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Introduction

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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 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.

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Operating Manuals for the product

Operating manuals for this product are listed below. Refer to the operating 

manuals supplied with the driver for details about connections and operations.

BLM

 

Motor Connector type Hollow shaft flat gearhead  

OPERATING MANUAL (this document)

BMU

 Series, 

BLE2

 Series OPERATING MANUAL  

(included with the driver)

Safety precautions

The precautions described below are intended to ensure the safe and correct 

use of the product, and to prevent the customer and others 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.

[Description of graphic symbols]

 : Indicates "prohibited" actions that must not be performed.

 : Indicates "compulsory" actions that must be performed.

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, electric shock or injury.

 

Do not transport, install the product, perform connections or 

inspections when the power is on. Always turn the power off before 

carrying out these operations. Failure to do so may result in electric 

shock or equipment damage.

 

Do not use a motor in a vertical application. If the driver protective 

function is activated, the motor will stop and the moving part of the 

equipment may drop. This may cause injury or damage to equipment.

 

Do not machine or modify the connection cable. Doing so may result 

in fire, electric shock or damage to equipment.

 

Do not apply any excessive force to the motor connector. Doing so 

may result in fire, electric shock or damage to equipment.

 

Do not forcibly bend, pull or pinch the cables. Doing so may result in 

fire, electric shock or damage to equipment.

 

Do not remove the connector cap until the connection cable is 

connected so that the O-ring of the connector for cable connection on 

the motor is not damaged. Doing so may result in fire, electrical shock, 

or damage to equipment.

HM-5254-2

OPERATING MANUAL

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.

Brushless Motor

BLM 

Motor

 

Connector Type

  

Hollow shaft flat gearhead

  

WARNING

 

Do not touch the motor or driver when conducting insulation 

resistance measurement or dielectric strength test. Accidental contact 

may result in electric shock.

 

Do not disassemble or modify the motor and gearhead. Doing so may 

result in electric shock, injury or damage to equipment. Refer all such 

internal inspections and repairs to the branch or sales office from 

which you purchased the product.

 

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, electric shock, injury or equipment damage.

 

The motor is Class

equipment. When installing the motor and driver, 

ground their Protective Earth Terminals. Failure to do so may result in 

electric shock.

 

Use a motor and driver only in the specified combination. An incorrect 

combination may result in fire, electric shock or damage to equipment.

 

Always turn off the power before performing maintenance/ 

inspection. Failure to do so may result in electric shock

CAUTION

 

Do not use the motor beyond the specifications. Doing so may result 

in fire, electric shock, injury or damage to equipment.

 

Do not touch the motor while operating or immediately after stopping. 

The surfaces of the motor is hot, and it may cause a skin burn(s).

 

Do not leave anything around the motor that would obstruct 

ventilation. Doing so may result in damage to equipment.

 

Do not lift up the product by holding the connection cable. Doing so 

may result in injury.

 

Do not touch the motor output shaft (end or pinion) with bare hands.

Doing so may cause injury.

 

When assembling the motor with the gearhead, exercise caution not 

to pinch your fingers or other parts of your body between the motor 

and gearhead. Injury may result.

 

When installing the motor in equipment, exercise caution not to 

pinch your fingers or other parts of your body between the product 

and equipment. Injury may result.

 

Do not touch the rotating part (output shaft) when operating the 

motor. Doing so may result in injury.

 

Securely install the motor to the mounting plate. Inappropriate 

installation may cause the motor and gearhead to detach and fall, 

resulting in injury or equipment damage.

 

Provide a cover over the rotating part (output shaft). Failure to do so 

may cause injury.

 

Securely install a load on the output shaft. Failure to do so may cause 

injury.

 

Be sure to ground the motor and driver to prevent them from being 

damaged by static electricity. Failure to do so may result in fire or 

damage to equipment.

 

The motor surface temperature may exceed 70 °C (158 °F) 

even under normal operating conditions. If the operator 

is allowed to approach the motor in operation, attach a 

warning label in a conspicuous position as shown in the 

figure. Failure to do so may result in a skin burn(s).

Warning 

label

Summary of Contents for BMU Series

Page 1: ...MANUAL 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 Brushless Motor BLM Motor Connector Type Hollow shaft flat gearhead WARNING Do not touch the motor or driver when conducting insulation resistance measurem...

Page 2: ...er connected may result in damage to the product Operations z zRotation direction of the gearhead output shaft The rotation direction of the output shaft indicates that rotation in the clockwise direction when viewed from the output shaft side represents CW and that in the counterclockwise direction represents CCW The rotation directions of the gearhead output shaft relative to the motor output sh...

Page 3: ...driver the dedicated connection cable sold separately is required The connection cables are provided up to 20 m 65 6 ft The cable length that can be connected vary depending on the driver used Check the operating manual included with the driver Model name and type Cable outlet direction F Output shaft direction B Opposite to output shaft direction V Vertical direction Output shaft direction CC____...

Page 4: ...ead screw L2 mm in Tightening torque N m lb in Screw size L1 mm in 30 W M5 65 2 56 15 0 59 3 8 33 60 W M6 70 2 76 14 0 55 6 4 56 120 W M8 90 3 54 21 0 83 15 5 137 z zUsing the front side as the mounting surface When the gearhead is installed by using its front side as the mounting surface use the boss section of the output shaft to align the center Hexagonal socket head screw Mounting plate Plain ...

Page 5: ...e and secure the retaining ring to the load shaft by tightening the hexagonal socket head screw over a spacer flat washer and spring washer Plain washer Spacer Retaining ring Spring washer Hexagonal socket head screw Spacer Stepped load shaft Parallel key Spacer Retaining ring Hollow output shaft Hexagonalsocket head screw Spring washer Plain washer Spacer Parallel key Load shaft Recommended load ...

Page 6: ...er may cause damage Locking lever Connection procedures of the motor and connection cable 1 Remove 2 Attach The connector cannot be inserted if the locking lever is turned down 3 Secure Be sure to turn down the locking lever till the position shown in the figure Secure the connector by turning down the locking lever completely Check the cable outlet direction and insert the connector securely Secu...

Page 7: ...e out of alignment Check if a damage or stress is applied on the cable or the connection part between the cable and driver is loose Warranty Check on the Oriental Motor Website for the product warranty Disposal Dispose the product correctly in accordance with laws and regulations or instructions of local governments Specifications Check on the Oriental Motor Website for the product specifications ...

Page 8: ...86 www orientalmotor co in Hong Kong Branch Tel 852 2427 9800 Regulations and standards Standard and CE Marking This product is recognized by UL under the UL and CSA standards and it is also affixed the CE Marking under the Low Voltage Directive The motor model name represents the model that conforms to the standards z zUL Standards and CSA Standards Applicable Standards Applicable Standards Certi...

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