Oriental motor US Series User manual

HM-9218-6
Speed Control Motor and Control Unit Package
US Series
•110 V/115 V type
•220 V/230 V type
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.
Table of Contents
1 Precautions .......................................................... 2
2 Checking the package contents .................. 4
2.1 Checking the contents ..............................................4
2.2 Checking the product name and
motor-control unit combination...........................5
3 Installation ........................................................... 6
3.1 Installation conditions...............................................6
3.2 Mounting the motor ..................................................6
3.3 Installing the control unit.........................................7
3.4 Installing the capacitor
(when using a motor with a capacitor) ...............8
3.5 Installing and wiring in compliance with
EMC directive................................................................8
4 Connection ........................................................10
5 Operation ...........................................................11
5.1 Starting, Changing speeds, Stopping............... 11
5.2 Operating the motor in one direction.............. 12
5.3 Switching between rotation directions ........... 12
5.4 Extension cables....................................................... 13
6 Characteristics ..................................................14
7 Locked rotor burnout protection of
motor ...................................................................14
8 Troubleshooting ..............................................15

Precautions
−2−
1 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
General
•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.
•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 fan will start abruptly when the overheat protection device (thermal
protector) is automatically reset.
Installation
•The motor is ClassⅠequipment. Install the motor and control unit 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.
Connection
•Keep the control unit’s 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 cable. Doing so may re and electric shock.
•To prevent electric shock, be sure to install the terminal cover over the control unit’s terminals after making
connections.
•Do not remove the covers attached to the 60 W and 90 W type capacitors.
•The control unit is not equipped with overcurrent protection. Install a device for overcurrent protection (e.g. circuit
breaker) before connecting the unit to the power supply. Failure to do so may result in re.
Operation
•Turn o the control unit 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.
Maintenance and inspection
•Do not touch the connection terminals of the control unit and capacitor immediately after the power is turned o (for a
period of 10 seconds). The residual voltage may cause electric shock.
Repair, disassembly and modication
•Do not disassemble or modify the motor or control unit. 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.

Precautions
−3−
CAUTION
General
•Do not use the motor and control unit beyond their specications, or electric shock, injury or damage to equipment
may result.
•Keep your ngers and objects out of the openings in the motor, 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 skin
burn(s).
Transportation
•Do not hold the motor output shaft or motor cable. This may cause injury.
Installation
•Keep the area around the motor and control unit free of combustible materials in order to prevent re or a skin burn(s).
•To prevent the risk of damage to equipment, leave nothing around the motor and control unit that would obstruct
ventilation.
•The motor should be rmly secured on the metallic plate in order to prevent injury and damage to the equipment.
•Provide a cover over the rotating parts (output shaft) of the motor to prevent injury.
Connection
•Install a ground-leakage breaker. Failure to do so may result in re.
Operation
•Use a motor and control unit only in the specied combination. An incorrect combination may cause a re.
•Provide an emergency-stop device or emergency-stop circuit external to the equipment so that the entire equipment
will operate safely in the event of a system failure or malfunction. Failure to do so may result in injury.
•Immediately when trouble has occurred, stop running and turn o the control unit power. Failure to do so may result in
re, electric shock or injury.
•Before turning on the power to the control unit, set the RUN/STAND-BY switch to STAND-BY and the speed
potentiometer to LOW.
•To prevent bodily injury, do not touch the rotating parts (output shaft and cooling fan) of the motor during operation.
•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 skin burn(s). Warning label
Disposal
•Dispose the product correctly in accordance with laws and regulations, or instructions of local governments.

