Oriental motor World K Series User manual

1
Introduction
 Before use
Only qualied personnel should work with the product.
Use the product correctly after thoroughly reading the section “Safety
precautions.”
Should you require the inspection or repair of internal parts, contact the
Oriental Motor oce where you purchased the product.
The product described in this manual has been designed and manufactured
for use in general industrial machinery, and must not be used 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 ammable gases, locations subjected to splashing water, or near
combustibles. Doing so may result in re, electric shock or injury.
•Assign qualied personnel the task of installing, wiring, operating/controlling,
inspecting and troubleshooting the product. Failure to do so may result in
re, electric shock or injury.
•Do 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.
•Do not use the electromagnetic brake for stopping or for safety purposes.
Using it for purposes other than holding the moving parts and motor in
position may cause injury or damage to equipment.
•The motor is ClassⅠequipment. Install the motor so as to avoid contact with
hands, or ground it to prevent the risk of electric shock.
•Install the motor in an enclosure in order to prevent electric shock or injury.
•Keep the input power voltage within the specication to avoid re and
electric shock.
•Connect the cables securely according to the wiring diagram in order to
prevent re and electric shock.
•Do not forcibly bend, pull or pinch the lead wires (cables). Doing so may result
in re and electric shock.
•Be sure to insulate the connection terminal of the capacitor. Failure to do so
may result in electric shock.
•Turn o the power in the event of a power failure, or the motor will 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 o (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 specications, or electric shock, injury or
damage to equipment may result.
•Do not touch the motor during operation or immediately after stopping. The
surface is hot and may cause a burn.
•Do not hold the motor output shaft. This may cause injury.
•Keep the area around the motor free of combustible materials in order to
prevent re or a burn.
•To prevent the risk of damage to equipment, leave nothing around the motor
that would obstruct ventilation.
•To prevent bodily injury, do not touch the rotating parts (output shaft) of the
motor during operation.
•When an abnormality is noted, turn o the power immediately, or re, electric
shock or injury may occur.
•The motor’s surface temperature may exceed 70 °C, even
under normal operating conditions. If a motor is accessible
during operation, post the warning label shown in the gure
in a conspicuous position to prevent the risk of burns. Warning label
•Dispose the product correctly in accordance with laws and regulations, or
instructions of local governments.
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.
•Motor.........................................................................1 unit
•Capacitor..................................................................1 pc. (only for single-phase motors)
•Capacitor cap..........................................................1 pc. (only for single-phase motors)
•Set of mounting bolts .........................................1 set (only for combination type)
Mounting bolts, hexagonal nuts, washers: 4 pcs. each
•Instructions and Precautions for Safe Use ...1 copy
 Checking the model name
Check the model number against the number indicated on the product.
zCombination type
Model*Motor model Capacitor model Gearhead model*
2RK6AMB-oS2RK6GN-AW2MB CH45FAUL2
2GNoS
2RK6FMB-oSCH35FAUL2
2RK6CMB-oS2RK6GN-CW2MB CH10BFAUL
2RK6EMB-oSCH08BFAUL
2IK6SMB-oS2IK6GN-SW2MB −
*The box (o) of the model will be lled with the numeral to represent the
gear reduction ratio.
zPinion shaft type, round shaft type
Model*Motor model Capacitor model
2RK6GN-AW2MBJ 2RK6GN-AW2MB CH45FAUL2
2RK6GN-AW2MBU CH35FAUL2
2RK6GN-CW2MBJ 2RK6GN-CW2MB CH10BFAUL
2RK6GN-CW2MBE CH08BFAUL
2IK6GN-SW2MB 2IK6GN-SW2MB −
*The list above shows pinion shaft motors. For the round shaft motor, “GN” in
the model and motor model are replaced by “A”.
HM-9250-7
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.
World KSeries Terminal Box Type 6 W
Electromagnetic Brake Motors

2
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:
•Inside an enclosure that is installed indoors (provide vent holes)
•Operating ambient temperature
−10 to +40 °C (+14 to +104 °F) (non-freezing)
−10 to +50 °C (+14 to +122 °F) for 100 V/200 V
•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
•1000 m or less above sea level
Note On rare occasions, grease may ooze out from the gearhead. If there
is concern over possible environmental damage resulting from the
leakage of grease, check for grease stains during regular inspections.
Alternatively, install an oil pan or other device to prevent leakage
from causing further damage. Grease leakage may lead to problems
in the customer’s equipment or products.
