Oriental motor PK Series User manual

1
Introduction
Before use
Only qualied personnel should work with the product.
Use the product correctly after thoroughly reading the“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.
Hazardous substances
The products do not contain the substances exceeding the restriction values
of RoHS Directive (2011/65/EU).
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.
Description of signs
Handling the product without observing the instructions that
accompany a "Warning" symbol may result in serious injury or
death.
Handling the product without observing the instructions that
accompany a“Caution”symbol may result in injury or property
damage.
The items under this heading contain important handling
instructions that the user should observe to ensure safe use of
the product.
Description of graphic symbols
Indicates "prohibited" actions that must not be performed.
Indicates "compulsory" actions that must be performed.
yDo not use the product in explosive or corrosive environments, in
the presence of ammable gases, locations subjected to splashing
water, or near combustibles.
This may cause re or injury.
yDo not forcibly bend, pull or pinch the motor lead wire or cable.
This may cause re.
yDo not disassemble or modify the product.
This may cause injury.
HM-60344
OPERATING MANUAL Thank you for purchasing an Oriental Motor product. This Operating Manual
describes product handling procedures and safety precautions.
yPlease read it thoroughly to ensure safe operation.
yAlways keep the manual where it is readily available.
5-Phase Stepping Motor
PK Series
yAssign qualied personnel the task of installing, wiring, operating/
controlling, inspecting and troubleshooting the product.
Failure to do so my result in re or injury.
yIf this product is used in a vertical application, be sure to provide a
measure for the position retention of moving parts.
Failure to do so may result in injury or damage to equipment.
yInstall the product in an enclosure.
Failure to do so may result in injury.
yConnect the cables securely according to the wiring diagram.
Failure to do so may result in re.
yFor the power supply, use a DC power supply with reinforced
insulation on its primary and secondary sides.
Failure to do so may cause electric shock.
yDo not use the product beyond its specications.
This may cause injury or damage to equipment.
yKeep your ngers and objects out of the openings in the product.
Failure to do so may result in re or injury.
yDo not touch the product while operating or immediately after
stopping.
This may cause a skin burn(s).
yDo not carry the motor by holding the motor output shaft, lead
wire or cable.
Doing so may cause injury.
yKeep the area around the product free of combustible materials.
Failure to do so may result in re or a skin burn(s).
yLeave nothing around the product that would obstruct ventilation.
Failure to do so may result in damage to equipment.
yDo not touch the rotating part (output shaft) while operating the
motor.
Doing so may result in injury.
yProvide a cover over the rotating part (output shaft) of the motor.
Failure to do so may result in injury.
yUse a motor and driver only in the specied combination.
Failure to do so may result in re.
yProvide an emergency stop device or emergency stop circuit 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.
yWhen an abnormal condition has occurred, immediately stop
operation and turn o the driver power.
Failure to do so may result in re or injury.
yTo dispose of the product, disassemble it into parts and
components as much as possible and dispose of individual parts/
components as industrial waste.

2
Precautions for use
•Conduct the insulation resistance measurement and dielectric
strength test in a condition where the connection between the
motor and the driver are separated.
Conducting the insulation resistance test or dielectric strength test with the
motor and driver connected may result in damage to the product.
•Do not apply a radial load and axial load in excess of the
specied permissible limit
Operating the motor under an excessive radial load or axial load may damage
the motor bearings (ball bearings). Be sure to operate the motor within the
specied permissible limit of radial load and axial load.
•Use the motor in conditions where its surface temperature will
not exceed 100 °C (212 °F).
The surface temperature on the motor case may exceed 100 °C (212 °F)
depending on operating conditions such as ambient temperature, operating
speed, duty cycle and others. To prevent the motor bearings (ball bearings)
from reaching its usable life quickly, use the motor in conditions where the
surface temperature will not exceed 100 °C (212 °F).
•Holding torque at standstill
The motor holding torque is reduced by the current cutback function of the
driver at motor standstill. When operating the motor, take account of the
motor torque drop at the time of stopping.
General specications
Degree of protection IP20
Operation
environment
Ambient
temperature −10 to +50 °C (+14 to +122 °F) (non-freezing)
Humidity 85% or less (non-condensing)
Surrounding
atmosphere No corrosive gas, dust, water or oil
Insulation
resistance
100 MΩ or more when 500 VDC megger is applied between
the case and motor windings.
Dielectric
strength
Sucient to withstand the following conditions applied
between the case and motor windings for 1 minute:
• PK51: 0.5 kVAC 50/60 Hz
• PK59: 1.5 kVAC 50/60 Hz
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.
yMotor ...................................... 1 unit
yOPERATING MANUAL ........ 1 copy (this manual)
How to identify the product model
PK 5 1 3 P A
1 23458
PK 5 9 6 H N A W
1 234678 9
1 Series PK: PK Series
25: 5-phase
3 Motor frame size 1: 20 mm (0.79 in.)
9: 85 mm (3.35 in. )
4 Motor length
5 Motor classication
6 Motor specication None: Standard type
H: High-speed type
7 Number of lead wire N: 5 pcs.
8 Shaft type A: Single shaft
B: Double shaft
9 Cable identication None: Connector type
W: Lead wire type
Names of parts
zPK51
Pilot
Output shaft
Mounting hole
(4 locations)
Connector
zPK59
Motor lead wire
Pilot
Output shaft
Mounting hole
(4 locations)