Checking the package contents
−4−
2 Checking the package contents
2.1 Checking the contents
Make sure that you have received all of the items listed below.
If an accessory is missing or damaged, contact the nearest ORIENTAL MOTOR oce.
•Motor ....................................................................................1 unit
•Control unit.........................................................................1 unit
•Control unit mounting screw (M3) set......................1 set
(Screws, spring washers, nuts 4 pcs. each)
•This operation manual....................................................1 copy
Standards and CE marking
Motors and Control units have been designed and inspected according to the following standards.
Recognized name is motor model name and control unit name.
Voluntary display of the CE mark conforming to the Low Voltage Directives.
Motors Control units
Standards
UL 1004-1, UL 1004-2, UL 1004-3
CSA C22.2 No.100, CSA C22.2 No.77
GB/T 12350
UL 508
CSA C22.2 No.14
Applications for standards EN 60034-1, EN 60034-5, EN 60664-1, EN 60950-1 EN 50178, EN 60950-1
Certication body
UL File No.E64199 (6 W type)
UL File No.E64197 (15 to 90 W type)
CQC
UL File No.E91291
Installation conditions
Overvoltage categoryⅡ, Pollution degree 2, ClassⅠ(For EN Standards)
When the machinery to which the motor is mounted requires overvoltage categoryⅢand
pollution degree 3 specications, install the motor in a cabinet that comply with IP54 and
connect to power supply via an isolation transformer.
A Running Heating Test and a Locked-Rotor Test has been conducted with an aluminum radiation plate of size indicated
below.
For the motor with a gearhead, tests has been conducted with a gearhead instead of the radiation plate.
Motor frame size [mm (in.)] Size [mm (in.)] Thickness [mm (in.)] Material
60 (2.36) 115×115 (4.53×4.53)
5 (0.20) Aluminum
70 (2.76) 125×125 (4.92×4.92)
80 (3.15) 135×135 (5.31×5.31)
90 (3.54), 40 W type 165×165 (6.50×6.50)
90 (3.54), 60 W and 90 W type 200×200 (7.87×7.87)
Note To ensure conformance with EMC directive be sure to conduct EMC measures with the product assembled in
your equipment by referring to "3.5 Installing and wiring in compliance with EMC directive" on page 8.
RoHS Directive
The products do not contain the substances exceeding the restriction values of RoHS Directive (2011/65/EU).

Checking the package contents
−5−
2.2 Checking the product name and motor-control unit combination
This product comes in a combined set consisting of a motor and a control unit. When the product rst arrives, check the
nameplates to conrm that you have received the correct motor and control unit combination.
•Model name is not the recognized name under the various safety standards.
Recognized name is motor model name and control unit name.
•The gear ratio appears at the position in the model number indicated by the box ().
110 V/115 V type
Model Motor model Control unit model Capacitor type Compatible gearhead model (sold separately)
US206-401U2 USM206-401W2 USP206-1U2
Internal
2GNS, 2GNK
US206-001U2 USM206-001W2 −
US315-401U2 USM315-401W2 USP315-1U2 3GNS, 3GNK
US315-001U2 USM315-001W2 −
US425-401U2 USM425-401W2 USP425-1U2 4GNS, 4GNK, 4GNRH, 4GNRA
US425-001U2 USM425-001W2 −
US540-401U2 USM540-401W2 USP540-1U2 5GNS, 5GNK, 5GNRH, 5GNRA
US540-001U2 USM540-001W2 −
US560-501U2 USM560-501W-1 USP560-1U2
External
5GUKB, 5GURH, 5GURA
US560-001U2 USM560-001W-1 −
US590-501U2 USM590-501W-1 USP590-1U2 5GUKB, 5GUKBH, 5GURH, 5GURA
US590-001U2 USM590-001W-1 −
220 V/230 V type
Model Motor model Control unit model Capacitor type Compatible gearhead model (sold separately)
US206-402E2 USM206-402W2 USP206-2E2
Internal
2GNS, 2GNK
US206-002E2 USM206-002W2 −
US315-402E2 USM315-402W2 USP315-2E2 3GNS, 3GNK
US315-002E2 USM315-002W2 −
US425-402E2 USM425-402W2 USP425-2E2 4GNS, 4GNK, 4GNRH, 4GNRA
US425-002E2 USM425-002W2 −
US540-402E2 USM540-402W2 USP540-2E2 5GNS, 5GNK, 5GNRH, 5GNRA
US540-002E2 USM540-002W2 −
US560-502E2 USM560-502W-1 USP560-2E2
External
5GUKB, 5GURH, 5GURA
US560-002E2 USM560-002W-1 −
US590-502E2 USM590-502W-1 USP590-2E2 5GUKB, 5GUKBH, 5GURH, 5GURA
US590-002E2 USM590-002W-1 −

