Oriental motor DG Series Manuale utente

HG-8032-4

Hollow Rotary Actuators

DG 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

1Introduction .................................. 2

2Safety precautions ....................... 5

3Precautions for use ...................... 8

4Preparation..................................11

4.1 Checking the product................... 11

4.2 Combinations of actuators and

drivers.......................................... 11

4.3 Names and functions of parts...... 12

5Installation .................................. 14

5.1 Location for installation................ 14

5.2 Installing the actuator ..................15

5.3 Securing the load to the output

table............................................. 16

5.4 Permissible moment load and

permissible thrust load.................17

5.5 Installing the driver ...................... 18

5.6 Installation of home-sensor set

(sold separately) .......................... 19

5.7 Installing and wiring in compliance

with EMC Directive ...................... 23

6Connection ................................. 26

6.1 Connection example....................26

6.2 Connecting to the power supply ..29

6.3 Connecting the actuator ..............30

6.4 Connecting control input/output...31

6.5 About control input/output............33

6.6 Timing chart .................................39

7Setting ........................................ 40

7.1 Resolution....................................40

7.2 Pulse-input mode.........................41

7.3 Operating current.........................42

7.4 Speed filter...................................43

8Protective functions .................... 44

8.1 Descriptions of protective functions

and numbers of LED blinks .........44

8.2 How to clear a protective

function ........................................45

9Inspection ................................... 46

10 Troubleshooting and remedial

actions ........................................ 47

11 Options (sold separately)............ 50

1 Introduction

－2－

1 Introduction

 Before use

Only qualified personnel should work with the product.

Use the product correctly after thoroughly reading the section 2 “Safety precautions”

on page 5.

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. Oriental

Motor Co., Ltd. is not responsible for any damage caused through failure to observe

this warning.

 Overview of the product

The DG series models are the hollow rotary actuator for high-precision positioning.

It uses the stepping motor, with a rotor position sensor, as its power unit.

(hereinafter referred to as “actuator”.)

 Standards and CE Marking

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

(EMC Directive) in compliance with the EN Standards.

Model Applicable Standards Certification

Body

Standards

File No.

Marking

Motor ASM34AK-D

ASM34BK-D

UL 60950

CSA C22.2 No.60950 E208200

UL 508C

CSA C22.2 No.14 E171462

Driver ASD10A-K UL 1950

CSA C22.2 No.950

E208200

EMC

Directive

∗ Approval conditions for UL 60950 and UL 1950: Class III equipment, SELV circuit,

Pollution degree 2

∗ For unit models, Oriental Motor declares conformance with the EMC Directive individually.

• For Low Voltage Directive

This product is not subject to the EC’s Low Voltage Directive because its input

power supply voltage is 24 VDC. However, the user is advised to perform the

following steps when conducting product installation and connection.

• This product is designed for use within machinery, so it should be installed within

an enclosure.

• For the driver, use a power supply with reinforced insulation on its primary and

secondary sides.

1 Introduction

－3－

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

This product has received EMC measures under the conditions specified in “Sample

installation and wiring for the DC power input specification” on page 25.

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

referring to 5.7 “Installing and wiring in compliance with EMC Directive” on page

23.

 Hazardous substances

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

 Main features

• Direct installation of a load axis

A table, arm or other load can be mounted directly on the output table. Thus, it

reduces the need for fastening members such as couplings and friction conclusion

tool, power-transmission members such as belt pulleys, and assembly man-hours.

• High-precision positioning without backlash

The non-backlash mechanism allows for highly precise positioning with 2´ (0.033°)

of lost motion.

• Hollow, large-diameter structure

The output table has a hollow structure with a diameter of 28 mm (1.10 in.). As a

result your equipment design can be simplified and installation space reduced by

routing tubes and wires through the hollow section.

• Quick response, high reliability

The stepping motor used in the DG series does not allow missteps, even

with a sudden change in load. The speed and amount of rotation are monitored

during operation, and when the possibility of a misstep is detected due to an

overload, etc., the response delay is corrected and operation continues within the

maximum operating torque range.

1 Introduction

－4－

 System configuration

Controllers with pulse output functions are needed to operate the DG series.

Controller

(programmable

controller and

others)

Control input

and output

Positioning

controller

Pulse output and

control input/output

Driver cable

(sold separately)

Driver

Actuator

Extension cable

(sold separately)

Control input and output

Home-sensor set

(sold separately)

DG series

Home-detection sensors are required when the return to mechanical home is

performed. For the application requiring home detection, the home-sensor set is

available as an option (sold separately). Refer to page 50.

2 Safety precautions

－5－

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 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 or

injury.

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

vertical travel. The actuator 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, the motor will stop and lose its

holding torque, possibly causing injury or damage to equipment.

• When the driver’s protective function is triggered, first remove the cause and then

clear the protective function. Continuing the operation without determining the

cause of the problem may cause malfunction of the actuator, leading to injury or

damage to equipment.

Installation

• Install the actuator and driver in their enclosures in order to prevent injury.

2 Safety precautions

－6－

Connection

• Keep the driver’s power supply input voltage within the specified range to avoid

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

fire.

• Do not forcibly bend, pull or pitch the cable. Doing so may result in fire.

