Oriental motor K II Series User manual

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HM-9450
Operating Manual
KⅡSeries
Three-phase power supply input
Induction Motors
Electromagnetic Brake Motors
1. Introduction ..................................................................1
2. Safety precautions .......................................................2
3. Preparation....................................................................3
4. Installation.....................................................................4
5. Connection ....................................................................7
6. Operation.......................................................................9
7. Time rating.....................................................................9
8. Maintenance and inspection......................................9
9. Locked rotor burnout protection ............................10
10. Troubleshooting .........................................................10
11. Regulations and standards.......................................11
Table of contents
1. Introduction
Before using the motor
Only qualied 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.
Overview of the product
Products described in this manual are induction motors, electromagnetic brake motors of the KⅡSeries.
Use a pinion shaft type motor in combination with a parallel shaft GV gearhead.
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.

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2. 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 ammable gases, in places subjected to splashing water, or near
combustibles. Doing so may result in re, electric shock or injury.
•Only qualied and educated personnel should be allowed to perform installation, connection, operation and inspection/troubleshooting of the product.
Doing so may result in re, electric shock, injury or damage to equipment.
•Do not transport, install, connect or inspect the product while the power is supplied. Always turn o the power before carrying out these operations.
Electric shock or damage to equipment may result.
•Do not use the electromagnetic brake of the electromagnetic brake motor as a safety brake. Take safety measures other than the electromagnetic brake.
Failure to do so may result in injury or damage to equipment.
•Turn 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 motor will start abruptly when the overheat protection device (thermal protector) is automatically reset.
•In the event the overheat protection device (thermal protector) of the electromagnetic brake motor is triggered, the load will not be held in position.
A safety device should be provided separately. Failure to do so may result in injury or damage to equipment.
•The motor is ClassⅠequipment. Install the motor so avoid contact with hands, or ground it to prevent the risk of electric shock. Failure to do so may
result in electric shock.
•Keep the input power voltage within the specied range. Failure to do so may result in re or electric shock.
•Securely connect the cables in accordance with the connection diagram. Failure to do so may result in re or electric shock.
•Do not forcibly bend, pull or pinch the lead wire or cable. Doing so may result in re, electric shock or damage to equipment.
•Turn o 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 disassemble or modify the motor. This may result in electric shock, injury or damage to equipment. Refer all such internal inspections and repairs
to the branch or sales oce from which you purchased the product.
CAUTION
•Do not use the motor beyond the specications. Doing so may result in re, electric shock, injury or damage to equipment.
•Do not lift up the motor by holding the output shaft, lead wire or cable. Doing so may result in injury.
•Do not touch the motor output shaft (end or pinion) with bare hands. Doing so may result in injury.
•Keep the area around the motor free of combustible materials. Failure to do so may result in re or a skin burn(s).
•Do not leave anything around the motor that would obstruct ventilation. Doing so may result in damage to equipment.
•Provide a cover over the rotating part (output shaft). Failure to do so may result in injury.
•Do not touch the motor while operating or immediately after stopping. The surface of the motor is hot and it may cause a skin burn(s).
•Do not touch the rotating parts (output shaft, cooling fan) while operating the motor. Doing so may result in injury.
•When an abnormality is noted, turn o the power immediately. Failure to do so may result in re, electric 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 motor in operation, attach a warning label in a conspicuous position as shown in the gure.
Failure to do so may result in a skin burn(s). Warning label

