Oriental motor RBK Series User manual

HP-7445-4

2-Phase Stepping Motor Unit!

RBK Series

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 Introduction .................................. 2

2 Safety precautions ....................... 4

3 Precautions for use ...................... 7

4 Preparation................................... 8

4.1 Checking the product ..................... 8

4.2 Combinations of motors and

drivers ............................................8

4.3 Names and functions of parts......... 9

5 Installation ...................................11

5.1 Location for installation................. 11

5.2 Installing the motor....................... 12

5.3 Installing a load ............................ 13

5.4 Permissible overhung load and

permissible thrust load ................. 14

5.5 Installing the driver ....................... 14

5.6 Installing and wiring in compliance

with EMC Directive....................... 18

6 Connection................................. 21

6.1 Connection example .................... 21

6.2 Connecting the power supply ....... 24

6.3 Connecting and grounding

the motor...................................... 25

6.4 Grounding the driver .................... 29

6.5 Connecting the I/O signals ........... 30

6.6 About input/output signals............ 31

6.7 Timing chart.................................. 35

7 Settings.......................................36

7.1 Smooth drive function................... 36

7.2 Anti-resonance function................ 37

7.3 Third harmonic waveform

correction function........................ 37

7.4 Step angle .................................... 38

7.5 Motor current................................ 38

8 Protective functions.....................40

8.1 Descriptions of protective functions

and numbers of LED blinks .......... 40

8.2 How to clear a protective

function ........................................ 40

9 Inspection....................................41

10 Troubleshooting and remedial

actions ........................................42

1 Introduction

!2!

1 Introduction

Before use

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. For the

driver’s power supply, use a DC power supply with reinforced insulation on its

primary and secondary sides. Oriental Motor Co., Ltd. is not responsible for any

damage caused through failure to observe this warning.

Overview of the product

The RBK series is a unit product consisting of an encased microstep driver with

built-in smooth drive function, and a 2-phase stepping motor of high torque design.

Standards and CE Marking

This product is recognized by UL and certified by CSA, and bears the CE Marking

(Low Voltage Directive, EMC Directive) in compliance with the EN Standards.

!" Applicable Standards

Applicable

Standards

Certification

Body

Standard

File No. CE Marking

UL 1004, UL 2111

CSA C22.2 No.77

CSA C22.2 No.100

UL E64199

Motor

EN 60034-1

EN 60034-5

EN 60950

IEC 60664-1

! !

Low Voltage

Directive,

EMC Directive

UL 508C#

CSA C22.2 No.14 UL E171462

Driver

EN 50178 ! !

Low Voltage

Directive,

EMC Directive

#" For UL Standard (UL 508C), the product is recognized for the condition of Maximum

Surrounding Air Temperature 40 °C (104 °F).

!" The names of products certified to conform with relevant standards are

represented by applicable unit model motor and driver part numbers.

!" For unit models, Oriental Motor declares conformance with the EMC Directive

individually.

1 Introduction

!3!

!" The temperature-rise test, as required by the UL Standards, is conducted with the

aluminum heat sink attached. The size and thickness of the heat sink are as

described below.

Size [mm (in.)] Thickness [mm (in.)]

PK26# 400 × 400 (15.75 × 15.75)

Motor

PK29# 200 × 200 (7.87 × 7.87) 10 (0.39)

Driver RBD# 200 × 100 (7.87 × 3.94) 2 (0.08)

!" Installation conditions (EN Standard)

Motor and driver are to be used as a component within other equipment.

Overvoltage category: II

Pollution degree: Class 3

Protection against electric shock: Class I

Compliance with the EC Directives

!" For Low Voltage Directive

This product is designed for use as a built-in component.

!" Install the product within an enclosure in order to avoid contact with the hands.

!" Be sure to maintain a Protective Earth in case the hands should make contact with

the product. Securely ground the Protective Earth Terminals of the motor and

driver.

!" For EMC Directive (89/336/EEC, 92/31/EEC)

This product has received EMC measures under the conditions specified in

“Example of motor and driver installation and wiring” on page 20.

Be sure to conduct EMC measures with the product assembled in your equipment by

referring to 5.6 “Installing and wiring in compliance with EMC Directive” on page

18.

Hazardous substances

RoHS (Directive 2002/95/EC 27Jan.2003) compliant

2 Safety precautions

!4!

2 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

General

!" Do not use the product in explosive or corrosive environments, in the presence of

flammable gases, locations subjected to splashing water, or near combustibles.