3
Installation
Location for installation
The motor has been designed and manufactured to be incorporated in
equipment. Install it in a well-ventilated location that provides easy access for
inspection. The location must also satisfy the following conditions:
yInside an enclosure that is installed indoors (provide vent holes)
yOperating ambient temperature: −10 to +50 °C (+14 to +122 °F) (non-
freezing)
yOperating ambient humidity 85% or less (non-condensing)
yArea that is free of explosive atmosphere or toxic gas (such as sulfuric gas)
or liquid
yArea not exposed to direct sun
yArea free of excessive amount of dust, iron particles or the like
yArea not subject to splashing water (rain, water droplets), oil (oil droplets)
or other liquids
yArea free of excessive salt
yArea not subject to continuous vibration or excessive shocks
yArea free of excessive electromagnetic noise (from welders, power
machinery, etc.)
yArea free of radioactive materials, magnetic elds or vacuum
Installation method
The motor can be installed in any direction.
Install the motor onto an appropriate at metal plate having excellent
vibration resistance and heat conductivity.
When installing the motor, secure it with four bolts (not supplied) through the
four mounting holes provided. Do not leave a gap between the motor and
metal plate.
•Installation method 1
Pilot
Metal plate
Mounting
holes
•Installation method 2
Metal plate
Mounting holes
Pilot
Model Nominal
size
Tightening
torque
[N·m (lb-in)]
Eective depth of
bolt [mm (in.)]
Installation
method
PK51 M2 0.25 (2.2) 2.5 (0.1) 1
PK59 M5 3 (26.6) − 2
Installing a load
When connecting a load to the motor, align the centers of the motor output
shaft and load shaft. Be careful not to damage the output shaft or bearings
when installing a coupling or pulley to the motor output shaft.
Permissible radial load and permissible axial load
The radial load and axial load on the motor output shaft must be kept the
permissible values listed in the table below.
Model
Permissible radial load [N (lb.)]
Permissible
axial load
[N (lb.)]
Distance from the tip of motor output shaft
0 mm
(0 in.)
5 mm
(0.20 in.)
10 mm
(0.39 in.)
15 mm
(0.59 in.)
20 mm
(0.79 in.)
PK51 12 (2.7) 15 (3.3) − − − 3 (0.67)
PK59 260 (58) 290 (65) 340 (76) 390 (87) 480 (108) 60 (13.5)
Connection
Connector type motor
Connect while checking the connector pin numbers. The parentheses ( ) in
the wiring diagram are colors of the accessory connection cable. When you
use an accessory connector set or provide a connector and lead wires by
yourself, connect in accordance with the pin numbers in the wiring diagram.
ySecure the cable at the connection part to prevent the connection
part from receiving stress due to the exing of the cable or the
cable’s own mass. Make the radius of curvature for the cable as large
as possible.
yThe connection cable uses a connector with a lock mechanism.
When removing the cable, release the connector lock rst. Forcibly
pulling out the connector without releasing the connector lock may
damage the motor and connector.
Remove the connection cable in the direction of the output shaft
horizontally.
54321
1 (Blue)
2 (Red)
3 (Orange)(Green) 4
(Black) 5
• Pin assignment • Wiring diagram
Pin No.
Applicable connector/lead wire
Model Type Model
PK51
Connector housing 51065-0500 (Molex)
Contact 50212-8100 (Molex)
Designated
crimping tool 57176-5000 (Molex)
Applicable lead
wire
AWG26 to 24 (0.14 to 0.2 mm2)
Outer sheath diameter: ø1.4 mm (ø0.055 in.)
or less
Length of the insulation cover which can be
peeled: 1.3 to 1.8 mm (0.051 to 0.071 in.)
Lead wire type motor
Connect the motor according to the wiring diagram. The parentheses ( ) in
the wiring diagram are colors of the motor lead wires.
(Blue)
(Red)
(Orange)(Green)
(Black)
Wiring diagram

4
yUnauthorized reproduction or copying of all or part of this manual is
prohibited.
yOriental 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.
yCharacteristics, specications and dimensions are subject to change without
notice.
yWhile 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.
yis a registered trademark or trademark of Oriental Motor
Co., Ltd., in Japan and other countries.
© Copyright ORIENTAL MOTOR CO., LTD. 2016
Published in September 2016
Technical Support Tel:[phone]
8:30 A.M. to 5:00 P.M., P.S.T. (M-F)
7:30 A.M. to 5:00 P.M., C.S.T. (M-F)
www.orientalmotor.com
Schiessstraße 74, 40549 Düsseldorf, Germany
Technical Support Tel:[phone]
www.orientalmotor.de
Tel:[phone]
www.oriental-motor.co.uk
Tel:[phone]
www.orientalmotor.fr
Tel:[phone]
www.orientalmotor.it
Tel:[phone]
www.orientalmotor.com.br
• Please contact your nearest Oriental Motor oce for further information.
4-8-1Higashiueno,Taito-ku,Tokyo 110-8536
Japan
Tel:[phone]
www.orientalmotor.co.jp
Tel:[phone]
www.orientalmotor.com.tw
Singapore
Tel:[phone]
www.orientalmotor.com.sg
Tel:[phone]
www.orientalmotor.com.my
Korea
Tel:[phone]
www.inaom.co.kr
Tel:[phone]
www.orientalmotor.co.th
Tel:[phone]
www.orientalmotor.com.cn
Tel:[phone]
www.orientalmotor.co.in
Hong Kong Branch
Tel:[phone]
Inspection and maintenance
Inspection
It is recommended that periodic inspections are 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.
zDuring inspection
yAre any of motor mounting screws loose?
yAre there any abnormal noises in the motor bearings (ball bearings) or
other moving parts?
yAre there any scratches, signs of stress in the motor lead wires?
yAre there any loose connections on the connector or driver?
yAre the motor’s output shaft and load shaft 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.
Specications
Check on the Oriental Motor Website for the product specications.