 Installing the motor
zRound shaft type
Drill holes on the mounting plate and x the motor on the plate using screws,
nuts, and washers (not supplied). Be careful there is no gap between the motor
installation surface and the bracket.
Nominal diameter of screw: M4
Motor
Nut
W
asher
Mounting plate
Mounting screw
Note Do not insert the motor into the mounting hole at an angle or force
it in, as this may scratch the ange pilot section and damage the
motor.
zCombination type
Drill holes on the mounting plate and x the motor and gearhead on the plate
using supplied screws (4 pcs.). Be careful there is no gap between the motor/
gearhead assembly and the installation surface.
Gearhead
Mounting screw
Motor
Nut
W
asher
Mounting plate
 Installing/removing the gearhead
The gearhead can be removed and the cable gland position changed to a
desired 90° direction. The same procedure is followed when replacing the
gearhead.
1. Remove the hexagonal socket head
screws (2 pcs.) assembling the motor and
gearhead and detach the motor from the
gearhead.
Hexagonal socket
head screw
2. Using the pilot sections of the motor and gearhead as guides, install the
gearhead to the motor.
At this time, the cable gland position can be changed to a desired 90°
direction. When installing the gearhead, slowly rotate it clockwise/
counterclockwise to prevent the pinion of the motor output shaft from
contacting the side panel or gear of the gearhead.
This ange surface is constructed to hold a O-ring. If this O-ring comes out
of the ange groove, reseal it correctly on the ange groove.
Also conrm that no gaps remain between the motor ange surface and the
end face of the gearhead’s pilot section.
Gearhead
Motor
Pilot
O-ring
Cable gland
After assembling the motor with the gearhead, install the motor/gearhead
assembly using mounting screws by referring to the explanation under
“Combination type”.
Note
•Do not forcibly assemble the motor and gearhead. Also, do not
let metal objects or other foreign matters enter the gearhead.
The pinion or gear of the motor output shaft may be damaged,
resulting in noise or shorter service life.
•Do not allow dust to attach to the pilot sections of the motor and
gearhead. Grease may leak from inside the gearhead.
•The hexagonal socket head screws used to assemble the motor and
gearhead together only tentatively secure the two components.
Always use the four supplied mounting screws when installing the
motor/gearhead assembly.
 Pinion shaft type
Pinion shaft type motors are used with a gearhead assembled.
Refer to gure above.
 Mounting the capacitor (only for single-phase motors)
Before mounting the provided capacitor, check that
the capacitor’s capacitance matches that stated
on the motor’s name plate. Mount the capacitor
securely by using M4 screws (not provided).
Ø4.3 mm
(Ø0.169 in.)
Note
•Do not let the screw tightening torque exceed 1 N·m (8.8 lb-in) to
prevent damage to the mounting foot.
•Mount 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.

3
Connection
Insulate all the wire connections, such as the connection between the motor
and the capacitor connection.
For safety’s sake, install a breaker or fuse in the power line.
Ground the motor using a Protective Earth Terminal.
The rotation direction is as viewed from the side of the motor’s output shaft.
The motor rotates in a clockwise (CW) and counterclockwise (CCW) direction.
 Rotating direction of the gearhead output shaft
The rotating direction of the gearhead output shaft may be opposite that of
the motor shaft, depending on the gear ratio. Before performing wiring, be sure
to check the rotating direction of the gearhead output shaft to be used and
determine the desired direction of motor rotation.
Gearhead model*
Gear ratio
Same as the rotating
direction of motor shaft
Opposite the rotating
direction of motor shaft
2GNoS3 to 18 25 to 36
50 to 180
*The box (o) of the model will be lled with the numeral to represent the
gear reduction ratio.
 Connection method to a terminal box
When connecting the cable (not supplied), use the following crimp terminal.
zApplicable crimp terminal [unit: mm (in.)]
For terminal block
Insulated round terminal Insulated fork terminal
Ø3.6 (Ø0.142) or mor
e
18 (0.71) or less
7.2 (0.283) or less
3.6 (0.142) or more
18 (0.71) or less
6.4 (0.252) or less
For Protective Earth Terminal
Insulated round terminal
Ø4.1 (Ø0.161) or more
4.5 (0.177) or less
9 (0.354) or less
Terminal block
Terminal cover
Terminal cover
installation screw
(With spring washer)
Cable gland
zLayout of terminals
Tightening nut
Nipple
Protective Earth
Terminal (M4)
Te
rminal block (M3.5)
zRear side of terminal cover
O-ring
Side view
•To ensure safety, ground the motor using the inside the terminal box.