Installation
−6−
3 Installation
3.1 Installation conditions
Install the motor and control unit in a location that meets the following conditions.
Using the unit in a location that does not satisfy these conditions could damage it.
•Indoors (this product is designed and manufactured to be installed within another device)
•Ambient temperature Motor: −10 to +40 °C (+14 to +104 °F) (non-freezing)
Control unit: 0 to +40 °C (+32 to +104 °F) (non-freezing)
•Ambient humidity: 85% max. (non-condensing)
•Area that is free of explosive atmosphere or toxic gas (such as sulfuric gas) or liquid
•Area not exposed to direct sun
•Area free of excessive amount of dust, iron particles or the like
•Area not subject to splashing water (rain, water droplets), oil (oil droplets) or other liquids
•A place where heat can escape easily
•Area not subject to continuous vibration or excessive shocks
•1000 m or less above sea level
3.2 Mounting the motor
Round shaft motors
1. Drill holes in the mounting plate that match the screws and the motor’s dimensions.
2. Use screws, washers, and nuts listed below to fasten the motor to the mounting plate. Make sure that no gaps are left
between the motor and the surface of the mounting plate.
Use screws of an appropriate length.
Motor
Mounting
Screw
Mounting plate
Nut
Washer
Mounting screws
Motor frame size [mm (in.)] Screw size Tightening torque [N·m (lb-in)]
60 (2.36) M4 2.0 (17.7)
70 (2.76) M5 2.5 (22)
80 (3.15) M5 2.5 (22)
90 (3.54) M6 3.0 (26)
Note Do not insert the motor into the mounting hole at an angle or force it in, as this could scratch the ange and
damage the motor.
Pinion shaft motor
1. Drill holes in the mounting plate that match the screws and the
gearhead’s dimensions.
2. Attach the motor and gearhead using the screws supplied with the
gearhead (sold separately). Attach by using the pilot section as a guide
and rotating the gearhead gently left and right, being careful that the
shaft’s gear pinion section does not strike the gearhead side plate (metal
plate) or gears strongly.
3. Fasten the screws supplied with the gearhead to the mounting plate.
Attach so that no gaps are left between the motor ange surface and
the gearhead pilot section end surface.
Motor
Gearhead
Screw provided
with gearhead
Mounting plate
Nut
Washer
Refer to the gearhead operation manual for further details concerning mounting (gearhead sold separately).
Mounting bracket is available as an option (sold separately).
Note
•Conrm gearhead compatibility by checking the table in section "2.2 Checking the product name and
motor-control unit combination" on page 5.
•Keep the motor and gearhead’s pilot section free of dirt, as the presence of dirt can result in inadequate
fastening and cause grease to leak from the gearhead.
•Scratches and dents on the gears can cause unusual sounds.

Installation
−7−
Motor with cooling fan
When mounting a motor with a cooling fan onto a device, open a ventilation
hole or leave 10 mm (0.4 in.) or more behind the fan cover so that the
cooling inlet on the back of the motor cover is not blocked.
The cooling fan does not always operate while the motor is running.
It operates depending the input voltage supplied to the motor.
Inow
Equipment
Outow
10 mm (0.4 in.)
3.3 Installing the control unit
There are two methods for mounting the control unit onto a machine.
Refer to the mounting methods described below.
M4 screws are not included with the control unit. Users must supply these screws on their own.
Note Use a tightening torque of 0.7 N·m (6.1 lb-in) or less for the screws.
Tightening them at a torque above 0.7 N·m (6.1 lb-in) could damage the control unit.
Installing by opening a square hole
1. Cut a hole in the mounting plate as indicated in the
diagram to the left.
Unit [mm (in.)]
Mounting plate
2×Ø4.5 (Ø0.177)
90±0.2 (3.54)
81 (3.19)
+1 0
53 (2.09)
+1
0
2. Insert the control unit from the front of the mounting
plate and fasten with screws and nuts (M4: 2 pcs. of each).
Mounting plate
2×M4 Screw
Control unit
2×M4 Nut
Installing without opening a square hole
1. Cut holes in the mounting plate as indicated in the
diagram to the left.
26±0.2
(1.02)
Ø7
(Ø0.276)
Ø28 (Ø1.102)
Ø23 (Ø0.906)
Unit [mm (in.)]
90
±0.2
(3.54)
15±0.2 (0.59) 15±0.2 (0.59)
50
±0.2
(1.97)
13.2±0.2 (0.52) Mounting plate
Ø3.5 (Ø0.138)
Ø6.5
(Ø0.256)
∗ Cross section A
90°
2×Ø7.5
(Ø0.295)
4×Ø3.5
(Ø0.138)
∗ Cross section A
2. Remove the front panel from the control unit. (Grasp the
front panel alone and pull forward to remove.)
3. Fasten the control unit to the mounting plate using the
4 M3 screws and nuts included.
4. Fasten the front panel onto the front of the mounting
plate using the screws and nuts (M4: 2 pcs. of each).
4×M3 Nut (included)
Control unit
4×M3 Screw (included)
2×M4 Screw
Front panel
Mounting plate
2×M4 Nut
Note Use a plate 2 mm (0.08 in.) or less in thickness when the mounting plate sandwiched between the control unit
and the front panel.