Operation

• Turn off the driver power in the event of a power failure, otherwise the actuator

may suddenly start when the power is restored and may cause injury or damage to

equipment.

• Do not turn the C.OFF (All windings off) input to “ON” while the actuator is

operating. The actuator 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 actuator or driver. This may cause 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 actuator and driver beyond their specifications, or injury or damage

to equipment may result.

• Keep your fingers and objects out of the openings in the actuator and driver, or

fire or injury may occur.

• Do not touch the actuator or driver’s heat radiating plate during operation or

immediately after stopping. The surfaces are hot and may cause a burn.

Transportation

• Do not hold the output table or motor cable. This may cause injury.

Installation

• Keep the area around the actuator 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 actuator and

driver that would obstruct ventilation.

• Provide a cover over the rotating parts of the output table to prevent injury.

2 Safety precautions

－7－

Operation

• Use the actuator 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 actuator may start suddenly and cause injury or damage to

equipment.

• To prevent bodily injury, do not touch the rotating parts (output table) of the

actuator during operation.

• Before moving the output table directly (as in the case of manual positioning),

confirm that the driver C.OFF (All windings off) input is “ON” to prevent injury.

• The actuator’s surface temperature may exceed 70 °C (158 °F),

even under normal operating conditions. If an actuator is

accessible during operation, post a warning label shown in the

figure in a conspicuous position to prevent the risk of burns.

Warning label

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

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

Disposal

• To dispose of the actuator 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

－8－

3 Precautions for use

This section covers limitations and requirements the user should consider when

using the DG series.

• Conduct the insulation resistance measurement or withstand voltage

test separately on the actuator and the driver.

Conducting the insulation resistance measurement or withstand voltage test with the

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

• Do not apply moment load and thrust load in excess of the specified

permissible limit.

Be sure to operate the actuator within the specified permissible limit of moment load

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

damage the actuator bearings (ball bearing). See page 17 for details.

• Set the surface temperature of the actuators as follows:

When using the actuator, set its operating conditions (operating speed, operating

duty, etc.) so that the following temperatures are maintained.

When the optional home-sensor set is not used

Use the actuator at the ambient operating temperature of 0 to +50 °C (+32 to

+122 °F) and motor surface temperature of 100 °C (212 °F) or less. If the motor

surface temperature exceeds 100 °C (212 °F), the life of the bearing (ball bearing)

employed in the motor will be diminished to a significant extent.

When the optional home-sensor set is used

Use the actuator at the ambient operating temperature of 0 to +40 °C (+32 to

+104 °F) and motor surface temperature of 90 °C (194 °F) or less. If the motor

surface temperature exceeds 90 °C (194 °F), the temperatures of the

photomicrosensors employed as home sensors will rise and the life of the sensor will

be diminished to a significant extent.

• For use with a lift device, provide a means to prevent the moving part

from dropping.

When the driver’s protective function is actuated, the current to the actuator will be

cut off and the actuator will stop (i.e. the holding force will be lost). In a lift device

such as a lifter, provide a means to prevent the moving part from dropping.

• About maximum static torque at excitation

The maximum static torque at excitation indicates the output table’s holding torque

at standstill. The current-cutback function, which suppresses the increase in motor

temperature, maintains the maximum static torque at excitation to approximately

50% of the permissible torque. When selecting the actuator, consider the maximum

static torque at excitation in addition to the permissible torque.

3 Precautions for use

－9－

• About permissible speed

Use the actuator within the permissible speed. The permissible speed indicates the

permissible speed (r/min) of the output table. If the actuator is operated at speeds

exceeding the permissible speed, the life of the actuator may be diminished to a

significant extent.

• About the DG series with double motor shafts

The DG series includes models with double motor shafts. With these models, do not

apply load toque, overhung load or thrust load on the shaft opposite the motor’s

output shaft.

• M2.5 screw holes for home sensor installation

The M2.5 screw holes provided in the gear mechanism of the actuator is used for

installing the optional home-sensor set (sold separately). Do not use these holes for

any purpose other than installation of the home sensor.

• About the actuators screws

Do not loosen or remove the actuator screws. To do so may cause the positioning

accuracy to drop or result in actuator damage.

• About the rotating direction of the actuators

The CW and CCW inputs provided as driver input signals indicate the opposite

directions to the output table’s direction of rotation. When the CW input is active,

the output table rotates counterclockwise. When the CCW input is active, the output

table rotates clockwise.

Direction of

rotation when

CCW input is active

Direction of

rotation when

CW input is active

• About the hollow section

The hollow section rotates with the output table. When routing tubes or wires

through the hollow section, provide the means to prevent wear or wire breakage due

to contact with the interior walls of the hollow section.

• Preventing electrical noise

See 5.7 “Installing and wiring in compliance with EMC Directive” on page 23 for

measures with regard to noise.

3 Precautions for use

－10－

• About grease of actuators

On rare occasions, a small amount of grease may ooze out from the actuator. If there

is concern over possible environmental damage resulting from the leakage of grease,

check for grease stains during regular inspections. Alternatively, install an oil pan or

other device to prevent leakage from causing further damage. Oil leakage may lead

to problems in the customer’s equipment or products.

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