•Use a cable of the following specications:
Applicable cable diameter: Ø12 to 16 mm (Ø0.47 to 0.63 in.)
Applicable lead wire: AWG18 (0.75 mm2) or more
•When sealing the terminal cover, ensure that no scraps or particles get caught
between the contact surfaces.
•This terminal cover is constructed to hold a O-ring. If this gasket comes out of
the cover, please reseal it correctly on the cover.
•Refer to the tightening torque table to determine the appropriate tightening
torque to use when fastening the terminal cover and cable gland.
Loosening and then tightening the nut again may cause the nipple to
become loose. In this case, securely tighten the nipple again to the applicable
torque specied in the table below.
Terminal cover (M3) 0.5 to 0.7 N·m (4.4 to 6.1 lb-in)
Cable gland (tightening nut) 4.8 to 12.0 N·m (42 to 106 lb-in)
Cable gland (nipple) 10 to 12 N·m (88 to 106 lb-in)
Protective Earth Terminal 1.0 to 1.3 N·m (8.8 to 11.5 lb-in)
Terminal block 0.8 to 1.0 N·m (7.0 to 8.8 lb-in)
Note
•To make shielding function fully eective, use a cable of an
appropriate diameter.
•Securely ax the cable exposed outside the motor so that it does
not receive stress.

4
 Wiring diagram
Connect the motor according to the gure. The direction of motor rotation
is as viewed from the side of the motor’s output shaft. The motor rotates in a
clockwise (CW) and counterclockwise (CCW) direction.
zLayout of terminals
Single-phase motor
Terminal blockProtective Earth Terminal
Three-phase motor
Terminal blockProtective Earth Terminal
zWiring the single-phase motor
U2
U1
Z2
MB
MB
T
he motor rotates in the clockwise direction
if the switch (SW2) is connec
ted to the CW side,
and it rotates in the counterclock
wise direction
if connec
ted to the CCW side.
Po
wer
supply
Grounding
N
L
R0C0
SW1
ON
ON
R0C0
R0C0
SW2 CCW
CW
R0C0
CW
zWiring the three-phase motor
V
MB
U
W
MB
The motor rotates in the clock
wise direction (CW)
if connec
ted as the connection diagram below.
To
change the direction of rotation, change any
tw
o connections between R, S and T.
Po
wer supply
Grounding
L1 (R)
L2 (S)
L3
(T)
SW1
R0C0
R0C0
R0C0
CW
Switch
No.
Input specication
Note
Single-phase
100V/110 V/
115V input
Single-phase
200V/220 V/
230V input
Three-phase
200V/220 V/
230V input
SW1 125 VAC
3 A or more
Inductive load
250 VAC
1.5 A or more
Inductive load
250 VAC
1.5 A or more
Inductive load
Switched
simultaneously
SW2 − −
In order to protect the relay contacts, a CR circuit ( ) must be connected.
Refer to the wiring diagram.
R0=5 to 200 Ω
C0=0.1 to 0.2 μF 250 WV
Peripheral equipment surge absorber is available (sold separately).
Model: EPCR1201-2
 Capacitor connection (only for single-phase motors)
When crimp terminals are used, use the FASTON terminals 187 Series (TE
Connectivity).
Use the supplied capacitor cap to insulate the
capacitor terminal connection.
The capacitor has four terminals that are internally
connected as shown in the gure.
Capacitor
187 series
Capacitor ca
p
<Capacitor internal wiring diagram>
187 series
Note For lead wire connection, use one lead wire for each individual
terminal.
 Simplied connection
Note Wiring cannot be simplied for vertical drive applications or three-
phase motors.
If the “RUN/STOP” operation of the motor and “RUN/STOP” operation of the
electromagnetic brake are controlled via a single switch (contact), connect the
lead wires as shown in the gure below.
Note that the motor’s magnetic energy aects the electromagnetic brake
windings, resulting in a longer braking time than that of the basic wiring by
approximately 50 ms and thus increased overruns.
U2
Z2
MB
Grounding
U1
MB
Po
wer
supply
L
R0C0
SW2 CCW
CW
R0C0
N
R0C0
SW1 ON
CW

5
Operation
Note
•Make sure that the motor case temperature does not exceed 90 °C
(194 °F) during operation of 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.