Installation
−8−
3.4 Installing the capacitor (when using a motor with a capacitor)
Use M4 screws to mount the capacitor (screws not included).
Ø4.3 mm (Ø0.169 in.)
Capacitor cap
Note
•Do not remove the capacitor cap from the capacitor.
•Do not let the screw fastening torque exceed 1 N·m (8.8 lb-in) to prevent
damage to the mounting feet.
•Mount capacitor at least 10 cm (3.94 in.) away from the motor. If it is located
closer, he life of the capacitor will be reduced. The lead wire (yellow) for
capacitor should be about 30 cm (11.81 in.) long.
3.5 Installing and wiring in compliance with EMC directive
General
•EMC directive
The US series has been designed and manufactured for incorporation in general industrial machinery. The EMC directive
requires that the equipment incorporating this product comply with these directives.
The installation and wiring method is the basic methods that would eectively allow the customer’s equipment to be
compliant with the EMC directive.
The compliance of the nal machinery with the EMC directive will depend on such factors as conguration, wiring,
layout and risk involved in the control-system equipment and electrical parts. It therefore must be veried through EMC
measures by the customer of the machinery.
•Applicable standards
EMI Emission Tests EN 61000-6-4
EMS Immunity Tests EN 61000-6-2
Installing and wiring in compliance with EMC directive
Eective measures must be taken against the EMI that the US series may give to adjacent control-system equipment, as
well as the EMS of the US series itself, in order to prevent a serious functional impediment in the machinery.
The use of the following installation and wiring methods will enable the US series to be compliant with the EMC directive
(the aforementioned compliance standards).
•Connecting mains lter
Install a mains lter in the power supply line in order to prevent the noise generated within the control unit from
propagating outside via the power supply line.
For mains lters, use the products are shown in the below chart, or an equivalent.
Manufacturer Model
SOSHIN ELECTRIC CO.,LTD NF2010A-UP
Schaner EMC FN2070-10-06
Install the mains lter as close to the AC input terminal as possible, and use cable clamps and other means to secure the
input and output cables rmly to the surface of the enclosure. Connect the ground terminal of the mains lter to the
grounding point, using as thick and short a wire as possible.
Do not place the AC input cable (AWG18: 0.75 mm2or more) parallel with the mains-lter output cable (AWG18: 0.75 mm2
or more). Parallel placement will reduce mains-lter eectiveness if the enclosure’s internal noise is directly coupled to the
power supply cable by means of stray capacitance.
•Grounding procedure
The cable used to ground the motor must be as thick and short to the grounding point as possible so that no potential
dierence is generated. Choose a large, thick and uniformly conductive surface for the grounding point.
How to ground the control unit
Ground the ground terminal of the control unit.
How to ground the motor
When installing the motor, ground the motor using a protective earth terminal. For the motor is not equipped with
protective earth terminals, scrape the paint away from the mounting ange and connect the grounding cable along with
a set screw to the grounding point, using an inner-clip washer.

Installation
−9−
•Motor cable connection
When the motor cable is extended, use the optional extension cables (sold separately).
Refer to the table of "5.4 Extension cables" on page 13.
•Notes about installation and wiring
•Connect the motor and other peripheral control equipment directly to the grounding point so as to prevent a potential
dierence from developing between grounds.
•When relays or electromagnetic switches are used together with the system, use mains lters and CR circuits to
suppress surges generated by them.
•Example of motor and control unit installation and wiring
L
N
C
C
A
A
B
D
D
SPEED CONTROL UNIT
USP560-2E
POWER
LOW HIGH
RUN
STAND-BY
ORIENTAL MOTOR
A: Ground wire
B: Mains lter
C: Power cable
D: Motor cable
[4.75 m (0.19 in.)]
Motor
Control unit
Capacitor
Grounded Panel
Po
wer input
Precautions about static electricity
Static electricity may cause the control unit to malfunction or become damaged. Be careful when handling the control
unit with the power on.
Note Do not come close to or touch the control unit while the power is on.

