sha series manual...ha-800 supports open field networks, making system configuration simple. fha-c...

AC Servo Actuator F H A - C s e r i e s m a n u a l

ISO14001 ISO9001

Introduction

Introduction Thank you for purchasing our FHA-C series AC Servo Actuator. Wrong handling or use of this product may result in unexpected accidents or shorter life of the product. Read this manual carefully and use the product correctly so that the product can be used safely for many years. Product specifications are subject to change without notice for improvement purposes. Keep this manual in a convenient location and refer to it whenever necessary in operating or maintaining the units. The end user of the actuator should have a copy of this manual.

SAFETY GUIDE

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SAFETY GUIDE To use this actuator safely and correctly, be sure to read SAFETY GUIDE and other parts of this document carefully and fully understand the information provided herein before using the actuator.

NOTATION Important safety information you must note is provided herein. Be sure to observe these instructions.

Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious personal injury.

Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate personal injury and/or damage to the equipment.

Indicates what should be performed or avoided to prevent non-operation or malfunction of the product or negative effects on its performance or function.

LIMITATION OF APPLICATIONS The equipment listed in this document may not be used for the applications listed below: ・Space equipment ・Automobile, automotive parts ・Aircraft, aeronautic equipment ・Amusement equipment, sport equipment, game machines ・Nuclear equipment ・Machine or devices acting directly on the human body ・Household apparatus ・Instruments or devices to transport or carry people ・Vacuum equipment ・Apparatus or devices used in special environments

If the above list includes your intending application for our products, please consult us.

Safety measures are essential to prevent accidents resulting in death, injury or damage of the equipment due to malfunction or faulty operation.

WARNING

CAUTION

CAUTION

SAFETY GUIDE

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SAFETY NOTE ITEMS YOU SHOULD NOTE WHEN USING THE ACTUATOR CAUTIONS RELATED TO THE DESIGN

BE SURE TO READ THE MANUAL FOR DESIGNING.

Always use under followings conditions. The actuator is designed to be used indoors. Observe the following conditions: ・ Ambient temperature: 0℃ to 40℃ ・ Ambient humidity: 20% to 80%RH (Non-condensation) ・ Vibration: Max 24.5 m/s2 ・ No contamination by water, oil ・ No corrosive or explosive gas Follow exactly the instructions in the relating manuals to

install the actuator in the equipment. ・ Ensure exact alignment of the actuator center and the center of the

corresponding machine by following the manual. ・ Failure to observe this caution may lead to vibration, resulting in damage of

output elements.

CAUTIONS FOR USAGE

BE SURE TO READ THE MANUAL BEFORE OPERATING THE PRODUCT.

Keep limited torques of the actuator. ・ Keep limited torques of the actuator. ・ Be aware, that if arms attached to output element hits by accident an solid,

the output element may be uncontrollable. Never connect cables directly to a power supply socket. ・ Each actuator must be operated with a proper driver. ・ Failure to observe this caution may lead to injury, fire or damage of the

actuator. Do not apply impacts and shocks ・ The actuator directly connects with the encoder so do not use a hammer

during installation. ・ Failure to observe this caution could damage the encoder and may cause

uncontrollable operation. Avoid handling of actuators by cables. ・ Failure to observe this caution may damage the wiring, causing

uncontrollable or faulty operation.

CAUTION

WARNING

SAFETY GUIDE

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ITEMS YOU SHOULD NOTE WHEN USING THE DRIVER CAUTIONS RELATED TO THE DESIGN

BE SURE TO READ THE MANUAL FOR DESIGNING.

Always use drivers under followings conditions. The driver generates heat. Use under the following conditions while paying

careful attention to the heat radiation. ・ Mount in a vertical position keeping sufficient clearance. ・ 0℃ to 50℃, 95%RH or below (No condensation) ・ No vibration or physical shock ・ No dust, dirt, corrosive or inflammable gas Use sufficient noise suppressing means and safe grounding. Any noise generated on a signal wire will cause vibration or improper motion.

Conform to the following conditions. ・ Keep signal and power leads separated. ・ Keep leads as short as possible. ・ Ground actuator and driver at one single point, minimum ground resistance

class: D (less than 100 ohms) ・ Do not use a power line filter in the motor circuit. Pay attention to negative torque by inverse load. ・ Inverse load may cause damages of drivers. ・ Please consult our sales office, if you intent to apply products for inverse

load. Use a fast-response type ground-fault detector designed for

PWM inverters. Do not use a time-delay-type ground-fault detector.

CAUTIONS FOR USAGE

BE SURE TO READ THE MANUAL BEFORE OPERATING THE PRODUCT.

Never change wiring while power is active. Make sure of power non-active before servicing the products. Failure to

observe this caution may result in electric shock or personal injury. Do not touch terminals or inspect products at least 5

minutes after turning OFF power. ・ Otherwise residual electric charges may result in electric shock. ・ Make installation of products not easy to touch their inner electric

components.

CAUTION

WARNING

SAFETY GUIDE

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Do not make a voltage resistance test. ・ Failure to observe this caution may result in damage of the control unit. ・ Please consult our sales office, if you intent to use a voltage resistance

test. Do not operate control units by means of power ON/OFF

switching. ・ Start/stop operation should be performed via input signals. ・ Failure to observe this caution may result in deterioration of electronic

parts.

DISPOSAL OF AN ACTUATOR AND/OR A DRIVER

All products or parts have to be disposed of as industrial waste.

Since the case or the box of drivers have a material indication, classify parts and dispose them separately.

CAUTION

CAUTION

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Contens

SAFETY GUIDE ...................................................................................................... 1NOTATION ............................................................................................................... 1LIMITATION OF APPLICATIONS ............................................................................. 1SAFETY NOTE ........................................................................................................ 2

Contens ................................................................................................................... 5Related manual ....................................................................................................... 7

Chapter 1 FHA-C series outline 1-1 Main features ................................................................................................. 1-11-2 Model ................................................................................................ 1-21-4 Specifications ............................................................................................... 1-4

Incremental model ................................................................................................. 1-41-5 External dimensions ..................................................................................... 1-5

Incremental model ................................................................................................. 1-51-6 Mechanical accuracy ................................................................................... 1-71-7 Uni-directional positional accuracy ..................................................................... 1-81-8 Resolution of output shaft ..................................................................................... 1-91-9 Rigidity ..................................................................................................... 1-10

Moment stiffness ................................................................................................. 1-10Torsional stiffness ................................................................................................ 1-11

1-10 Rotation direction ....................................................................................... 1-121-11 Shock resistance ........................................................................................ 1-131-12 Resistance to vibration ............................................................................... 1-141-13 Operable range .......................................................................................... 1-151-14 Cable specifications ................................................................................... 1-18

Motor cable specifications ................................................................................... 1-18Incremental encoder model encoder lead line .................................................... 1-18

Chapter 2 FHA-C series selection 2-1 Allowable load inertia moment ........................................................................ 2-12-2 Change in load inertia moment .................................................................... 2-22-3 Verifying and examining load weights ................................................................. 2-3

Maximum load weights .......................................................................................... 2-4Verifying life ........................................................................................................... 2-4Verifying static safety coefficients .......................................................................... 2-6

2-4 Examining operating status .......................................................................... 2-7

Contens

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Examining actuator rotation speed ........................................................................ 2-7Calculating and examining load inertia moment ................................................... 2-7Load torque calculation ......................................................................................... 2-8Acceleration time and deceleration time ............................................................... 2-9Examining duty .................................................................................................... 2-10Examining effective torque and average rotation speed ..................................... 2-13

Chapter 3 Actuator installation 3-1 Receiving Inspection ...................................................................................... 3-1

Inspection procedure ............................................................................................. 3-13-2 Notices on handling ........................................................................................ 3-33-3 Location and installation ................................................................................. 3-4

Environment of location ......................................................................................... 3-4Installation ............................................................................................................. 3-5

Chapter 4 Options 4-1 Motor shaft holding brake (option code: B) .................................................................... 4-1

Motor shaft holding brake specification (for incremental encoder) ........................ 4-1 Motor shaft holding brake cable specifications ..................................................... 4-2

4-2 With connector (option code: C) ................................................................................ 4-34-3 Cable length: 5m (option code: F5) ...................................................................... 4-44-4 Cable taken out from rear face (option code: K) ............................................................ 4-54-5 Revolution sensor (origin & end limit) (option code: L) ............................................................. 4-6

Revolution sensor specifications ................................................................................ 4-6Sensor adjustment method ................................................................................... 4-7Sensor drive range ................................................................................................ 4-8

4-6 Extension cables ............................................................................................ 4-9

Appendix A-1 Unit conversion ............................................................................................ 5-1A-2 Calculating inertia moment .......................................................................... 5-3

Formula of mass and inertia moment .................................................................... 5-3Inertia moment of cylinder ..................................................................................... 5-5

Related manual

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Related manual The table below lists related manual. Check each item as necessary.

