor cap *1
Mounting bracket
Mounting screws
Finger guard or Filter *2
*1 Only for single-phase models except for MB630 type and MB520 type.
*2 Except for MB1665 type, MB630 type and MB520 type.
How to identify the fan kit model
T- MB1255-B - GA
A : Mounting bracke
t
Mounting screws
GA : Finger guard
Mounting bracket
Mounting screws
FA : Filter
Mounting bracket
Mounting screws
Fan model
Fan kit
Installation
Location for installation
Install it in a well-ventilated location that provides easy access for inspection.
The location must also satisfy the following conditions:
yInside an enclosure that is installed indoors
yOperating ambient temperature −10 to +50 °C (+14 to +122 °F) [non-freezing]
MB630 type and MB520 type: −10 to +60 °C (+14 to +140 °F)
yOperating ambient humidity 85%, maximum [non-condensing]
yArea that is free of explosive atmosphere or toxic gas (such as sulfuric gas) or liquid
yArea not exposed to direct sun
yArea free of excessive amount of dust, iron particles or the like
yArea not subject to splashing water (rains, water droplets), oil (oil droplets) or other liquids
yArea not subject to continuous vibration or excessive shocks
yArea free of radioactive materials, magnetic elds or vacuum
yArea 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 ow
inside the fan due to electromagnetic noise (conductive noise, radiative noise). If the induced current
ows, 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. Use the fan in the environment that the electromagnetic noise
does not cause.
How to install the fan
Install the fan onto an appropriate at metal plate having excellent vibration resistance and heat
conductivity.
zUse of mounting brackets (sold separately)
An accessory mounting bracket the diameter of the motor casing
is available. Be sure to use a spacer so that the casing does not
touch the surface to which the mounting bracket is secured.
Motor casing
Mounting bracket
Casing
Spaser
Model Screw size Tightening torque
MB630 type
MB520 type M3 0.6 N·m (5.3 lb-in)
Other MB series M4 1.4 N·m (12.4 lb-in)
HF-3175
OPERATINGMANUAL Thank you for purchasing an Oriental Motor product.
This Operating Manual describes product handling procedures and safety precautions.
yPlease read it thoroughly to ensure safe operation.
yAlways keep the manual where it is readily available.
AC Centrifugal Blowers
MB Series

yUnauthorized reproduction or copying of all or part of this manual is prohibited.
yOriental Motor shall not be liable whatsoever for any problems relating to industrial property rights
arising from use of any information, circuit, equipment or device provided or referenced in this
manual.
yCharacteristics, specications and dimensions are subject to change without notice.
yWhile we make every eort to oer accurate information in the manual, we welcome your input.
Should you nd unclear descriptions, errors or omissions, please contact the nearest oce.
yand are registered trademarks or trademarks of Oriental Motor Co., Ltd., in
Japan and other countries.
© Copyright ORIENTAL MOTOR CO., LTD. 2022
Published in June 2022
T
echnical Support Tel:[phone]
8:30am EST to 5:00pm PST (M-F)
www
.orientalmotor.com
• Please contact your nearest Oriental Motor oce for further information.
Schiessstraße 44, 40549 Düsseldor
f, Germany
T
echnical Support Tel:[phone]
www
.orientalmotor.de
Unit 5 F
araday Oce Park, Rankine Road,
Basingstoke
, Hampshire RG24 8QBUK
T
el:[phone]
www
.oriental-motor.co.uk
T
el:[phone]
www
.orientalmotor.fr
T
el:[phone]
www
.orientalmotor.it
4-8-1Higashiueno
,Taito-ku,Tokyo 110-8536
Japan
T
el:[phone]
www
.orientalmotor.co.jp
Tel:[phone]
www.orientalmotor.com.cn
Tel:[phone]
www.orientalmotor.com.tw
Singapore
Tel:[phone]
www.orientalmotor.com.sg
Tel:[phone]
www.orientalmotor.com.my
Tel:[phone]
www.orientalmotor.co.th
Korea
Tel:[phone]
www.inaom.co.kr
Tel:[phone] (For English)
1800-121-4149 (For Hindi)
www.orientalmotor.co.in
zSecuring the fan to the equipment with mounting screws
MB630 type and MB520 type have three mounting screw holes* on the casing so that the fan can be
secured without using an accessory mounting bracket.