Connection
−10−
4 Connection
Connection steps
Below is an explanation of how to use the unit as it was set up at the factory.
The motors direction of rotation is set in a clockwise direction viewing the motor from the side with the output shaft.
When changing the motors direction, refer to section "5 Operation" on page 11.
Control unit in illustration is the 110 V/115 V type, with internal capacitor.
1. Ground the green ground wire to ground. The function of this ground is for eliminating noise.
2. Connect the motor connector to the control unit connector. Make sure the connection is secure by inserting the
connectors until you hear the sound of them coupling.
3. Connect the power cord to the power supply after conrming that the control unit’s “RUN/STAND-BY” switch is set to
“STAND-BY”, and that the speed potentiometer’s knob is set to “LOW”. The control unit’s green power light goes on
when the power is turned on.
4. Ground the motor using the motor’s protective earth terminal .
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 (0.75 mm2) or more
Unit [mm (in.)]
Ø4.1 (0.161) or more
4.8 (0.189) or less
9.5 (0.374) or less
* For 60 W and 90 W type, the motor is not equipped with protective earth terminals. Refer to "Grounding procedure" on
page 8.
3. To power supply
Control unit rear panel
Green (Ground lead wire)
Power cord terminal block
Black
White
AC110 V䡚
AC115 V䡚
SPEED OUT
L
N䠄CW䠅
N䠄CCW䠅
110 VAC 60 Hz
115 VAC 60 Hz
220 VAC 50/60 Hz
230 VAC 50/60 Hz
㸦
㸧
1.
Control unit
Motor
4.
2.
Note Do not use screws other than the protective earth terminal screws attached on the product.

Operation
−11−
5 Operation
Note
•Make sure that the motor case temperature does not exceed 90 °C (194 °F) during motor operation.
Operating the motor above 90 °C (194 °F) will shorten the life of the coil and the ball bearings. Motor case
temperature can be measured by fastening a thermometer to the motor’s surface, or with thermo-tape.
Thermal Class: 130 (B)
•When operating the motor of 60 W and 90 W type at the low speed with light load, the cooling fan on the
back of the motor will not to rotate because the heating of the motor is low.
•A lter for external noise is built into the control unit. However variations from the desired speed may occur
depending on the noise level. Test your control unit after installing. Faulty operation can be prevented by
installing a noise lter and ferrite core.
•Only after turning the power OFF can the lead wires of the power cord terminal block be changed.
5.1 Starting, Changing speeds, Stopping
RUN/STAND-BY
switch
Speed potentiomete
r
POWER LED
LOW
POWER
HIGH
RUN
STAND-BY
Control unit front panel
Maximum-speed
adjustment
potentiometer
(remove front panel
before adjustment) Front panel
(can be removed)
Starting
Flip the control unit’s “RUN/STAND-BY” switch to the “RUN”
position. The motor will begin rotating at the speed set with
the rotation speed potentiometer.
Stopping
Flip the control unit’s “RUN/STAND-BY” switch to the
“STAND-BY” position to stop the motor.
Changing speeds
Turning the rotation speed potentiometer’s knob clockwise
(toward HIGH) makes the motor go faster, turning it
counterclockwise (toward LOW) makes the motor go slower.
The motor can be set to rotate at a speed of between 90 to
1400 r/min (50 Hz) or 90 to 1600 r/min (60 Hz).
The set speed does not change in the range of 90 to 1400 r/min,
even when the power supply frequency changes.
* The speed may exceed the upper limit of the variable-speed
range before the speed potentiometer is turned to the
maximum level (HIGH side).
When the maximum-speed adjustment potentiometer is used,
the entire range of the speed potentiometer can be used.
Note The “RUN/STAND-BY” switch does not turn
the power on and o. Install a separate power
switch for situations where the motor is to be
stopped for extended periods of time.
How to adjust maximum speed
Remove the front panel and adjust the maximum speed according to the following procedure:
1. Set the “RUN/STAND-BY” switch to “RUN”.
2. Turn the speed potentiometer to the maximum level.
3. Turn the maximum-speed adjustment potentiometer until 1400 r/min (50 Hz) or 1600 r/min (60 Hz) is reached.
Turning the potentiometer counterclockwise increases the maximum speed, while turning it clockwise decreases the
speed. Use an insulated precision Phillips screwdriver for the adjustment.
Note When the maximum-speed adjustment potentiometer was used to adjust the maximum speed, readjustment
will be necessary if the power supply frequency has been changed.