Title Description AC Servo Driver HA-800 series manual The specifications and characteristics of HA-800 series are explained.

Related manual

8

Chapter 1

FHA-C series outline

This chapter explains the features, functions and specifications of the actuator.

1-1 Main features ······································································· 1-11-2 Model ················································································ 1-21-3 Combination with drivers ······················································· 1-31-4 Specifications ······································································ 1-41-5 External dimensions ····························································· 1-51-6 Mechanical accuracy ···························································· 1-71-7 Uni-directional positional accuracy ················································ 1-81-8 Resolution of output shaft ······························································ 1-91-9 Rigidity ············································································ 1-101-10 Rotation direction ···························································· 1-121-11 Shock resistance ····························································· 1-131-12 Resistance to vibration ······················································ 1-141-13 Operable range ······························································· 1-151-14 Cable specifications ························································· 1-18

1-1 Main features

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1-1 Main features The FHA-C series are AC servo actuators that provide high torque and highly accurate rotary operation. AC Servo Actuator models are comprised of an ultra-thin speed reducer HarmonicDrive® for precision control (model No. 17 through 40) combined with an ultra-flat AC servo motor. Their first feature is a slim line body. We reduced the body length to one-half or less of that of our conventional products. The second feature is a hollow structure. A through-hole is provided at the center of the actuator, through which wirings, air pipes, and even laser beams can be passed to supply power and give/receive signals to moving parts of machines and devices. Developed as the successor to the HA-655 driver, the HA-800 driver is a servo drive unit for controlling position, speed, and torque. The small, multi-functional drivers control the FHA-C series actuators' operations with great accuracy and precision. HA-800 supports open field networks, making system configuration simple. FHA-C series actuators play an important role in driving various factory automation (FA) equipment, such as robot joints, alignment mechanisms for semi-conductor and LCD devices, ATC of metal-cutting machines, printing machine roller drive, etc.

◆ Ultra slim line body Comprises an ultra-thin speed reducer HarmonicDrive® for precision control with an ultra-flat AC servo motor. The length from the mounting flange surface to the actuator edge is at least half the size of that of our conventional products, for a total length reduction of around 30%. This slim body makes it possible to dramatically reduce the size of the machinery being driven.

◆ Hollow structure A through-hole is provided at the center of the actuator, through which wirings, air pipes, and even laser beams can be passed to supply power and give/receive signals to moving parts of machines and devices. This feature can simplify machinery structures.

◆ High torque The actuator houses an ultra-thin speed reducer HarmonicDrive® for precision control to apply much higher output torque on external dimensions compared with methods using direct motor drive. The FHA-C series improves maximum torque even above that of our conventional products.

◆ High positional accuracy Incremental model offers ultra-high accuracy with an output shaft resolution of 1,600,000/rev (FHA-xxC-160), and uni-directional positional accuracy of 40 seconds (FHA-17C-160) or 30 seconds (FHA-25C/32C/40C-160).

◆ High torsional rigidity Offers improved torsional rigidity (30-100%) over our conventional products. This results in shorter positioning times and reduced vibration when rotating. ◆ Incremental encoder FHA-C series actuators use universally-adopted incremental encoders and reduce encoder wiring. This makes wiring work simple and provides a high degree of reliability.

1-2 Model

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1-2 Model Model names for the FHA-C series actuators and how to read the symbols are explained below. Option symbol details

Option spec. Option details Code Option spec. Option details Code

Input voltage: 100V

Applies to FHA-17C, -25C, -32C A

Extension cable

Converts motor and encoder cable to a length of 5 m

F5

Motor shaft brake For holding B

Cable lead-out direction Taken out from rear K

With connector For motors (IP-20), For encoders (IP-40) C Revolution

sensor Origin and end limit sensors L

Protection structure IP-67 (Technical consultation required)

W

Note: For details on using two or more options together, contact our sales office.

FHA-17 C-50-E 250-□ Model: AC Servo Actuator FHA series

Model Nos: 17，25，32, 40

Version symbol

Encoder resolution 250:2500p/rev

Reduction ratio of HarmonicDrive® 50:1/50 100:1/100 160:1/160

Option symbol

Encoder type E: Incremental encoder

1-3 Combination with drivers

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1-3 Combination with drivers The combinations of FHA-C actuators, HA-800 driver input voltage, and encoders are as follows:

Voltage Incremental model

FHA-17C-xx-E250 FHA-25C-xx-E250 FHA-32C-xx-E250 FHA-40C-xx-E250

200V HA-800*-3C-200 HA-800*-3C-200 HA-800*-6C-200 HA-800*-6C-200 100V HA-800*-3C-100 HA-800*-6C-100 HA-800*-6C-100 －

* HA-800A: I/O command type, HA-800B: MECHATROLINK type, HA-800C: CC-Link type. For details on combined drivers, refer to the HA-800 driver manual.

1-4 Specifications

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1-4 Specifications The specifications of FHA-C series actuators are explained. In the table below, 200V and 100V refer to the 200V specification (standard) and the 100V specification (option), respectively.

Incremental model Model

Item FHA-17C-xx-E250 FHA-25C-xx-E250 FHA-32C-xx-E250 FHA-40C-xx-E250 50 100 160 50 100 160 50 100 160 50 100 160

Max. torque N･m 39 57 64 150 230 260 281 398 453 500 690 820

kgf･m 4.0 5.8 6.5 15.3 23.5 26.5 28.7 40.6 46.2 51.0 70.4 83.7 Max. rotational

r/min 96 48 30 90 45 28 80 40 25 70 35 22

Torque constant

200V N･m/A 21 42 67 22 45 72 27 54 86 31 64 102

kgf･m/A 2.1 4.3 6.8 2.3 4.6 7.3 2.8 5.5 8.8 3.2 6.5 10.4

100V N･m/A 11 21 33 11 22 36 13 27 43 ― ― ―

kgf･m/A 1.1 2.2 3.4 1.2 2.3 3.7 1.4 2.8 4.4 ― ― ― Max.

current *2 200V A 2.1 1.6 1.1 7.3 5.6 4.0 11.4 8.0 5.9 17.3 11.8 9.0 100V A 4.2 3.2 2.2 15 11 8.0 23 16 12 ― ― ―

MEF constant

200V V/(r/min) 2.3 4.7 7.5 2.5 5.1 8.1 3.0 5.9 9.5 3.6 7.2 11.4 100V V/(r/min) 1.2 2.4 3.8 1.3 2.6 4.1 1.5 3.0 4.8 ― ― ―

Phase resistance

200V Ω(20℃) 7.9 2.6 1.0 0.73 100V Ω(20℃) 2.0 0.65 0.25 ―

Phase inductance

200V mH 6.0 2.6 1.3 1.5 100V mH 1.5 0.65 0.33 ―

Inertia moment

(GD2/4) kg･m2 0.17 0.67 1.7 0.81 3.2 8.3 1.8 7.1 18.1 4.9 19.5 50 (J) kgf･cm･s2 1.7 6.9 17 8.3 33 85 18 72 185 50 200 510

Reduction ratio 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 Permissible radial load

kN 2.9 4.9 9.5 14.7 kgf 300 500 970 1500

Permissible axial load

kN 9.8 14.7 24.5 39.2 kgf 1000 1500 2500 4000

Permissible moment capacity

N･m 188 370 530 690 kgf･m 19 38 54 70

Moment stiffness

N･m/rad 220×103 490×103 790×103 1400×103 kgf･m/

22×103 50×103 80×103 140×103

Uni-directional positional accuracy

Sec. 60 40 40 40 30 30 40 30 30 40 30 30

Motor position detector

2500 pulse/rev. Output shaft resolution

(multiplied by 4) Pulse/

rev. 500,000 1,000,000 1,600,000 500,000 1,000,000 1,600,000 500,000 1,000,000 1,600,000 500,000 1,000,000 1,600,000

Mass kg 2.5 4.0 6.5 12 Protection structure Totally enclosed self-cooled type (IP44)

Environmental conditions Operating temperature: 0 to 40℃/Storage temperature: -20 to 60℃ Operating humidity/storage humidity: 20 to 80%RH (no condensation) Resistance to vibration: 24.5 m/s2 (frequency: 10 to 400Hz)/Shock resistance: 294 m/s2 No dust, no metal powder, no corrosive gas, no inflammable gas, no oil mist To be used indoors, no direct sunlight Altitude: less than 1,000 m above sea level

Motor insulation Insulation resistance: 100MΩ or more (by DC500V insulation tester) Dielectric strength: AC1,500V/1 min Insulation class: F

Mounting direction Can be installed in any direction. *1: The table shows typical output values of actuators. *2: When combined with a HA-800 driver. *3: The output shaft resolution is (motor shaft encoder resolution when multiplied by 4) x (reduction ratio).

