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1

Introduction

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„

Before using the motor

Only qualified personnel 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.

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

 

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.

 

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.

 

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.

 

Turn off 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 motor will start abruptly when the overheat protection 

device (thermal protector) is automatically reset.

 

The motor is Class

equipment. Install the motor so as to avoid contact with 

hands, or ground it to prevent the risk of electric shock.

 

Keep the input power voltage within the specified range. Failure to do so may 

result in fire or electric shock.

 

Securely connect the cables in accordance with the connection examples. 

Failure to do so may result in fire or electric shock.

 

Do not forcibly bend, pull or pinch the lead wire (cable). Doing so may result 

in fire and electric shock.

 

Insulate the connection terminals of the supplied capacitor using the 

supplied capacitor cap. Failure to do so may result in electric shock.

 

Turn off the power in the event of a power failure. Or the motor may suddenly 

start when the power is restored and may cause injury or damage to equipment.

 

Do not touch the connection terminal of the capacitor immediately after the 

power is turned off (for a period of 30 seconds). The residual voltage may 

cause electric shock.

 

Do not disassemble or modify the motor. This may cause electric shock or injury.

Caution

 

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

shock, injury or damage to equipment.

 

Do not touch the motor during operation or immediately after stopping. The 

surface is hot and may cause a skin burn(s).

 

Do not lift the motor by holding the motor output shaft or motor lead wires. 

Doing so may result in injury.

 

Keep the area around the motor free of combustible materials. Failure to do 

so may result in fire or 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 touch the rotating part (output shaft) while operating the motor. 

Doing so may result in injury.

 

When an abnormality is noted, turn off the power immediately. Failure to do 

so may result in fire, electrical shock or injury.

 

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

even under normal operating conditions. If the operator is 

allowed to approach the running motor, attach a warning 

label as shown in the figure in a conspicuous position.  

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

Warning label

 

Dispose the product correctly in accordance with laws and regulations, or 

instructions of local governments.

Preparation

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„

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.

  Motor ...................................................... 1 unit

  The combination type comes with the motor and its dedicated gearhead  

  pre-assembled.

  Capacitor ............................................... 1 piece

  Capacitor cap ....................................... 1 piece

  Mounting screw set ........................... 1 set (only for combination type)

  Hexagonal socket head screw, washer, spring washer 4 pieces each,  

  parallel key 1 piece

  OPERATING MANUAL ........................ 1 copy (this document)

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„

Checking the model name

Check the model names of the motor 

and the gearhead against the model 

name described on each nameplate.

The figures show the lead wire type.

Motor

Gearhead

Protective Earth 

Terminal

„

: Enter a motor classification representing the power supply voltage.

 

JA

: Single-phase 100 V  50/60 Hz 

JC

: Single-phase 200 V  50/60 Hz

 

UA

: Single-phase 110/115 V  60 Hz 

UC

: Single-phase 220/230 V  60 Hz

 

GC

: Single-phase 220/230 V  50 Hz

: Enter a number representing the gear ratio.

 

z

Combination type

Lead wire type

Model

Motor model

Gearhead 

model

Degree of 

protection

2RK6

„

-

2RK6GV-

„

2GV

B

IP20

3RK15

„

-

3RK15GV-

„

3GV

B

4RK25

„

-

4RK25GV-

„

4GV

B

5RK40

„

-

5RK40GV-

„

5GV

B

5RK60

„

-

5RK60GVH-

„

5GVH

B

5RK90

„

-

5RK90GVR-

„

5GVR

B

Terminal Box Type

Model

*

Motor model

Gearhead 

model

Degree of 

protection

4RK25

„

T2-

4RK25GV-

„

T2

4GV

B

IP40

5RK40

„

T2-

5RK40GV-

„

T2

5GV

B

5RK60

„

T2-

5RK60GVH-

„

T2

5GVH

B

IP20

5RK90

„

T2-

5RK90GVR-

„

T2

5GVR

B

 

*

For the product having changed the position of the terminal box, the code is 

added at the end of the model name.

 

z

Round shaft type

For the model name of the round shaft type, "A" is used instead of "GV", "GVH" 

or "GVR" in the "motor model name," which indicates the motor shaft type.

HM-9355-7

O P E R AT 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.

K

Series  

Reversible motor

  

  

Summary of Contents for K Ⅱ Series

Page 1: ...Do not disassemble or modify the motor This may cause electric shock or injury Caution Do not use the motor beyond its specifications Doing so may result in electric shock injury or damage to equipment Do not touch the motor during operation or immediately after stopping The surface is hot and may cause a skin burn s Do not lift the motor by holding the motor output shaft or motor lead wires Doing...

Page 2: ...ving the gearhead from the motor Remove the hexagonal socket head screws 2 pieces assembling the motor and gearhead and detach the motor from the gearhead Hexagonal socket head screw Installing the gearhead to the motor 1 Keep the pilot sections of the motor and gearhead in parallel and assemble the gearhead with the motor while slowly rotating it clockwise counterclockwise At this time note so th...

Page 3: ...del EPCR1201 2 Capacitor connection When crimp terminals are used use the FASTON terminals 187 Series TE Connectivity Use the supplied capacitor cap to insulate the capacitor terminal connection Capacitor 187 series Capacitor cap Note For lead wire connection use one lead wire for each individual terminal Connection method to a terminal block Remove the terminal box cover for the terminal box type...

Page 4: ... input power to the motor and protecting the motor coil from burnout Troubleshooting When the motor cannot be operated correctly refer to the contents provided in this section and take appropriate action If the problem persists contact your nearest office Phenomena Check items Motor does not rotate Motor sometimes rotates and stops Check the power supply voltage Connect the power supply and the mo...

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