Operation
−12−
5.2 Operating the motor in one direction
Connections dier depending on the type of capacitor, internal or external.
To identify the capacitor type, refer to the table in section "2.2 Checking the product name and motor-control unit
combination" on page 5.
The motor rotates in a clockwise (CW) and counterclockwise (CCW) direction (viewing the motor from the side with the
output shaft).
Because the motor’s direction of rotation is set in a clockwise direction when shipping, the lead wires of the power cord
terminal block are connected to N (CW).
When operating the motor in a counterclockwise direction, connect the lead wires to N (CCW).
Control unit in illustration is the 110 V/115 V type.
Changing the motor's rotation direction “CW” (set at the factory) to “CCW”
Motor with internal capacitor
1. Remove the plastic cover over the power cord
terminal block on the rear of the control unit.
2. Disconnect the black lead wire connected to the
power cord terminal from N (CW) and reconnect it
to N (CCW). When the control unit is shipped from
the factory, lead wires are connected to power cord
terminals L and N (CW).
3. Replace the plastic cover over the power cord
terminal block.
Control unit rear panel
Green (Ground lead wire)
Power cord terminal block
Black
White
AC110 V䡚
AC115 V䡚
SPEED OUT
L
N䠄CW䠅
N䠄CCW䠅
110 VAC 60 Hz
115 VAC 60 Hz
220 VAC 50/60 Hz
230 VAC 50/60 Hz
㸦
㸧
Motor with external capacitor
1. Remove the plastic cover over the power cord
terminal block on the rear of the control unit.
2. Disconnect the black lead wire connected to the
power cord terminal from N (CW) and reconnect it
to N (CCW). Do not change the capacitor’s lead wire
(the yellow wire).
When the control unit is shipped from the factory,
the black lead wire connected to the power cord
terminal is connected to N (COM) and N (CW).
3. Replace the plastic cover over the power cord
terminal block.
Power cord terminal block
Capacitor
Green (Ground lead wire)
Control unit rear panel
White
Black
Yellow
AC110 V䡚
AC115 V䡚
SPEED OUT
N䠄CW䠅
L
N䠄COM䠅
N䠄CCW䠅
110 VAC 60 Hz
115 VAC 60 Hz
220 VAC 50/60 Hz
230 VAC 50/60 Hz
㸦
㸧
5.3 Switching between rotation directions
Users must provide a power switch and a forward/reverse switch.
Note Change the motor’s direction of rotation only after the motor has come to a complete stop. If you try to change
direction before it has stopped, you may be unsuccessful or it may take extra time.
Motor with internal capacitor
1. Connect a power switch“SW1” and a forward/
reverse switch “SW2”.
2. Flip the“RUN/STAND-BY” switch to “STAND-BY” and
make sure that the motor comes to a complete stop.
3. After the motor stops, turn o the power switch
“SW1” and turn “SW2” to CW/CCW.
4. Flip the power switch “SW1” to ON.
SW1
AC power supply
SW2
CW
CCW
L
N（CW）
N
（CCW）
L
N
ON
ON

Operation
−13−
Motor with external capacitor
1. Disconnect the black lead wire connected to N
(COM) and N (CW) of the power cord terminal block.
2. Connect a power switch“SW1” and a forward/
reverse switch “SW2”.
3. Flip the“RUN/STAND-BY” switch to “STAND-BY” and
make sure that the motor comes to a complete stop.
4. After the motor stops, turn o the power switch
“SW1” and turn “SW2” to CW/CCW.
5. Flip the power switch “SW1” to ON.
L
N（CW）
N
（COM）
N
（CCW）CW
CCW
SW1
Capacitor
ON
ON
AC power supply
SW2
L
N
Contact capacity of the switch
Use the switch of 250 VAC, 5 A or more capacity.
5.4 Extension cables
The distance between the motor and control unit is 0.75 m (3 in.) normally, use an extension cable (sold separately) in
situations where the motor and control unit are to be used apart from each other.
Using the longest cable, the distance can be extended up to 4.75 m (190 in.).
US206, US315, US425 and US540 types
Model Cable length [m (in.)]
CC01SU05 1 (39.37)
CC02SU05 2 (78.74)
CC03SU05 3 (118.11)
CC04SU05 4 (157.48)
US560, US590 types
Model Cable length [m (in.)]
CC01SU07 1 (39.37)
CC02SU07 2 (78.74)
CC03SU07 3 (118.11)
CC04SU07 4 (157.48)
Note Do not use multiple extension cables connected to each other, as this could result in faulty operation.