1-5 External dimensions

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Incremental model Unit: mm (third angle projection) FHA-17C-xx-E250

FHA-25C-xx-E250 Note: For details on external dimensions, check our illustrated specifications.

0.3mm2X2sets with shieldEncoder cable

0.5mm2X6-cores with shield Motor cable

57 (with brake 72.5)

78±1(with brake 93.5±1)

(Ground: Green/Yellow

Length: 1000 mm +200 / 0 Length: 1000 mm +200 / 0


Encoder cableMotor cable 0.5mm2X6-cores with shield 0.3mm2X2sets with shield

(Ground: Green/Yellow)

65.5 (with brake 85)

90.5±1(with brake 110±1)


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Unit: mm (third angle projection) FHA-32C-xx-E250

FHA-40C-xx-E250

Note: For details on external dimensions, check our illustrated specifications.

0.75mm2X6-cores with shield


0.3mm2X2sets with shield

89.5 (with brake 110)111.5±1(with brake 132±1)

Encoder cableMotor cable



Encoder cableMotor cable0.75mm2X6-cores with shield


0.3mm2X2sets with shield

97 (with brake 118)127±1(with brake 148±1)

1-6 Mechanical accuracy

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1-6 Mechanical accuracy The mechanical accuracies of the output shaft and mounting flange are shown below for FHA-C series actuators: Mechanical accuracy unit: mm

Accuracy items FHA-17C FHA-25C FHA-32C FHA-40C 1. Output shaft surface runout 0.010 0.012 0.012 0.014 2. Deflection of output shaft 0.010 0.012 0.012 0.014 3. Parallelism between the

output shaft end mounted surface

0.040 0.050 0.050 0.060

4. Concentricity between the output shaft and fitting part 0.040 0.050 0.050 0.060

Note: All values are T.I.R. (Total Indicator Reading). The measuring for the values are as follows: 1 Output shaft surface runout

The indicator on the fixed part measures the axial runout (maximum runout width) of the outermost circumference of output shaft of the output rotary unit per revolution.

2 Deflection of output shaft The indicator on the fixed part measures the radial runout (maximum runout width) of output shaft of the output rotary unit per revolution.

3 Parallelism between the output shaft and mounted surface The indicator on the output rotary unit measures the axial runout (maximum runout width) of the outermost circumference of the mounting surface (both on the output shaft side and opposite side) of the output rotary unit per revolution.

4 Concentricity between the output shaft and fitting part The indicator on the output rotary unit measures the radial runout (maximum runout width) of the fitting part (both on the output shaft side and opposite side) of the output rotary unit per revolution.

A 4 ◎

2 A

B

1

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3 B

3 B

(2)

(1)

(4)

(4)

(3)

(3)

1-7 Uni-directional positional accuracy

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1-7 Uni-directional positional accuracy The uni-directional positional accuracy means the maximum positional difference between the actual rotated angle from the datum position and its theoretical rotational angle in one revolution when series of positioning are performed in the same rotation direction. (Refer to JIS B-6201-1987.) FHA-C series actuators house the speed reducer HarmonicDrive® for precision control, so positioning errors of the motor shaft are compressed by the speed reducer to 1/50, 1/100 or 1/160. Actually, the angle transmission error of the speed reducer determines the uni-directional positional accuracy. As a result, the measured angle transmission error of the speed reducer is indicated as the uni-directional positional accuracy of the FHA-C series. The uni-directional positional accuracy is shown in the table below:

Model Item

FHA-17C FHA-25C FHA-32C FHA-40C 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160

Uni-directional positional accuracy Sec. 60 40 40 40 30 30 40 30 30 40 30 30

Datum position

Actual stop position

Commanded stop position

Positioning error

1-8 Resolution of output shaft

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1-8 Resolution of output shaft The motor of the FHA-C series actuator is equipped with a 2,500-pulse/revolution encoder (incremental model). Encoder signals are electrically quadruplicated. The motor output speed is reduced to 1/50, 1/100 or 1/160 using the speed reducer HarmonicDrive® for precision control. Accordingly, the resolution per a single revolution is 50, 100 or 160 times. All together, this allows for high resolution results as shown in the table below: Encoder specification Incremental

Encoder resolution 2,500 (10,000: when multiplied by 4) Reduction ratio 1:50 1:100 1:160

Resolution of output shaft Pulse/rev 500,000 1,000,000 1,600,000

Resolvable angle per pulse

(approximate value) Sec. Approx. 2.6

Approx. 1.3

Approx. 0.8

1-9 Rigidity

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1-9 Rigidity

Moment stiffness The moment stiffness refers to the torsional stiffness when a load is applied to the output shaft of the actuator, as shown in the figure. For example, when a load is applied to the end of an arm attached on the output shaft of the actuator, the face of the output shaft of the actuator tilts in proportion to the moment load. The moment stiffness is expressed as the load/gradient angle.

Model Item FHA-17C FHA-25C FHA-32C FHA-40C

Moment stiffness

N･m/rad 220×103 490×103 790×103 1400×103 kgf･m/rad 22×103 50×103 80×103 140×103

kgf･m/arc-min 6.5 15 23 42 Do not apply torque, load or thrust to the sleeve (hollow shaft)

directly. The sleeve (hollow shaft) is adhered to the output rotary shaft. Accordingly, the

adhered sleeve may be detached from the output rotary shaft if a torque or load is applied to the sleeve (hollow shaft).

Do not apply any torque, moment load or thrust load directly to the sleeve (hollow shaft).

CAUTION

Load

Gradient

Sleeve (hollow shaft)

Output shaft

1-9 Rigidity

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Torsional stiffness If a torque is applied to the output shaft of the actuator with the servo locked, the output shaft generates a torsional stress roughly in proportion to the torque. The upper right figure shows the torsional angle of the output shaft when a torque starting from zero and increased to positive side [+T0] and negative side [–T0] is applied to the output shaft. This is called [torque vs. torsional angle] diagram, which typically follows a loop 0→A→B→A’→B’→A. The torsional rigidity of the FHA-C series actuator is expressed by the gradient of this [torque vs. torsional angle diagram] representing a spring constant (unit: Nm/rad).

As shown by lower right figure, this [torque vs. torsional angle] diagram is divided into three regions and the spring constants in these regions are expressed by K1, K2, and K3, respectively. K1：Spring constant for torque region 0 to T1 K2：Spring constant for torque region T1 to T2 K3：Spring constant for torque region over T2 The torsional angle for each region is expressed as follows:

Range where torque T is T1 or below: Range where torque T is T1 to T2: Range where torque T is T2 to T3: The table below shows the averages of T1 to T3, K1 to K3, and θ1 to θ2 for each actuator.