Install the fan by using screws (not supplied), after making corresponding screw holes on the surface
where the fan is to be mounted by referring to the inlet dimensions
(see general catalog).
MB630 type or MB520 type
Mounting
screw
Plate
t
Model Screw size Tightening
torque
MB630 type M3 P0.5
Length= t +3.5 mm (0.14 in.) 0.6 N·mm
(5.3 lb-in)
MB520 type M3 P0.5
Length= t +2.5 mm (0.1 in.)
t: Thickness of mounting plate [Unit: mm (in.)]
Tolerance of the length of screw: ±0.5 mm (0.02 in.)
* These mounting screw holes are also used to install a nger guard (sold separately).
When using the nger guard, the fan cannot be screwed to the equipment directly. Use the dedicated
mount bracket.
zRotational direction and air orientation
•MB1665 type
Air ow
Rotation
•Other MB series
Rotation
Air ow
Mounting the capacitor
Before mounting the provided capacitor, check that the capacitor’s
capacitance matches that stated on the fan’s name plate. Mount
the capacitor securely by using M4 screws (not provided).
Ø4.3 mm (0.17 in.)
Note
yDo not let the screw fastening torque exceed 1 N·m (8.8 lb-in) to prevent damage to the
mounting foot.
yMount capacitor at least 10 cm (3.94 in.) away from the motor. If it is located closer, the
life of the capacitor will be shortened.
Wiring
zMB1665-B, MB1665-D, MB1255-B, MB1255-D, MB1040-B,
MB1040-D, MB840-B, MB840-D
L
N
Po
wer supply
White
Black
Red
Grounding
zMB1665-T, MB1255-T, MB840-T
L1 (R)
L2 (S)
L3 (T)
Grounding
Po
wer supply
White
Black
Red
zMB630-B, MB630-D, MB520-B, MB520-D
Po
wer supply
L
NGrounding
Connecting the capacitor
When crimp terminals are used, use the FASTON
terminals 187 Series (TE Connectivity).
Use the included capacitor cap to insulate the
capacitor terminal connection.
The capacitor has four terminals that are internally
connected as shown in the gure.
187 series
Capacitor
187 series
Capacitor
cap
Note For lead wire connection, use one lead wire for each individual terminal.
Overheat protection
This fan is equipped with one of two methods to prevent burning the fan as a result of abnormal heating.
zThermal protection
(MB1665 type, MB1255 type, MB1040 type and MB840 type)
The fan uses a thermal protector for overheat protection. Once the temperature reaches a specied level,
the internal thermal protector that has an automaticreturn feature is triggered to stop the fan operation.
Be sure to turn o the power when checking the thermal protector.
Operating temperature of thermal protectors
Open [Power OFF]........ 120±5 °C (248±9 °F) MB1665 type 130±5 °C (266±9 °F)
Close [Power ON].......... 76±20 °C (169±36 °F) MB1665 type 85±20 °C (185±36 °F)
zImpedance protection (MB630 type and MB520 type)
Impedance protection means the fan will not burn out in the event of a lockup.
Regulations and standards
UL Standards, CSA Standards
This product is recognized by UL under the UL and CSA Standards.
Thermal class UL/CSA Standards:105(A) MB1665 type only 130 (B)
CE Marking
This product is axed the CE Marking under the Low Voltage Directive. (Excluding MB1665 type)
Applicable standards
Overvoltage categoryⅡ, Pollution degree 2, ClassⅠequipment
If the overvoltage categoryⅢis required based on the equipment, supply the rated voltage to the fan via
an isolation transformer.
RoHS Directive
This products do not contain the substances exceeding the restriction values.