Thermal Class: 130 (B)
•Single-phase motors use a capacitor and keep it connected even
after rotation of the motor has started.
Timing chart of SW1 and SW2
This timing chart is case of the basic connection (shown in page 4).
Run Brake BrakeRun
SW2
CCWCW
OFF ON ONOFF OFF
CW CW
CCW
SW1
Motor
 RUN/STOP
SW1 operates motor and electromagnetic brake action.
Motor will rotate when SW1 is switched simultaneously to ON (short circuit).
When SW1 is switched simultaneously to OFF (open), the motor stops
immediately by electromagnetic brake and holds the load.
Note When operating the electromagnetic brake, there may be a scraping
noise because this braking system uses friction, but this is not a
problem.
The load may move downward in vertical drive applications. Check the position
of the load prior to operation.
 Direction of rotation
zSingle-phase motor
To rotate the motor in a clockwise (CW) direction, switch SW2 to CW.
To rotate it in a counter-clockwise (CCW) direction, switch SW2 to CCW.
zThree-phase motor
When connected according to the connection diagram, the motor will operate
in the clockwise direction (CW) as viewed from the motor’s output shaft.
To change the direction of rotation, change any two connections between R, S
and T.
 Other operation
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 brake terminals (MB). The electromagnetic brake is
released and the motor shaft can be free.
Time rating
zInduction motors
Induction motors have a continuous rating.
zReversible motors
Reversible motors have a 30 minutes rating. (“30 min” is indicated on the
nameplate.)
Locked rotor burnout protection
The motor is equipped a function of overheat protection for when the motor
output shaft is locked.
 Impedance protection
“ZP” is stamped on the motor nameplate. The motor has higher coil impedance.
When the motor goes into locked rotor condition due to a malfunction, coil
impedance rises, suppressing 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 oce.
Phenomena Check items
Motor does not rotate
or rotates slowly.
•Check the power supply voltage.
•Connect the power supply and the motor correctly.
•With a single-phase motor, connect the supplied
capacitor correctly.
•If terminal blocks or crimp terminals are used, check
them for poor connection.
•Keep the load at or below the allowable value.
•Check the voltage applied to the brake terminal (MB).
Motor sometimes
rotates and stops.
•Connect the power supply and the motor correctly.
•With a single-phase motor, connect the supplied
capacitor correctly.
•If terminal blocks or crimp terminals are used, check
them for poor connection.
The motor rotates
in the direction
opposite to the
specied direction.
•Connect correctly by referring to wiring diagram.
•With a single-phase motor, connect the supplied
capacitor correctly.
•The rotating direction of the motor output shaft may
be dierent from that of the gearhead output shaft
depending on the gear ratio of the gearhead. See
"Rotating direction of the gearhead output shaft" on
page 3.
•The rotating direction is indicated as viewed from the
motor output shaft. Check the reference direction.
Motor temperature
abnormally high
[Motor case
temperature exceeds
90 °C (194 °F)]
•Check the power supply voltage.
•With a single-phase motor, connect the supplied
capacitor correctly.
•Review the ventilation condition.
Noisy operation
•To replace the gearhead, assemble the motor and
gearhead correctly by referring to the operating
manual for the gearhead.
•Assemble a gearhead of the same pinion type as the
motor.

•Unauthorized reproduction or copying of all or part of this manual is
prohibited.
•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.
© Copyright ORIENTAL MOTOR CO., LTD. 2007
Published in January 2023
6
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
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 with the marks under the following directives.
zLow Voltage Directive
Installation conditions
Overvoltage categoryⅡ, Pollution degree 3 (excluding the motor installation
surface of pinion shaft type and round shaft type), ClassⅠequipment (for EN
standards)
When the machinery to which the motor is mounted requires overvoltage
categoryⅢ, connect to power supply via an isolation transformer.
 Electrical appliance and material safety law
The three-phase round shaft motor type bears a mark.
Measurement of noise power and noise terminal voltage, as required by the
electrical appliance and material safety law is conducted with a mains lter
connected. For the mains lter, use the following product or equivalent.
Manufacturer Three-phase 200-230 V
Schaner EMC FN3025HP-10-71
SOSHIN ELECTRIC CO.,LTD HF3010C-SZA
 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).