Model FHA -17C FHA -25C FHA-32C FHA -40C Reduction ratio 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160

T1 N･m 7.0 7.0 7.0 29 29 29 54 54 54 108 108 108

kgf･m 0.7 0.7 0.7 3.0 3.0 3.0 5.5 5.5 5.5 11 11 11

K1 x104 N･m/rad 1.1 1.3 1.3 4.7 6.1 6.1 8.8 11 11 17 21 21

kgf･m/arc min 0.32 0.4 0.4 1.4 1.8 1.8 2.8 3.2 3.2 5.0 6.3 6.3

θ1 x10-4 rad 6.4 5.1 5.1 6.2 4.8 4.8 6.1 4.9 4.9 6.4 5.1 5.1

arc min 2.2 1.8 1.8 2.1 1.7 1.7 2.1 1.7 1.7 2.2 1.8 1.8

T2 N･m 25 25 25 108 108 108 196 196 196 382 382 382

kgf･m 2.5 2.5 2.5 11 11 11 20 20 20 39 39 39

K2 x104 N･m/rad 1.3 1.7 1.7 6.1 7.7 7.7 11 14 14 21 29 29

kgf･m/arc min 0.4 0.5 0.5 1.8 2.3 2.3 3.4 4.2 4.2 6.3 8.5 8.5

θ2 x10-4 rad 19.5 15.6 15.6 19.2 15 15 19.1 15.1 15.1 19.3 14.7 14.7

arc min 6.7 5.4 5.4 6.6 5.1 5.1 6.4 5.2 5.2 6.6 5.0 5.0

K3 x104 N･m/rad 2.0 2.5 2.5 8.4 11 11 15 20 20 30 37 37

kgf･m/arc min 0.6 0.75 0.75 2.5 3.3 3.3 4.5 5.8 5.8 9 11 11

The table below shows reference torque values calculated for different torsional angle. (Unit: N･m)

Model FHA -17C FHA -25C FHA-32C FHA -40C Reduction ratio 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160

2 arc min 6.3 8.1 8.1 27 37 37 51 63 63 98 129 129 4 arc min 14 18 18 62 82 82 117 148 148 220 300 300 6 arc min 22 29 29 97 136 136 179 243 243 340 490 490

3

22

KTT −

+θ=ϕ

2

11

KTT −

+θ=ϕ1K

T=ϕ

ねじり角

Torsional angle

Torsional angle

Hysteresis loss

Torque

Torque

angle Torsional * :ϕ

1-10 Rotation direction

1-12

1

2

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6

7

8

9

10

11

付

Outlines

1-10 Rotation direction Forward rotation direction of the actuator is defined as clockwise (CW) rotation as viewed from the load shaft when a FWD rotation command is given to a FHA-C series actuator from a HA-800 driver. This rotation direction can be changed on the HA-800 driver by selecting [SP50: Command polarity setting]. Setting of [SP50: Command polarity]

Set value Forward input Reverse input Setting

0 FWD rotation Reverse Default 1 Reverse FWD rotation

FWD rotation: Clockwise

1-11 Shock resistance

1-13

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2

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6

7

8

9

10

11

付

Outlines

1-11 Shock resistance The shock acceleration with the actuator central shaft mounted horizontally and when impact is applied in the vertical and horizontal directions is as follows: Shock acceleration: 294 m/s2 However, avoid all direct impact with the output shaft.

Shock resistance test

Horizontal installation

Right Left

Up

Down

1-12 Resistance to vibration

1-14

1

2

3

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5

6

7

8

9

10

11

付

Outlines

1-12 Resistance to vibration The resistance to vibration of the actuator is as follows, and this value is the same in up/down, left/right and front/rear directions: Vibration acceleration: 24.5 m/s2 (frequency: 10 to 400Hz)

Rear

Right Left

Up

Down

Front

Resistance to vibration test

1-13 Operable range

1-15

1

2

3

4

5

6

7

8

9

10

11

付

Outlines

1-13 Operable range The graph on the next page indicates the operable range when an FHA-C actuator and HA-800 driver are selected with approximate estimation. To use FHA-C series actuators at maximum output, refer to [Chapter 2 FHA-C series selection]. 1. Continuous motion range The range allows continuous operation for the actuator. 2. 50% duty motion range This range indicates the torque rotation speed which is operable in the 50% duty operation (the ratio of operating time and delay time is 50:50). For details on duty, refer to [Examining duty] (P2-10). 3. Motion range during acceleration and deceleration This range indicates the torque rotation speed which is operable momentarily. The range allows instantaneous operation like acceleration and deceleration, usually. The continuous and 50% duty motion ranges in each graph are measured on the condition where the radiation plate specified in the graph is installed.

1-13 Operable range

1-16

1

2

3

4

5

6

7

8

9

10

11

付

Outlines

Motion range during acceleration and deceleration

50% duty motion range

Radiation plate: 300x300x15(mm)

Torq

ue [N

m]

Continuous motion range

Rotation speed [r/min]





Torq

ue [N

m]



■FHA-17C-160




Torq

ue [N

m]



Torq

ue [N

m]







Torq

ue [N

m]

Rotation speed[r/min]



■FHA-25C-160



Torq

ue [N

m]




1-13 Operable range

1-17

1

2

3

4

5

6

7

8

9

10

11

付

Outlines

■FHA-32C-100



Torq

ue [N

m]




■FHA-32C-160



Torq

ue [N

m]







Torq

ue [N

m]



■FHA-40C-160



Torq

ue [N

m]







Torq

ue [N

m]

50% duty motion range Continuous motion range


■FHA-32C-50



Torq

ue [N

m]



1-14 Cable specifications

1-18

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Outlines

1-14 Cable specifications The following tables show specifications of the motor and encoder cables of the SHA series actuators.

Motor cable specifications

Color Name Without brake With brake Red Motor phase-U Motor phase-U

White Motor phase-V Motor phase-V Black Motor phase-W Motor phase-W

Green/yellow PE PE Blue No connection Brake

Yellow No connection Brake (Shield) FG FG

Incremental encoder model encoder lead line

Color Signal name Remarks Red ＋5V

Power supply input Black 0V Yellow SD Serial signal differential output Blue

Shield FG

SD

1-14 Cable specifications

1-19

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2

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7

8

9

10

11

付

Outlines

Chapter 2

FHA-C series selection

This chapter explains how to select a proper FHA-C series actuator.

2-1 Allowable load inertia moment ················································· 2-12-2 Change in load inertia moment ················································ 2-22-3 Verifying and examining load weights ············································· 2-32-4 Examining operating status ···················································· 2-7

2-1 Allowable load inertia moment

2-1

1

2

3

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5

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7

8

9

10

11

付

Selection guidelines

2-1 Allowable load inertia moment To achieve high accuracy and performance, select a FHA-C series actuator where the allowable load inertia moment (reference value) specified for the applicable model No. is not exceeded. Refer to [A-2 Calculating inertia moment] (P5-3) for the calculation of inertia moment. When temporarily selecting an actuator, make certain that the inertia moment and maximum rotational speed do not exceed the allowable values shown in the table below.

Actuator model FHA-17C FHA-25C FHA-32C FHA-40C 50 100 160 50 100 160 50 100 160 50 100 160 Reduction ratio 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 Max.

rotational speed

r/min 96 48 30 90 45 28 80 40 25 70 35 22

Actuator inertia

moment

kg･m2 0.17 0.67 1.7 0.81 3.2 8.3 1.8 7.1 18.1 4.9 19.5 50 kgf･cm･s2 1.7 6.9 17 8.3 33 85 18 72 185 50 200 510

Allowable load inertia

moment

kg･m2 0.54 2.1 5.1 2.4 10 25 5.4 21 54 15 60 150 kgf･cm･s2 5.4 21 52 24 100 260 55 210 550 150 610 1500

Allowable load inertia moment (kgf･cm･s2) (kg･m2)

FHA-17C-50 FHA-17C-100

FHA-17C-160 FHA-25C-50

FHA-32C-50

FHA-40C-50 FHA-25C-100

FHA-32C-100

FHA-40C-100 FHA-40C-160

FHA-32C-160

Max. rotational speed (r/min)

FHA-25C-160

0.1

1

10

100

1000

2-2 Change in load inertia moment

2-2

1

2

3

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5

6

7

8

9

10

11

付


2-2 Change in load inertia moment FHA-C series actuators include HarmonicDrive® gearing that has a high reduction ratio. Because of this, the effects of change in load inertia moment on the servo performance are minimal. In comparison to direct servo drive mechanisms, therefore, this benefit allows the load to be driven with a better servo response. For example, assume that the load inertia moment increases to N-times. The total inertia moment converted to motor shaft which has an effect on servo response is as follows: The symbols in the formulas are: JS: Total inertia moment converted to motor shaft JM: Inertia moment of motor R: Reduction ratio of FHA-C series actuator L: Ratio of load inertia moment to inertia moment of motor N: Rate of change in load inertia moment Direct drive Before: After: Ratio:

Driven by FHA-C series Before: After: Ratio:

In the case of the FHA-C series, this is an extremely large number, such as R = 50, R = 100 or R = 160, that is R2 = 2500, R2 = 10000, or R2 = 25600. Then the ratio is Js'/Js ≒ 1. This means that FHA-C drive systems are hardly affected by the load variation. Therefore, it is not necessary to take change in load inertia moment into consideration when selecting a FHA-C series actuator or setting up the initial driver parameters.