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3. Preparation
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.
zMotor
Motor..........................................................................................1 unit
Instructions and Precautions for Safe Use ....................1 copy
zParallel shaft GV gearhead (sold separately)
Gearhead ..................................................................................1 unit
Screw set...................................................................................1 set
Hexagonal socket head screw, plain washer, spring washer: 4 pieces each
Hexagonal socket head screws for assembling motor: 2 pieces
Parallel key: 1 piece
Checking the model nameModel Name
Check the model names of the motor and the gearhead against the model name described on each nameplate.
Motor
Gearhead
Protective Earth Terminal
zInduction Motor
zElectromagnetic Brake Motor
Model Applicable gearhead Degree of
Protection Model Applicable gearhead Degree of Protection
Model Gear ratio Model Gear ratio
4IK25GV-SW 4GVB 2 to 360
IP20
4IK25GV-SWM 4GVB 2 to 360 IP20
5IK40GV-SW 5GVB 2 to 300 5IK40GV-SWM 5GVB 2 to 300
5IK60GVH-SW 5GVHB 2 to 300 5IK60GVH-SWM 5GVHB 2 to 300 IP40
5IK90GVR-SW 5GVRB 3 to 180 5IK90GVR-SWM 5GVRB 3 to 180
: Enter a number representing the gear ratio of the gearhead.
A decimal gearhead can be assembled with 25 W to 40 W motors.
Combination of motors and gearheads
Combine a motor and a gearhead having the same frame size and pinion shaft type as shown below.
<Example>
5 IK40 GV -SW 5 GV 25B
Pinion type
Frame size
• Motor model • Gearhead model

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4. Installation
Location for installation
Install it in a well-ventilated location that provides easy access for inspection.
•Inside an enclosure that is installed indoors (provide vent holes)
•Operating ambient temperature* Three-Phase 200 V: –10 to +50 °C (+14 to +122 °F) (non-freezing)
Three-Phase 220/ 230 V: –10 to +40 °C (+14 to +104 °F) (non-freezing)
* The lowest temperature is 0 °C (+32 °F) for gearheads of the gear ratio 2and 3.
•Operating ambient humidity: 85% or less (non-condensing)
•Area that is free from an explosive atmosphere or toxic gas (such as sulfuric gas) or liquid
•Area not exposed to direct sun
•Area free of excessive amount dust, iron particles or the like
•Area not subject to splashing water (storms, water droplets), oil (oil droplets) or other liquids
•Area free of excessive salt
•Area not subject to continuous vibration or excessive shocks
•Area free of excessive electromagnetic noise (from welders, power machinery, etc.)
•Area free of radioactive materials, magnetic elds or vacuum
•Altitude Up to 1000 m (3300 ft.) above sea level
Note On rare occasions, grease may ooze out from the gearhead.
If there is a concern over possible environmental damage resulting from the leakage of grease, provide an oil tray or similar oil catching
mechanism in order not to cause a secondary damage.
Grease leakage may lead to problems in the customer's equipment or products.
Installation method
Note Do not install the motor to the mounting hole diagonally or assemble the motor forcibly. Doing so may cause damage to the motor.
zAssembling 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 that the pinion of the motor output shaft does not hit the gearhead or gears strongly.
The position assembling a gearhead can be changed to a desired 90° direction with respect to a motor.
2. Check no gaps remain between the motor and gearhead, and tighten them with hexagonal socket head screws for assembling motor (2pieces).
Motor output shaft
Pilot section
Assemble the gearhead to the motor in a condition
where the motor output shaft is in an upward direction.
Hexagonal socket head screws for assembling motor*
Gearhead model Screw size Tightening torque
[N·m (lb-in)]
4GVBM2.6 0.4 (3.5)
5GVB
5GVHB
5GVRB
M3 0.6 (5.3)
* Included with gearheads (sold separately)
Note
•Do not forcibly assemble the motor and gearhead. Also, prevent metal objects or foreign substances from entering in the gearhead.
The pinion of the motor output shaft or gear may be damaged, resulting in noise or shorter service life.
•O-rings are attached on the motor pilot section and the mounting surface of the decimal gearhead. Install the gearhead so as not to pinch
the O-rings. Grease in the gearhead may leak.