Doing so may result in fire, electric shock or injury.

!" Assign qualified personnel the task of installing, wiring, operating/controlling,

inspecting and troubleshooting the product. Failure to do so may result in fire,

electric shock or injury.

!" Do not transport, install the product, perform connections or inspections when the

power is on. Always turn the power off before carrying out these operations.

Failure to do so may result in electric shock.

!" The terminals on the driver’s front panel marked with symbol indicate

the presence of high voltage. Do not touch these terminals while the power is on

to avoid the risk of fire or electric shock.

!" Provide a means to hold the moving parts in place for applications involving

vertical travel. The motor loses holding torque when the power is shut off,

allowing the moving parts to fall and possibly cause injury or damage to

equipment.

!" When the driver’s protective function is triggered, shut off the power immediately.

Turn the power back on only after determining the cause. Continuing the

operation without determining the cause of the problem may cause malfunction of

the motor, leading to injury or damage to equipment.

2 Safety precautions

!5!

Installation

!" To prevent the risk of electric shock, use the motor and driver for class I

equipment only.

!" Install the motor and driver in their enclosures in order to prevent electric shock or

injury.

!" Install the motor and driver so as to avoid contact with hands, or ground them to

prevent the risk of electric shock.

Connection

!" Keep the driver’s input power voltage within the specified range to avoid electric

shock or fire.

!" For the driver’s power supply use a DC power supply with reinforced insulation

on its primary and secondary sides. Failure to do so may result in electric shock.

!" Connect the cables securely according to the wiring diagram in order to prevent

electric shock or fire.

!" Do not forcibly bend, pull or pinch the power cable and motor cable. Doing so

may result in electric shock or fire.

!" Do not touch the connection terminals of the driver immediately after the power is

turned off. To avoid electric shock of the residual voltage, wait more than

5 seconds after Power LED is off.

Operation

!" Turn off the driver 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.

!" Do not turn the AWO (all windings off) input to “ON” while the motor is

operating. The motor will stop and lose its holding ability, which may result in

injury or damage to equipment.

Repair, disassembly and modification

!" Do not disassemble or modify the motor or driver. This may cause electric shock

or injury. Refer all such internal inspections and repairs to the branch or sales

office from which you purchased the product.

Caution

General

!" Do not use the motor and driver beyond their specifications, or electric shock,

injury or damage to equipment may result.

!" Keep your fingers and objects out of the openings in the motor and driver, or fire,

electric shock or injury may result.

!" Do not touch the motor or driver during operation or immediately after stopping.

The surfaces are hot and may cause a burn.

Transportation

!" Do not hold the motor output shaft or motor cable. This may cause injury.

2 Safety precautions

!6!

Installation

!" Keep the area around the motor and driver free of combustible materials in order

to prevent fire or a burn.

!" To prevent the risk of damage to equipment, leave nothing around the motor and

driver that would obstruct ventilation.

!" Provide a cover over the rotating parts (output shaft) of the motor to prevent

injury.

Operation

!" Use a motor and driver only in the specified combination. An incorrect

combination may cause a fire.

!" 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.

!" Before supplying power to the driver, turn all control inputs to the driver to

“OFF.” Otherwise, the motor may start suddenly and cause injury or damage to

equipment.

!" To prevent bodily injury, do not touch the rotating parts (output shaft) of the motor

during operation.

!" Before moving the motor directly (as in the case of manual positioning), confirm

that the driver AWO (all windings off) input is “ON” to prevent injury.

!" Immediately when trouble has occurred, stop running and turn off the driver

power. Failure to do so may result in fire or injury.

!" To prevent electric shock, use only an insulated precision screwdriver to adjust the

driver switches.

!" The motor’s surface temperature may exceed 70 °C (158 °F),

even under normal operating conditions. If a motor is accessible

during operation, post the warning label shown in the figure in a

conspicuous position to prevent the risk of burns.

Warning

label

Maintenance and inspection

!" To prevent the risk of electric shock, do not touch the terminals while measuring

the insulation resistance or conducting a voltage-resistance test.

Disposal

!" To dispose of the motor or driver, disassemble it into parts and components as

much as possible and dispose of individual parts/components as industrial waste.

3 Precautions for use

!7!

3 Precautions for use

This section covers limitations and requirements the user should consider when

using the RBK series.

!" Do not operate the driver internal switches other than the SW1, SW2,

RUN and DATA.

Changing the switch settings may cause a product malfunction or cause damage to

the product. See page 36 for details on the switches.