( )L1JJ M +＝Ｓ ( )NL1J'J M +＝Ｓ L1NL1/JsJs'++

＝

+ 2R

L1JJ M＝Ｓ

+ 2R

NL1J'J M＝Ｓ2

2

R/L1R/NL1/JsJs'

+

+＝

2-3 Verifying and examining load weights

2-3

1

2

3

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5

6

7

8

9

10

11

付


2-3 Verifying and examining load weights The FHA-C series actuator incorporates a precise cross roller bearing for directly supporting an external load (output flange). To demonstrate the full ability of the actuator, verify the maximum load weight as well as the life and static safety coefficient of the cross roller bearing. Checking procedure 1 Verify maximum load weight (Mmax, Frmax, Famax)

Determine maximum load weight (Mmax, Frmax, Famax) ↓

Verify that maximum load weight (Mmax, Frmax, Famax) ≦ than permissible load (Mc, Fr, Fa) 2 Verifying life

Calculate the average radial load (Frav) and average axial load (Faav). ↓ Calculate the radial load coefficient (X) and the axial load coefficient (Y). ↓ Calculate the life of the bearing and verify the life is allowable.

3 Verifying the static safety coefficient Calculate the static equivalent radial load (Po). ↓ Verify the static safety coefficient (fs).

Specifications of the main roller bearing The following table shows the specifications of the main roller bearings built in SHA actuators. Table 1: Specifications of the main roller bearings

Item Model

Circular pitch of the roller (dp)

Offset amount

(R)

Basic dynamic

rated load (C)

Basic static rated load (Co)

Permissible radial load (Fr)

Permissible axial load

(Fa)

Permissible moment

capacity (Mc)

mm mm kN kN N N N･m FHA-17C 0.077 0.017 10800 18700 2940 9800 188 FHA-25C 0.0962 0.018 18000 33300 4900 14700 370 FHA-32C 0.1122 0.0185 24100 44300 9500 24500 530 FHA-40C 0.1488 0.0265 44900 88900 14700 39200 690


2-4

1

2

3

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5

6

7

8

9

10

11

付


Maximum load weights How to calculate the maximum load weights (Mmax, Frmax, Famax) is explained below. Confirm that each maximum load weight is equal to or less than each permissible load.

Verifying life Calculating average loads (average radial and axial loads, average output rotational speed) When the radial and/or axial loads vary during motion, calculate and verify the life of the cross roller bearing converting the loads to their average values.

◆ Formula (1): Maximum load weights

Mmax ＝ Frmax･(Lr+R) + Famax･La

Symbols used in the formula

Mmax Maximum moment capacity N･m (kgf･m)

Frmax Max. radial load N Refer to Fig.1. Famax Max. axial load N Refer to Fig.1. Lr ,La ―――― mm Refer to Fig.1. R Offset amount mm Refer to Fig.1 and Table 1.

◆ Formula (2): Average radial load (Frav)

nn

10/3nnn

10/310/310/3

tntntn

FrtnFrtnFrtnFr

2211

222111

+++

+

=

av

The maximum radial load in section t1 is given by Fr1, while the maximum radial load in section t3 is given by Fr3.

◆ Formula (3): Average axial load (Faav)

nn

10/3nnn

10/310/310/3

tntntn

FatnFatnFatnFa

2211

222111

+++

+

=

av

The maximum axial load in section t1 is given by Fa1, while the maximum axial load in section t3 is given by Fa3.

◆ Formula (4): Average output rotational speed (Nav)

n

nnttt

tntntnN

21

2211

++++++

=

av

Time

+ Radial load -

Fr1

Fr2

Fr3

Time

+ Axial load -

Fa1

Fa2

Fa3

Time

+ Output rotational speed -

n1 n2

n3

t1 t2 t3

Fig. 2: Illustration of load variation

Fr

Fa

La

Lr R

Load

Actuator

dp

Fig. 1: External load action diagram


2-5

1

2

3

4

5

6

7

8

9

10

11

付


Radial load coefficient and axial load coefficient Table 2: Radial load coefficient (X), axial load coefficient (Y)

◆ Formula (5) ＸＹ

5.1La)/dpFaR)(Lr2(FrFr

Fa≤

⋅+++ avavavav

1 0.45

1.5La)/dpFaR)(Lr2(FrFr

Fa>

⋅+++ avavavav

0.67 0.67

Dynamic equivalent radial load Life of cross roller bearing Calculate the life of cross roller bearing with the formula (7):

Symbols used in the formulas Frav Average radial load N(kgf) Refer to the average load. Faav Average axial load N(kgf) Refer to the average load. Lr ,La ―――― mm Refer to Fig.1. R Offset amount m Refer to Fig.1 and Table 1. dp Pitch circle diameter of a roller m Refer to Fig.1 and Table 1.

◆ Formula (7): Cross roller bearing life 10/36

10B PcfwC

N6010L

⋅×

×=− av

Symbols used in the formulas

LB-10 Life hour ―

Nav Average output rotational speed r/min Obtained by formula (4).

C Basic dynamic rated load N(kgf) Refer to Table 1.

Pc Dynamic equivalent radial load N(kgf) Obtained by formula (6).

fw Load coefficient － Refer to Table 3.

◆ Formula (6): Dynamic equivalent radial load

avavav

av FaYdp

La)FaR)(Lr2(FrFrXPc ⋅+

⋅+++⋅=


Pc Dynamic equivalent radial load N(kgf)

Frav Average radial load N(kgf) Obtained by formula (2). Faav Average axial load N(kgf) Obtained by formula (3).

dp Pitch circle diameter of a roller m Refer to Table 1.

X Radial load coefficient － Refer to Table 2. Y Axial load coefficient － Refer to Table 2. Lr，La － m Refer to Fig.1. R Offset amount m Refer to Fig.1 and Table 1.

Table 3: Load coefficient

Loaded state fw Smooth operation free from impact/vibration 1 to 1.2

Normal operation 1.2 to 1.5 Operation subject to impact/vibration 1.5 to 3


2-6

1

2

3

4

5

6

7

8

9

10

11

付


Cross roller bearing life based on oscillating movement Use formula (8) to calculate the cross roller bearing life against oscillating movement.

If the oscillating angle is 5° or less, fretting wear may occur because oil film does not form effectively on the contact surface between the race and rolling element of the cross roller bearing. In such cases, consult HDS.

Verifying static safety coefficients Static equivalent radial load

Static safety coefficient Generally, the static equivalent load is limited by the basic static rated load (Co). However, the specific limit should be calculated according to the using conditions and required conditions. In this case, calculate the static safety coefficient (fs) by formula (10). Table 4 shows general values representing using conditions. Calculate the static equivalent radial load (Po) by formula (9).

◆ Formula (8): Cross roller bearing life (oscillating)

10/36

PcfwC90

n6010Loc

1

⋅

×θ

××

=


Loc Life hour ―

n1 Number of reciprocating oscillation per min. cpm ―

C Basic dynamic rated load N(kgf) Refer to Table 1. Pc Dynamic equivalent radial load N(kgf) Obtained by formula (6). fw Load coefficient － Refer to Table 3. θ oscillating angle/2 － Refer to Fig.3.

◆ Formula (10): Static safety coefficient

PoCofs =


fs Static safety coefficient － Refer to Table 4. Co Basic static rated load N(kgf) Refer to Table 1. Po Static equivalent radial load N(kgf) Obtained by formula (9).

◆ Formula (9): Static equivalent radial load

maxmaxmax Fa44.0dp

2MFrPo ++=


Frmax Max. radial load N(kgf) Refer to Fig.1. Famax Max. axial load N(kgf) Refer to Fig.1.

