1
Introduction
Before use
Only qualified personnel of electrical and mechanical engineering 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.
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.
y
Do not use the product in explosive or corrosive environments, in the
presence of flammable gases, locations subjected to splashing water,
or near combustibles.
This may cause fire or injury.
y
Do not forcibly bend, pull or pinch the cable and connector.
This may cause fire.
y
Do not disassemble or modify the product.
This may cause injury.
y
Assign qualified personnel the task of installing, wiring, operating/
controlling, inspecting and troubleshooting the product.
Failure to do so my result in fire or injury.
y
If 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.
y
Install the product in an enclosure.
Failure to do so may result in injury.
y
Connect the cables securely according to the wiring diagram.
Failure to do so may result in fire.
HM-60324-5
O P E R AT I N G M A N U A L
Thank you for purchasing an Oriental Motor product. This Operating Manual describes
product handling procedures and safety precautions.
y
Please read it thoroughly to ensure safe operation.
y
Always keep the manual where it is readily available.
2-Phase Stepping Motor
PKP
Series Flat Type
y
Do not use the product beyond its specifications.
This may cause injury or damage to equipment.
y
Keep your fingers and objects out of the openings in the product.
Failure to do so may result in fire or injury.
y
Do not touch the product during operation or immediately after
stopping.
This may cause a skin burn(s).
y
Do not carry the motor by holding the motor output shaft or motor
cable.
Doing so may cause injury.
y
Keep the area around the product free of combustible materials.
Failure to do so may result in fire or a skin burn(s).
y
Leave nothing around the product that would obstruct ventilation.
Failure to do so may result in damage to equipment.
y
Do not touch the rotating part (output shaft) during operation.
Doing so may cause injury.
y
Provide a cover over the rotating parts (output shaft) of the motor.
Failure to do so may result in injury.
y
Use a motor and driver only in the specified combination.
Failure to do so may result in fire.
y
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.
y
When an abnormal condition has occurred, immediately stop
operation and turn off the driver power.
Failure to do so may result in fire or injury.
y
The motor surface temperature may exceed 70 °C (158 °F)
even under normal operating conditions. If the operator is
allowed to approach the running motor, attach a warning
label as shown below in a conspicuous position.
Failure to do so may result in a skin burn(s).
Warning
label
Precautions for use
•
When conducting the insulation resistance measurement and the
dielectric strength test, be sure to separate the connection between the
motor and the driver.
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 specified
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 specified permissible
limit of radial load and axial load.
•
Motor surface temperature
The motor surface temperature may exceed 100 °C (212 °F) under certain conditions
(operating ambient temperature, operating speed, duty cycle, etc.). To prevent the
bearings (ball bearings) from reaching its usable life quickly, use the motor in a condition
where the surface temperature does not exceed 100 °C (212 °F).
Use the geared motor in a condition where the gear case temperature does not exceed
70 °C (158 °F), in order to prevent deterioration of grease and parts in the gear case.
•
Rotation direction of output flange of Harmonic geared type
The output flange of the Harmonic geared type rotates in the opposite direction to the
rotation direction of the motor output shaft.