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zAssembling the gearhead to the motor
Secure the motor with mounting screw set (supplied) through the four mounting holes provided.
Do not leave a gap between the motor and mounting plate.
When using a decimal gearhead, install it using the included mounting screw set.
Motor
Hexagonal socket
head screw
Gearhead
Mounting plate
Spring washer
Plain washer Included with gearhead
s
Mounting screw*
Model Gear ratio
Hexagonal socket head screw
(Material: Stainless steel) L2 [mm (in.)] Tightening torque
[N·m (lb-in)]
MotorGearhead
(L2)
L1
Screw size L1 [mm (in.)]
4IK25
2, 3, 30 to 120
M6
65 (2.56) 9 (0.35)
5.0 (44)
5to 25 60 (2.36) 9 (0.35)
150 to 360 70 (2.76) 9 (0.35)
5IK40
2, 3, 25 to 100
M8
85 (3.35) 16 (0.63)
12.0 (106)
5to 18 70 (2.76) 14 (0.55)
120 to 300 90 (3.54) 15 (0.59)
5IK60
2, 3, 25 to 100 85 (3.35) 16 (0.63)
5to 18 70 (2.76) 14 (0.55)
120 to 300 90 (3.54) 15 (0.59)
5IK90
3, 18 to 36 85 (3.35) 16 (0.63)
5to 15 70 (2.76) 14 (0.55)
50 to 180 95 (3.74) 14 (0.55)
* Included with gearheads (sold separately)
zMotor with cooling fan
When installing a motor with cooling fan onto a device, leave 10 mm (0.39 in.) or more behind the fan cover or open a ventilation hole so that the cooling
inlet on the back of the motor cover is not blocked.

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Installing a load
The gearhead shaft is provided with a key slot for connecting the transmission parts.
When connecting the transmission parts, ensure that the shaft and parts have a clearance t, and always x the parallel key to the output shaft with a
screw to prevent the parts from rattling or spinning.
Screw
Parallel key
Gearhead output shaft
Note Do not apply excessive force onto the output shaft of the gearhead using a hammer or other tools. Doing so may cause damage to the output
shaft or bearings.
zWhen using the output shaft end tapped hole of a gearhead
Use a tapped hole provided at the end of the output shaft as an auxiliary means for preventing the transfer mechanism from disengaging.
Gearhead model Output shaft end tapped hole Fixed screw
Screw
Spacer
Transmission parts
4GVBM5, Eective depth 10 mm (0.39 in.)
5GVB
5GVHB
5GVRB
M6, Eective depth 12 mm (0.47 in.)
Changing direction of the cable outlet
In the case of 60 W and 90 W motors, the cable outlet position is set toward the direction of the motor output shaft at the time of shipment.
The direction of the cable outlet position can be changed by 180 degrees. Change the direction according to the following steps.
1. Remove the screws of the cable clamp, and remove the upper unit of the cable clamp. M3
Hexagonal socket head screw
s
Cable clamp
Cable
2. Change the direction of the cable by 180 degrees, and turn the cable clamp by 180 degrees.
3. Install the upper unit of the cable clamp and x it with screws.
Tightening torque of screw: 0.5 to 0.7 N·m (4.4 to 6.1 lb-in)

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5. Connection
Insulate all the wire connections, such as the connection between the motor and the capacitor connection.
For motors with electromagnetic brakes, install a breaker on the power line for safety.
zConnecting the Protective Earth Terminal
Be sure to ground the motor using the Protective Earth Terminal on the motor.
Use a crimp terminal described below for grounding.
Applicable crimp terminal: Insulated round crimp terminal
Terminal screw size: M4
Tightening torque: 1.0 to 1.3 N·m (8.8 to 11.5 lb-in)
Applicable minimum lead wire size: AWG18 (0.75mm2) or thicker
[Unit: mm (in.)]
Ø4.1 (0.16) or more
4.8 (0.19) or less
9.5 (0.37) or less
Note Be sure to use the screw for grounding attached on the product.
Rotation direction of the gearhead output shaft
The rotation direction of the gearhead output shaft varies with that of the motor output shaft depending on the gear ratio of the gearhead. Check the
motor model name and the gear ratio before connecting.
Models for the gear ratio rotate as shown in the connection Connection diagram.
Models for the gear ratio rotate in the opposite direction from the connection Connection diagram.
Gearhead
model Gear Ratio
4GVB 2 3 5 6 7.5 9 12.5 15 18 25 30 36 50 60 75 90 100 120 150 180 250 300 360
5GVB
5GVHB2 3 5 6 7.5 9 12.5 15 18 25 30 36 50 60 75 90 100 120 150 180 250 300 -
5GVRB-3 5 6 7.5 9 12.5 15 18 25 30 36 50 60 75 90 100 120 150 180 - - -
When a decimal gearhead is connected to a gearhead, the rotation speed of the output shaft will be one-tenth. The rotation direction is the same.
Connection diagram
zInduction motor
The motor rotates in the clockwise direction (CW) if connected as the connection diagram below.
To change the direction of rotation, change any two connections between R, S and T.
White
Black
Red
Po
wer supply
Groundin
g
L1 (R
)
L2 (S)
L3
(T)
R0C0
R0C0
R0C0
CW