Characteristics
−14−
6 Characteristics
Safe-operation line
Input power to the speed control motor varies with the load and the speed. The greater the load, and the lower the speed,
the higher the motor’s temperature will rise.
The graph left displays the relationship between the speed and the torque characteristics of the AC speed control motor.
The line is referred to as the safe-operation line and the shaded area is called the continuous operation area.
The safe-operation line, measured by motor’s temperature, indicates its operational limit for continuous usage with the
temperature level below the permissible maximum.
Whether the motor can be operated continuously or not is judged by measuring the temperature of the motor case.
When the temperature of the case is below 90 °C (194 °F), the motor is capable of continuous operation.
When using a gearhead, be aware that it is necessary to operate below the maximum permissible torque. If the actual
torque required should exceed the maximum permissible torque, it may cause possible damage to the motor and/or
shorten its life.
1.2
1.0
0.8
0.6
0.4
0.2
0
500 1000 1500
1800
Speed [r/min]
Torque [N·m]
50 Hz
60 Hz
60 Hz Safe-Operation Line
50 Hz Safe-Operation Line
7 Locked rotor burnout protection of motor
WARNING
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 fan will start abruptly when the overheat protection device (thermal
protector) is automatically reset.
This motor is equipped with the function to prevent the motor from burning out as a result of abnormal heating caused
by some reasons, which protects the motor in two ways.
Thermal protection (“TP” is stamped on the motor nameplate)
When the motor reaches a predetermined temperature, the internal thermal protector is activated and the motor is
stopped.
With the automatic resume feature, the motor automatically begins operating again as soon as the motor temperature
falls.
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 82±15 °C (180±27 °F)
Impedance protection (“ZP” is stamped on the motor nameplate)
When the motor goes into locked rotor condition due to a malfunction, coil impedance rises, suppressing input to the
motor and protecting the motor coil from burnout.

Troubleshooting
−15−
8 Troubleshooting
When the motor is not functioning normally, perform an inspection covering the points listed in the table below.
If the inspection shows that everything is normal but the motor and control unit still are not functioning normally, contact
the nearest ORIENTAL MOTOR oce.
Problem Things to check
The motor does not rotate
Is the correct voltage being supplied to the control unit?
Have the motor and control unit become disconnected?
Is the load too large?
Is the control unit’s “RUN/STAND-BY” switch set to“STAND-BY”?
Do you have the right motor-control unit combination?
Is the control unit’s speed knob turned to LOW?
Was the thermal protector activated?
If you are using a motor with an external capacitor, is it connected as indicated in
"4 Connection" or "5 Operation"?
The motor does not rotate in the wrong direction
Are the connections right?
Check "4 Connection" or "5 Operation."
The gearhead output shaft’s rotation direction diers depending on the
gearhead’s deceleration ratio. Refer to catalogue for details.
If you are using a motor with an external capacitor, is it connected as indicated in
"4 Connection" or "5 Operation"?
Are you looking at the motor from the wrong side?
Rotation is dened as being clockwise and counterclockwise when viewing the
motor from the side with the output shaft.
The motor becomes extraordinarily hot
[motor case temperature exceeds 90 °C (194 °F)]
Is the correct voltage being supplied to the control unit?
Does the ambient temperature exceed the permissible range?
Do you have the right motor-control unit combination?
The power lamp does not go on Is the power cord correctly connected to the power supply?
The motor makes a strange noise
Are the motor and gearhead correctly fastened?
Refer to the gearhead operation manual.
Is the coupled gearhead the same pinion type as the motor shaft?
The cooling fan does not rotate
Are you operating the motor at low speed without a load?
If turning the speed potentiometer’s knob to HIGH causes the cooling fan to begin
rotating, it is operating normally.

•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. 2008
Published in March 2020
• Please contact your nearest Oriental Motor oce for further information.
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