Oriental motor PK Series Operating Manual

OPERATING MANUAL
2-phase Stepping Motor
PK Series Standard Type
IP65 rated motor
PK29□EAT
Introduction
Before use
This product must be handled by qualified personnel
with expert knowledge of electrical and mechanical
engineering. Use the product correctly after thoroughly
reading the section "Safety precautions."
This product is designed for use as an internal
component for general industrial equipment. Do not use
the product for any other purpose. Oriental Motor shall
not be liable whatsoever for any damage arising from
the failure to observe this warning.

Product overview

This product is a 2-phase stepping motor employing a
terminal-block connection method.
This product is recognized by UL and certified by CSA,
and bears the CE Marking (Low Voltage Directive) in
compliance with the EN Standards.
Certification
Applicable Standards
UL 1004, UL 2111
CSA C22.2 No.100
CSA C22.2 No.77
EN 60950, EN 60034-1,
EN 60034-5, IEC 60664-1 respective standards.
Degree of protection
IP65 (Excluding the gap between the shaft and
the flange)
Operating environment
Ambient −10 to +50 °C (+14 to +122 °F)
temperature (non-freezing)
Humidity 85% or less (non-condensing)
Up to 1000 m (3300 ft.) above sea
Altitude
level
Ambient
Free from corrosive gases
atmosphere
Installation conditions
Built-in component
Overvoltage category: II
Pollution degree: Class 3 (excluding installation
surface)
Protection against electric shock: Class I
equipment
The user is responsible for confirming the EMC
compatibility of the final equipment incorporating the
motor.
Hazardous substances
RoHS (Directive 2002/95/EC 27Jan.2003) compliant
Checking the product
Open the package and confirm that all of the following
items are available. Should you find any item missing or
damaged, contact the Oriental Motor sales office where
you purchased the product. Check the model of the
motor against the model number shown on the
nameplate.
• Motor 1 unit
• Short bars 4pcs. (packed in a plastic bag)
• OPERATING MANUAL 1 copy
• Model number
PK 2 9 6 E A T
Motor identification
A: Single shaft
E: 8 terminals
Motor case length
Motor frame size 9: 85 mm (3.35 in.)
2: 2-phase
PK series
• Product types
PK296EAT PK299EAT PK2913EAT
The connection methods and rated currents are listed
below.
Model
PK296
PK299
PK2913
Safety precautions
The motor is designed for incorporation into industrial
equipment. Touching the motor during operation may
result in bodily injury or property damage, since the
output shaft is rotating and the surface remains very hot.
To prevent injury or damage to the motor, be sure the
motor is handled and operated only by qualified
personnel familiar with operations involving electronic
equipment.
Standards
Handling the product without observing the instructions
Body File No.
that accompany a "Warning" symbol may result in death
or serious bodily injury.
UL E64199
• Do not use the motor in explosive or corrosive
environments, in the presence of flammable gases,
Conforming to the
near combustible materials, or locations subjected to
the splashing of oil or other hazardous liquids. Doing
so may result in fire, electric shock or injury.
• Turn off the power before working on the product.
Failure to do so may result in electric shock.
• Provide a measure to retain the position of the
movable part of the equipment when the product is
used in a vertical application. The motor loses its
holding torque when the power is cut off. Without
appropriate measures the movable part will descend,
resulting in injury or damage to the equipment.
• Install the motor in the enclosure to avoid contact with
the hands, or provide sufficient earthing. Failure to do
so may result in electric shock.
• Connect the product correctly and securely according
to the wiring diagram. Failure to do so may result in
fire or electric shock.
• After connecting the cable, securely fix and tighten
the terminal box and cable clamp. Failure to do so
may result in fire or electric shock.
• Turn off the power in case of a power failure. Failure
to do so may result in injury or damage to the
equipment when the motor starts suddenly upon the
recovery of power.
• Do not disassemble or modify the motor. This may
cause electric shock or injury.
Handling the product without observing the instructions
that accompany a "Caution" symbol may result in bodily
injury or property damage.
• Do not use the motor beyond its specifications. Doing
so may result in electric shock, injury or damage to
the equipment.
• Do not touch the motor while the motor is conducting
current. Doing so may result in burns.
• When connecting the terminal block or protective earth
terminal, use a round terminal with insulated coating.
Failure to do so may result in fire or electric shock.
• Do not carry the motor by its output shaft. Doing so
may result in injury.
• Securely fix the motor to an appropriate metal plate.
Failure to do so may result in injury or damage to the
equipment.
• Protect the rotating part of the motor (output shaft )
with a cover. Failure to do so may result in injury.
• Conduct the insulation resistance measurement or
withstand voltage test separately on the motor and
the driver. Failure to do so may result in damage to
equipment.
HM-40002-2
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.
Unipolar Bipolar connection
connection Parallel
4.5 A/phase 6.3 A/ phase 3.18 A/ phase
4.0 A/ phase 5.6 A/ phase 2.8 A/ phase
Warning
Caution
• Immediately when trouble has occurred, stop running
and turn off the power. Failure to do so may result in
fire, electric shock or injury.
• To dispose of the motor, disassemble it into parts and
Series
components as much as possible and dispose of
individual parts/components as industrial waste.
• 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.
Precautions for use
• Drive unit
Use a motor driver unit appropriate for the method of
motor connection.
• Connecting the motor
Use a multi-core cable of AWG22 to 16 (0.3 to
2
1.25 mm ) [7 to 13 mm (0.28 to 0.51 in.) in outer
diameter] for motor connection. Motor cable (with
protective earth conductor) is available as an option
(sold separately). For details, contact your nearest
Oriental Motor office.
Strip away 40 to 50 mm (1.57 to 1.97 in.) of sheath from
the end of the cable. Stripping the cable sheath by more
than 50 mm (1.97 in.) will reduce the sealing effect of
the cable clamp.
• Cable clamp
"Cable clamp" is a section through which a cable
passes. The cable clamp conforms to the IP65
specification and consists of the cap, gasket and
receptacle. To ensure watertightness at the cable clamp,
tighten the cap after confirming that the cover of the
connection cable is securely sealed by the gasket.
• Motor case temperature
The motor is designed to the class B insulation
specification. When operating the motor, keep the motor
case temperature to 100 °C (212 °F) or below.
Operating the motor at temperatures above 100 °C
(212 °F) will shorten the life of the motor coil and ball
bearing. [The maximum temperature is 75 °C (167 °F) if
the equipment is to receive UL/CSA certification,
because the motor must conform to the class A
insulation requirement.]
Installation

Installation requirements

The motor is designed to be a built-in component. It
must be used in an environment conforming to
overvoltage category II, pollution degree of class 3 and
protection against electric shock of class I equipment.
Degree of protection: IP65 (Excluding the gap between
the shaft and the flange)
Install the motor in a well-ventilated location that
provides easy access for inspection. The locaton must
also satisfy the following conditions:
• Inside an enclosure that is installed indoors (provide
vent holes)
• Operating ambient temperature: −10 to +50 °C (+14
to +122 °F) (non-freezing)
• Operating ambient humidity: 85% or less
(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 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 fields or
vacuum