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zElectromagnetic brake motor
Note In case of 60 W type and 90 W type, when removing the sheath of the cable, be careful not to damage the inside lead wire.
The motor rotates in the clockwise direction (CW) if connected as the connection diagram below.
To change the direction of rotation, change any two connections between R, S and T.
SW1
R0C0
R0C0
R0C0
L1
（R）
L2
（S）
L3
（T）
White
Orange
Red
Black
Orange
Po
wer supply Groundin
g
CW
Specications of SW1
Output Power Contact capacity of switch Note
Three-phase 200 V/220 V/230 VAC
25 W 250 VAC, 1.5 A or more
Inductive load Switched simultaneously
40 W to 90 W 250 VAC, 5 A or more
Inductive load
zProtection of contact (switch)
If the switch is used for starting/stopping the motor or switching the rotation direction, connect the CR circuit for surge suppression in order to protect
the contacts.
R0C0R0 = 5 to 200 Ω
C0 = 0.1 to 0.2 μF 250 VAC
It is provided as a peripheral equipment (sold separately).
Model: EPCR1201-2

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6. Operation
The motor rotates when the power supply is turned on.
For protection against electric shock, do not turn on the power supply until the wiring is complete.
Note
•Make sure that the motor case temperature does not exceed 90 °C (194 °F) when operating the motor. Operation exceeding case
temperature 90 °C (194 °F) may signicantly deteriorate the coils and ball bearings of the motor and shorten the motor's life span. Motor
case temperature can be measured by xing a thermometer on the motor surface. It can also be measured using thermo tape or a
thermocouple.
•To change rotation direction of the motor, wait until the motor completely stops. Otherwise its direction may not change or may take much
time to change.
•Care should be taken when using in a low-temperature environment as the transmission eciency will drop along with the output torque.
Starting and stopping for electromagnetic brake motors
SW1 is used for“Operation-Stop”of the motor.
Turning SW1 ON releases the electromagnetic brake to rotate the motor. Turning SW1 OFF actuates the electromagnetic brake to stop the motor.
Note The electromagnetic brake is a friction type. Friction noise may occur when the electromagnetic brake is actuated, but this is not a problem.
A load may fall if the product is used in vertical drive. Operate it after thoroughly checking the load condition.
zShortening the motor’s starting time
If the electromagnetic brake is left release, the motor can be started much faster.
Optimum timing for release of the brake is at least 10 ms before starting up the motor.
zReleasing electromagnetic brake
If you wish to release the brake while the motor is stopped, apply voltage between only the two orange lead wires. The electromagnetic brake is released
and the motor shaft can be rotated easily by hand.
7. Time rating
Continuous operation is possible (continuous rating).
8. Maintenance and inspection
Inspection
It is recommended that periodic inspections would be conducted for the items listed below after each operation of the motor.
If an abnormal condition is noted, discontinue any use and contact your nearest Oriental Motor sales oce.
Inspection item
•Check if any of the mounting screws of the motor and gearhead are loose.
•Check if the bearing part (ball bearings) of the motor generates unusual noises.
•Check if the bearing part (ball bearings) or gear meshing part of the gearhead generates unusual noises.
•Check if the output shaft of the motor and gearhead and a load shaft are out of alignment.
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.