Mmax Max. moment load N･m (kgf･m)

Refer to the maximum load weight calculation methods.

dp Pitch circle diameter of a roller mm Refer to Table 1.

Table 4: Static safety coefficients Using conditions fs High rotational accuracy is required, etc. ≧3

Operation subject to impact/vibration ≧2

Normal operation ≧1.5

Oscillating angle

θ

Fig. 3: Oscillating movement

2-4 Examining operating status

2-7

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2-4 Examining operating status When the operation pattern (duty cycle) is such that the actuator starts and stops repeatedly, starting current and braking current flow through the motor at high frequency and the actuator generates heat. Therefore, the duty cycle must be examined. The study is as follows:

Examining actuator rotation speed Calculate the required rotation speed (r/min) of the load driven by the FHA-C series. For linear operation, use the rotation speed conversion formula below: Select an appropriate reduction ratio from 11, 51, 81, 101, 121 and 161 so that the calculated rotation speed does not exceed the maximum rotational speed of the FHA-C series actuator.

Calculating and examining load inertia moment Calculate the load inertia moment of the load driven by the FHA-C series actuator. Refer to [A-2 Calculating inertia moment] (P5-3) for the calculation. Based on the calculated result, tentatively select a FHA-C series actuator by referring to [Allowable load inertia moment] (P2-1).

(mm) pitch feedScrew (mm/min) speed travel Linear(r/min) speed Rotation ＝

Linear travel speed (mm/min)

100 1000 3000 30 300 1

10

30

3

100r/min 70r/min

50r/min

35r/min

Screw pitch (mm) Rotation speed (r/min)

20r/min


2-8

1

2

3

4

5

6

7

8

9

10

11

付


Load torque calculation Calculate the load torque as follows:

Rotary motion The rotary torque for the rotating mass W on the ring of radius r from the center of rotation is shown in the figure to the right.

T : Rotary torque (Nm) μ : Friction coefficient W : Mass (kg) r : Average radius of friction side (m)

The right graph gives a calculation example when the friction coefficient μ is assumed as 0.1 and the horizontal axis and vertical axis represent mass and rotational radius of friction side, respectively. The actuator toque value shown in the graph indicates 20% of the maximum torque.

Linear operation (horizontal operation) The rotary torque when the mass W moves horizontally due to the screw of pitch P is shown below.

T : Rotary torque (Nm) μ : friction coefficient W : mass (kg) P : Screw feed pitch (m)

Linear operation (vertical operation) The rotary torque when the mass W moves vertically due to the screw of pitch P is shown below.

Mass: W Pitch: P

Friction: μ

π×××µ×=

2PW8.9T

π×××=

2PW8.9T

Pitch: P

Mass: W

rW8.9T ××µ×=Radius: r

Mass: W

Friction: μ

Example of rotary torque calculation (friction coefficient = 0.1) FHA: 20% torque of maximum torque is shown.

Mass W (kg)

Rad

ius

r of f

rictio

n si

de (m

m)

10 10

100

300

30

100 1000 3000 30 300

1 N･m

FHA-40C-50

FHA-17C-50

300 N･m

7 N･m

10 N･m

100 N･m 20 N･m 200 N･m 50 N･m

30 N･m

5 N･m

3 N･m

2 N･m

FHA-25C-50

FHA-32C-50


2-9

1

2

3

4

5

6

7

8

9

10

11

付


Acceleration time and deceleration time Calculate acceleration and deceleration times for the selected actuator.

Acceleration time:

Deceleration time:

ta: Acceleration time (s) td: Deceleration time (s) k: Acceleration reduction coefficient 1 to 1.5

The total positioning time may become shorter if the acceleration is lowered for the purpose of reducing the settling time after positioning.

JA: Actuator inertia moment (kg･m2) JL: Load inertia moment (kg･m2) N: Actuator rotation speed (r/min) TM: Maximum actuator torque (N･m) TF: Actuator friction torque (N･m)

TF=KT x IR－TR KT: Torque constant (N･m/A) TR: Allowable continuous torque (N･m) IR: Allowable continuous current (A)

TL: Load torque (Nm); The polarity is positive (+) when the torque is applied in the rotation direction, or negative (-) when it is applied in the opposite direction.

Calculation example 1 Select an actuator that best suits the following operating conditions: ・Rotation speed: 60 r/min ・Load inertia moment: 1.5 kg･m2 ・Since the load mechanism is mainly inertia, the load torque is negligibly small.

(1) After applying these conditions to the graph in [2-1], FHA-25C-50 is tentatively selected. (2) From the rated table in 1-4, the following values are obtained: JA = 0.81 kg･m2, TM = 150 N･m,

KT = 22 N･m/A, IM = 7.3 A. (3) Based on the above formula, the actuator's friction torque TF is calculated as 22 x 7.3 - 150 =

10.6 N･m. (4) Therefore, the acceleration time and deceleration time can be obtained as follows from the

above formulas: ta = (0.81+1.5) x 2 x π/60 x 60/150 = 0.097 s td = (0.81+1.5) x 2 x π/60 x 60/(150+2 x 10.6) = 0.085 s

(5) If the calculated acceleration/deceleration times are too long, correct the situation by: ・Reducing load inertia moment ・Selecting an actuator with a larger frame size

ta td

N

Time

Rotation speed

( )LM

LAa

TT

N

60

π2JJkt

−×

××+×=

( )LFM

LAd

TT2T

N

60

π2JJkt

+×+×

××+×=


2-10

1

2

3

4

5

6

7

8

9

10

11

付


Duty coefficient (for FHA-25C-50)

Examining duty During the selecting process of the FHA-C series, the temporal variability of torque and rotation speed need to be taken into account. During acceleration or deceleration in particular, a large amount of electricity flows to generate a large amount of torque, resulting in a greater amount of heat. Using the following formula, calculate the duty: %ED when the actuator is operated repeatedly in the drive pattern shown to the right.

ta : Acceleration time from speed 0 to N (s) td : Deceleration time from speed N to 0 (s) tr : Operation time at constant speed N (s) t : Cycle time (s) KLa : Duty coefficient during acceleration time KLr : Duty coefficient during constant speed operation time KLd : Duty coefficient during deceleration time How to obtain KLa, KLr and KLd and example of duty calculation 2

The following description uses the FHA-25C-50 duty coefficient graph in the figure below as an example. Operating conditions: As in calculation example 1, accelerate an inertia load at the maximum torque of the actuator, operate it at a constant speed, and then decelerate it at the maximum torque. The travel angle per cycle is 120° and the cycle time is 2 seconds. (1) KLa, KLd: Obtain KLa = KLd = 7 in the following figure from an average speed of 30 r/min when

the rotation speed changes from 0 to 60 r/min. (2) KLr: Tr ≒ 0 due to inertia load, so KLr = 1 from the figure below. (3) The travel angle is calculated from the area of the rotation speed vs. time diagram shown

above. Then, the travel angle is θ = (N / 60) x {tr + (ta + td) / 2} x 360 Then, tr = θ/ (6 x N) – (ta + td) / 2 When θ = 120°, and ta = 0.097 (s), td = 0.085 (s), N = 60 (r/min) in calculation example 1

are applied to this formula, tr is calculated as 0.242 (s). (4) Now, apply cycle time t = 2 (s) to the %ED calculation formula above to calculate the duty.