!" Conduct the insulation resistance measurement or withstand voltage

test separately on the motor and the driver.

Conducting the insulation resistance measurement or withstand voltage test with the

motor and driver connected may result in injury or damage to equipment.

!" Do not apply an overhung load and thrust load in excess of the

specified permissible limit.

Be sure to operate the motor within the specified permissible limit of overhung load

and thrust load. Operating it under an excessive overhung load and thrust load may

damage the motor bearings (ball bearings). See page 14 for details.

!" Operate the motor with a surface temperature not exceeding 100 °C

(212 °F).

The motor casing’s surface temperature may exceed 100 °C (212 °F) under certain

conditions (ambient temperature, operating speed, duty cycle, etc.). Keeping the

surface temperature of the motor casing below 100 °C (212 °F) will also maximize

the life of the motor bearings (ball bearings).

!" About maximum static torque at excitation

Maximum static torque at excitation represents a value obtained when the motor is

excited using the rated current. When the motor is combined with a dedicated driver,

the maximum static torque at excitation drops to approximately 50% (factory

setting) due to the current cutback function that suppresses the rise in motor

temperature in a standstill state. Acceleration and operation at the maximum static

torque at excitation is possible in start-up, but it only has approximately 50%

holding power after it has stopped. When selecting a motor for your application,

consider the fact that the holding power will be reduced to approximately 50% after

the motor has stopped.

!" Preventing electrical noise

See 5.6 “Installing and wiring in compliance with EMC Directive” on page 18 for

measures with regard to noise.

!" Check the terminal block numbers of the motor, and connect them

correctly and securely.

Wrong connection of leads or poor contact may damage the driver.

4 Preparation

!8!

!" Regeneration

When a large inertial load is operated at high speed, regenerative energy will

generate and increase the power supply voltage, causing the protective function to

be triggered. Review the operating condition and make sure an excessive

regenerative voltage will not be generated.

4 Preparation

This section covers the points to be checked along with the names and functions of

the respective parts.

4.1 Checking the product

Upon opening the package, verify that the items listed below are included.

Report any missing or damaged items to the branch or sales office from which you

purchased the product. See 4.2 “Combinations of motors and drivers” below for the

motor and driver combinations.

!" Motor............................................................ 1 unit

!" Driver ........................................................... 1 unit

!" Operating manual (this manual) ................... 1 copy

Note When removing the driver from the conductive protection bag, make sure

your hands are not charged with static electricity. This is to prevent

damage to the driver due to static electricity.

4.2 Combinations of motors and drivers

Unit model Motor model Driver model

RBK264T PK264D1T

RBK266T PK266D1T

RBK268T PK268D1T

RBD242A-V

RBK296T PK296DT

RBK299T PK299DT

RBK2913T PK2913DT

RBD245A-V

4 Preparation

!9!

4.3 Names and functions of parts

This section covers the names and functions of parts in the motor and driver.

!" Motor

Cable clamp

Terminal box

Mounting holes

(four locations)

Output shaft

Pilot

External Protective

Earth Terminal

!" Terminals of motor (View with the terminal block removed)

Internal Protective

Earth Terminal

Terminal block

O-ring

•RBK26!•RBK29!

4 Preparation

!10!

!" Driver

No. Name Description

1 POWER LED (green) Lit when the power is on.

2 ALARM LED (red) This LED blinks when the protective function

was triggered and the ALARM output has

turned OFF as a result. The triggered protective

function can be checked by counting the

number of times the LED blinks.

3 I/O signals connector (CN1) Connect to I/O signals.

4 Motor terminal Connect to motor.

5 Power supply terminal Connect to power supply.

6 Protective Earth Terminal Make ground connection by installing a

grounding wire of AWG18 (0.75 mm2) or larger.

7 Motor operating current

setting switch (RUN)

Set the operating current of the motor.

8 Step angle setting switch

(DATA)

Select a desired motor step angle from among

the 16 preset levels.

9 Third harmonic waveform

correction function (SW1)

This function sets a correction value to be

applied to motor drive current waveforms.

10 Smooth drive function switch

(SW2-1)

This function lets you reduce vibration and

noise during low-speed operation.

11 Anti-resonance function

(SW2-2)

This function reduces vibration during

medium-speed operation.

12 SW2-3 Not used. (Keep this switch in the OFF

position.)

13 Motor standstill current setting

switch (SW2-4)

Set the current when the motor is at a standstill.

This manual suits for next models

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