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9. Locked rotor burnout protection
The motor is equipped with a protective function to prevent the motor from burning when the output shaft is locked.
Thermal protection
"TP" is stamped on the motor nameplate. The motor has an "auto reset" type thermal protector built into its motor coil. When the motor reaches a
predetermined temperature, the internal thermal protector is activated and the motor is stopped.
Always turn the power o before performing inspections.
Thermal protector activation range:
Power is turned o at 130±5 °C (266±9 °F)
Power is turned back on at 85±20 °C (185±36 °F)
10. Troubleshooting
When the motor cannot be operated properly, refer to the contents described in this section and take an appropriate remedial action. If the problem
persists, contact your nearest oce.
Condition Check item Remedial action
A motor does not rotate.
A motor may not rotate.
Check if the correct voltage is applied. Verify the voltage specications with the nameplate of the motor,
and apply the suitable voltage.
Check if the power supply and the motor are connected
properly. Refer to the connection diagram, and connect properly.
Check if there is disconnection or improper connection. Check the connection for the wiring, terminal block, and crimp
terminals, and connect properly.
Check if an overload is occurred. Reduce a load.
(For electromagnetic brake motors)
Check if the electromagnetic brake is released.
Refer to the connection diagram. Connect the lead wires
(orange) for electromagnetic brake properly and release the
electromagnetic brake.
The motor rotates in
the reverse direction.
Check if the power supply and the motor are connected
properly. Refer to the connection diagram, and connect properly.
(When a gearhead is used)
Check if the gear ratio that causes the gearhead output
shaft to rotate in the opposite direction to the motor
output shaft is used.
Check the rotation direction of the motor output shaft and that of
the gearhead output shaft, and perform connection properly.
Check if the direction viewed is correct.
The rotation direction represents that when viewed from the
motor output shaft side. Check the direction from which the
product is viewed.
The motor becomes
unusually hot.
[The motor case
temperature exceeds
90°C (194 °F).]
Check if the correct voltage is applied. Verify the voltage specications with the nameplate of the motor,
and apply the suitable voltage.
Check if an overload is occurred. Reduce a load.
Check if the ambient temperature exceeds the operating
range. Reconsider the ventilation condition.
Check if operating and stopping the motor are repeated
in a short cycle. Check if operated exceeding the rating of
specications.
Reconsider the operating cycle such as extending the stop time.
Perform forced cooling using a fan or reconsider the ventilation
conditions.
Noise is generated.
Check if the type o pinion for the motor and gearhead
is the same.
Refer to“Assembling the motor and gearhead” on p.6, and
assemble a gearhead having the same type of pinion as the
motor pinion shaft.“Combination of motors and gearheads”on
the p.3
(When a gearhead is used)
Check if the sound becomes smaller when a load is
increased.
If the sound becomes smaller when a load is increased, it may be
due to backlash of the gearhead. The noise can be suppressed if a
friction load is applied.

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11. Regulations and standards
UL Standards, CSA Standards
This product is recognized by UL under the UL and CSA Standards.
CE Marking
This product is axed the CE Marking under the Low Voltage Directive.
zLow Voltage DirectiveVoltage
Installation conditions
Overvoltage categoryⅡ, Pollution degree 2, ClassⅠequipment
If the overvoltage categoryⅢand pollution degree 3 are required for the equipment, install the motor in an enclosure whose degree of protection is
equivalent to IP54 or higher, and supply a rated voltage to the motor via the insulation transformer.
RoHS Directive
This product does not contain the substances exceeding the restriction values.
China Compulsory Certication System (CCC System)
This product is axed with the CCC Mark under the China Compulsory Certication System.
It is also certied by the China Quality Certication Center (CQC).

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•Unauthorized reproduction or copying of all or part of this manual is prohibited.
If a new copy is required to replace an original manual that has been damaged or lost, please contact your nearest Oriental Motor branch or sales oce.
•Oriental 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.
•Characteristics, specications and dimensions are subject to change without notice.
•While 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.
•is a registered trademark or trademark of Oriental Motor Co., Ltd., in Japan and other countries.
Other product names and company names mentioned in this manual may be registered trademarks or trademarks of their respective companies and
are hereby acknowledged. The third-party products mentioned in this manual are recommended products, and references to their names shall not be
construed as any form of performance guarantee. Oriental Motor is not liable whatsoever for the performance of these third-party products.
© Copyright ORIENTAL MOTOR CO., LTD. 2023
Published in January 2023
• Please contact your nearest Oriental Motor oce for further information.
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echnical Support Tel:[phone]
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)
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f, Germany
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echnical Support Tel:[phone]
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araday Oce Park, Rankine Road,
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, Hampshire RG24 8QBUK
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el:[phone]
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el:[phone]
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o
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