%ED = (7 x 0.097 + 1 x 0.242 + 7 x 0.085) / 2 x 100 = 76%

The value that was obtained is 100 or less,so serial repetitive operation is possible. If this value is 100 or above,

◆the operation pattern ◆load (possible reduction) ◆actuator model No. etc., must be reexamined

Torque [N･m

]

100t

tKtKtKED% dLdrLraLa ××+×+×=

ta td

N

tr Time

Rotation speed

t: Cycle time

ts

ts: Stopped time

Torque

Time

Tr

Ta,Tr,Td:Output torques

Ta

Td


0

20

40

60

80

100

120

140

160

180

0 10 20 30 40 50 60 70 80 90 100

8

KL=0.5

1 1.5

3

2

4 5

6 7

Range of operation

(1) KLa, KLd

(2) KLr


2-11

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2

3

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5

6

7

8

9

10

11

付


Duty coefficient


Radiation plate：300x300x15(mm) Range of operation

Torque [N･m

]

放熱板：300x300x15(mm)

トルク

[N

m]


放熱板：300x300x15(mm)

トルク

[N

m]


トルク

[N

m]


放熱板：350x350x18(mm)

トルク

[N

m]


放熱板：350x350x18(mm)

トルク

[N

m]


Range of operation

Range of operation

Range of operation

Range of operation

Range of operation

Radiation plate：300x300x18(mm)





Torque [N･m

] Torque [N

･m]

Torque [N･m

] Torque [N

･m]

Torque [N･m

]


2-12

1

2

3

4

5

6

7

8

9

10

11

付


運転可能領域

トルク

[N

m]


運転可能領域放熱板：400x400x20(mm)

トルク

[N

m]


運転可能領域

放熱板：400x400x20(mm)

トルク

[N

m]

放熱板：500x500x25(mm)

トルク

[N

m]

運転可能領域放熱板：500x500x25(mm)

トルク

[N

m]

トルク

[N

m]



Range of operation

Range of operation

Range of operation

Range of operation






Range of operation


Torque [N･m

] Torque [N

･m]

Torque [N･m

]


Range of operation Radiation plate：500x500x25(mm)

Torque [N･m

] Torque [N

･m]

Torque [N･m

]


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Examining effective torque and average rotation speed Examine the two points below for effective torque and average rotation speed. (1) Is the effective torque at or bellow the allowable continuous torque? (2) Is the average rotation speed at or below the permissible continuous rotational speed? Use the following equation to calculate the effective torque Tm and average rotation speed Nav during consecutive cycle operation as shown in [2-4 Examining duty].

Tm: Effective torque (N･m) Ta: Max. torque (N･m ) Tr: Load torque (N･m) ta: Acceleration time (s)，td: Deceleration time (s) tr: Operation time at constant speed (s)，t: Cycle time (s) Nav: Average rotation speed (r/min) N: Rotation speed at constant speed (r/min)

If the result of calculating the effective torque according to the equation above exceeds the allowable continuous torque shown in the table below, attempt to reduce the duty.

Model Item

FHA-17C FHA-25C FHA-32C FHA-40C 50 100 160 50 100 160 50 100 160 50 100 160

Reduction ratio 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 1:50 1:100 1:160 Allowable

continuous torque

N･m 15 24 24 35 75 85 60 130 200 85 190 300

Permissible continuous

rotational speed r/min 70 35 22 70 35 22 60 30 19 50 25 16

Calculation example 3: Examining effective torque and average rotation speed

Use the operating conditions from calculation examples 1 and 2 to examine the effective torque and average rotation speed.

(1) Examining effective torque Apply the following to the equation above: Ta = 150 N･m, Tr = 0 N･m, ta = 0.097 s, tr = 0.243 s, td = 0.085 s, t = 2 s.

This value exceeds the allowable continuous torque of FHA-25C-50 tentatively selected in calculation example 1, and continuous operation is not possible in the cycle of calculation example 2. The following formula is a modified version of the formula for effective torque. By applying the value of allowable continuous torque to Tm in this formula, the allowable cycle time can be calculated. Apply the following: Ta = 150 N･m, Tr = 0 N･m, Tm = 35 N･m, ta = 0.097 s, tr = 0.243 s, td = 0.085 s. Then, Then, setting the cycle time to 3.4 seconds or more gives Tm = 34.0 N･m or less, thereby permitting continuous operation within the allowable continuous torque.

( )t

tTttTT r2

rda2

am

×++×=

tt2NtNt2NN draav ×+×+×=

( ) mN 452.0

085.00.097150T2

m ･=+×

=

( ) 34.335

085.0097.0150t 22

=+×

=

( )2

m

r2

rda2

a

TtTttTt ×++×=


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(2) Examining average rotation speed

Apply the following to calculate the speed: N = 60 r/min, ta = 0.097 s, tr = 0.242 s, td = 0.085 s, t = 3.4 s. This value is within the permissible continuous rotational speed (70 r/min) of FHA-25C-50 shown in the table above, so it can be used.

min/r88.53.4

085.0260242.060097.0260Nav =×+×+×=


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Chapter 3

Actuator installation

The following explains the installation procedures of the actuators.

3-1 Receiving Inspection ····························································· 3-13-2 Notices on handling ······························································· 3-33-3 Location and installation ························································· 3-4

3-1 Receiving Inspection

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Installing the SHA actuator

3-1 Receiving Inspection Check the following items after unpacking the package.

Inspection procedure 1 Check the items thoroughly for damage sustained during transportation.

If any item is damaged, immediately contact the dealer.

2 Check if the actuator is what you ordered. The nameplate is found on the side of the FHA-C series actuator. Check the TYPE field on the nameplate to confirm that it is indeed the model you have ordered. If any item is wrong, immediately contact the dealer. The model code indicates the following information:

Refer to the [1-2 Model]（P1-2） in this manual for details of the model codes.

3 Check if the driver combinations are correct. The applicable FHA-C series actuator models are shown in the ADJUSTED FOR USE WITH field of the nameplate on the HA-800 driver. Make sure your actuator is combined with the correct driver.

Only connect the actuator specified on the driver label. The characteristics of this driver have been adjusted according to the actuator.

Wrong combinations of drivers and actuators may cause low torque problems or overcurrent that may cause burned damage to the actuator, injury or fire.

4 Check if the driver input voltages being input are correct. The driver's model code is shown in the TYPE field of the driver's nameplate.The last three digits of this model code indicate the input voltage to be input.

200: indicates a 3-phase/single-phase 200VAC power supply. 100: indicates a single phase 100VAC power supply.

If the voltage to be supplied is different from the label voltage, immediately contact the dealer it was purchased from.

FHA-C series actuator

Model：17, 25, 32, 40

Reduction ratio of HarmonicDrive®

Version symbol

Encoder resolution 

Encoder type

Option code

FHA-17 C-50-E 250-□

CAUTION

3-1 Receiving Inspection

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Do not connect a supply voltage other than the voltage specified on the driver label.

Connecting a power supply not matching the input voltage specified on the nameplate may result in damage to the driver, injury or fire.

CAUTION

3-2 Notices on handling

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3-2 Notices on handling Handle the FHA-C series actuator carefully by observing the notices specified below.

（1） Do not apply any excessive force or impact, especially to the actuator's output shaft.

（2） Do not put the FHA-C series actuator on a table, shelf, etc., where the actuator could easily fall.

（3） Do not connect the actuator terminals directly to the power supply. The actuator may burn and cause fire or electric shock.

（4） The allowable storage temperature is -20 to +60℃. Do not expose the actuator to direct sunlight for long periods of time or store it in areas in low or high temperature.

（5） The allowable relative storage humidity is 80% or less. Do not store the actuator in a very humid place or in areas where temperatures are likely to fluctuate greatly during day and night.

（6） Do not use or store the actuator in locations subject to corrosive gases or dust particles.

CAUTION

3-3 Location and installation

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Environment of location The environmental conditions of the installation location for FHA-C series actuators must be as follows. Determine an appropriate installation location by observing these conditions without fail. ◆ Operating temperature: 0 to 40℃

The temperature in the cabinet may be higher than the atmosphere depending on the power loss of housed devices and size of the cabinet. Plan the cabinet size, cooling system, and device locations so the ambient temperature of the actuator is kept 40℃ or below.

◆ Operating humidity: Relative humidity of 20 to 80%. Make sure no condensation occurs. Take note that condensation is likely to occur in a place where there is a large temperature change between day and night or when the actuator is started/stopped frequently.

◆ Vibration: 25 m/s2 (2.5G) (10 to 400Hz) or less

◆ Impact: 294 m/s2 (30G) or less

◆ Use environment: Free from dust, condensation, metal powder, corrosive gases, water, oil mist, etc.

◆ Protection class: Standard products are structurally designed to meet the IP-44

requirements.

However, this does not apply to 1) rotating and sliding areas (oil seal areas), 2) cable disconnection areas, 3) option connectors, and 4) option sensor areas.

◆ Locate the driver indoors or within an enclosure. Do not expose it to the sunlight.

◆ Altitude: lower than 1,000 m above sea level

The protection class against contact and entry of foreign matter is as follows: 4: Protected against solid bodies of superior dimensions to 1mm.

The protection class against water entry is as follows: 4: Protected against water splashed from all directions.


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Installation The FHA-C series actuator drives mechanical load system at high accuracy. When installing the actuator, pay attention to precision and do not tap the actuator output part with a hammer, etc. The actuator houses an encoder. Excessive impact may damage the encoder. Installation procedure 1 Align the axis of rotation of the actuator and the

load mechanism precisely. Note 1: Perform this alignment carefully, especially when

a rigid coupling is used. Even slight misalignment may cause the permissible load of the actuator to be exceeded, resulting in damage to the output shaft.

2 Use flat washers and high-tension bolts to fasten the actuator flange to the load machine. Tighten them with a torque wrench to control the tightening torque.

Tightening torques are shown in the table below.

Model Item

FHA-17C FHA-25C FHA-32C FHA-40C Output shaft Flange

Output shaft Flange

Output shaft Flange

Output shaft Flange

Tightening

torque

Screw, hole depth

6-M5 Depth 8

6-M5 8-M6 Depth

10

8-M6 16-M6 Depth

10

12-M6 8-M10 Depth

15

8-M10

N･m 5 3 12 7 12 7 45 25 kgf･cm 50 30 120 70 120 70 450 250

3 For details on wiring, refer to the manual of your HA-800 driver. 4 Wire the motor cable and encoder cable.

Do not pull the cables with a strong force. The connection points may be damaged. Install the cable with slack not to apply tension to the actuator. Provide a sufficient bending radius (R = 40 mm or more), especially when the cable flexes.

Do not apply torque, load or thrust to the sleeve directly. The sleeve (hollow shaft) is adhered to the output rotary shaft. Accordingly, the

adhered sleeve may be detached from the output rotary shaft if a torque or load is applied to the sleeve (hollow shaft). Do not apply any torque, moment load or thrust load directly to the sleeve (hollow shaft).

Do not disassemble/reassemble the actuator. The actuator uses many precision parts. Drops in accuracy and performance

due to disassembly and assembly by the customer are not covered by the warranty.

Output shaft

Flange

CAUTION

Sleeve

Output shaft

CAUTION

Chapter 4

Options

This chapter explains the options available for the SHA series actuator.

4-1 Motor shaft holding brake (option code: B) ·············································· 4-14-2 With connector (option code: C) ··············································· 4-34-3 Cable length: 5m (option code: F5) ················································ 4-44-4 Cable taken out from rear face (option code: K) ·············································· 4-54-5 Revolution sensor (origin & end limit) (option code: L) ··············································· 4-64-6 Extension cables ·································································· 4-9

4-1 Motor shaft holding brake (option code: B)

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Options

4-1 Motor shaft holding brake (option code: B) FHA-C series actuators can be equipped with motor shaft holding brakes. FHA-C series brakes incorporate two coils: one for absorption and one for holding. The actuator's built-in circuit controls the voltage and reduces the power consumption during retention. Be sure to use a DC power supply having proper brake excitation voltage and capable of outputting enough current consumption during suction.

Motor shaft holding brake specification (for incremental encoder)

Model

Item FHA-17C FHA-25C FHA-32C FHA-40C

50 100 160 50 100 160 50 100 160 50 100 160

Type Dry non-excitation actuation type (Power-saving control via absorption and retention coils) Brake excitation

voltage V DC24V±10% (no polarity) Note1

Current consumption

during suction （at 20℃） Note 2

A 1.0 1.1 1.2 1.3

Current consumption

during holding （at 20℃）

A 0.15 0.15 0.2 0.25

Holding torque Note 3

N·m 24 49 78 49 98 157 75 150 240 108 216 345 kgf·m 2.5 5 8 5 10 16 7.7 15 24 11 22 35

Inertia moment Note 3

(Actuator total) (incremental encoder

model)

(GD2/4) kg·m2 0.24 0.96 2.5 1.0 4.1 10.6 2.1 8.4 22 5.5 22 57

(J) kgf·cm·s2 2.4 9.8 25 10 42 110 21 86 220 56 230 580

Mass Note 4 kg 2.9 4.8 7.4 14 Allowable number of normal brakings

Note 5 100,000 times

Allowable number of emergency

stops Note 6 200 times

Note 1: Power supply is user’s responsibility. Use a power supply capable of outputting enough current consumption during suction for the brake.

Note 2: The duration for current consumption during suction is 0.5 second or less for the power supply of DC24V ± 10%.

Note 3: The values are converted for the output shaft. Note 4: The values present total mass of the actuator. Note 5: The service time for normal holding is assured when the brake activates at motor speed of 150 r/min or

less. Note 6: The service time for emergency stop is assured when the brake activates at motor speed of 3,000 r/min or

less. Do not use the holding brake more than the allowable number of normal

brakings (100,000 times at the motor shaft rotation speed of 150 r/min or less) or allowable number of emergency stops (200 times at the motor shaft rotation speed of 3,000 r/min).

Exceeding the allowable number of normal brakings and allowable number of emergency stops may deteriorate holding torque, and may consequently become out of use as a brake.

WARNING

4-1 Motor shaft holding brake (option code: B)

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Options

Motor shaft holding brake cable specifications The brake cable and motor cable are combined into a single cable. Wire colors are shown in the table below.

Color Cable Red Motor phase-U

White Motor phase-V Black Motor phase-W

Green/Yellow PE Blue Brake

(no polarity) Yellow (Shield） FG

4-2 With connector (option code: C)

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Options

4-2 With connector (option code: C) Connectors are attached to the ends of actuator cables. Use an extension cable to allow for convenient connections with HA-800 drivers. Connectors are also effective as countermeasures against static electricity, for improved reliability during assembly. ● Connector models for motors: Molex Japan Co., Ltd.

Receptacle: 5557-08R, female terminal: 5556PBTL ● Connector models for encoders: Binder

For incremental encoders: 99-2009-02-04

Recommended connector models on extension side (receiving side) ● Connector models for motors: Molex Japan Co., Ltd.

Plug: 5559-08P, male terminal: 5558 ● Connector models for encoders: Binder

For incremental encoders: 99-2010-02-04

4-3 Cable length: 5m (option code: F5)

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Options

4-3 Cable length: 5m (option code: F5) Actuator cables (motor and encoder wires) can be extended to a length of 5 m. Use this option when connections cannot be extended.

Motor cable 0.3mm2X2 sets with shield L=5000

0.5mm2X6-cores with shield

Encoder cable

4-4 Cable taken out from rear face (option code: K)

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Options

4-4 Cable taken out from rear face (option code: K) The cables (motor and encoder wires) are taken out from the rear of the actuator. Use this option if the actuator is housed in a system and there is not enough space in the radial direction of the housing.

4-5 Revolution sensor (origin & end limit) (option code: L)

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Options

4-5 Revolution sensor (origin & end limit) (option code: L) Revolution sensors are directly connected to the output shaft on the counter-output side of the actuator. Use this option if the mechanical origin is needed or you want to define an operation range as a safety measure.

Revolution sensor specifications

Origin sensor Model: EE-SX672 [OMRON Corporation] Sensor connection diagram

Time chart

ON when light enters (short circuit between + and L )

ON when light is blocked

Light enters

Light blocked

Light enters

Light blocked

Light entry indicator

Lit Not lit

Light entry indicator

Lit Not lit

Output Transistor

ON OFF

Output Transistor

ON OFF

Limit switch (limit 1, 2)

Model: D2JW-01K21 [OMRON Corporation] ･Switch contact type

Indicator Ｌ

Main circuit

+

-

OUT

Operating status: ON when light is blocked/ON when light enters (switchable) Normally turns ON when light is blocked, but short circuiting the (L) terminal and (+) terminal switches the system to turn ON when light enters.

Input voltage: DC5 to 24V ± 10%, ripple (p-p) 10% or less Current consumption: 35 mA or less Control output: DC5 to 24V, load current (Ic) 100 mA、residual

voltage (Vce) 0.8V or less For TTL drive, load current (Ic) 40 mA, residual voltage (Vce) 0.4V or less

Electricity rating: DC30V 100 mA resistance load Allowable operations Frequency: 240/min (mechanical), 60/min (electric) Life: 1,000,000 or more (mechanical), 100,000 or more (electric) * For details, refer to OMRON Corporation catalogs.

COM NO NC

4-5 Revolution sensor (origin & end limit) (option code: L)

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Options

Sensor adjustment method The method for adjusting sensors is shown below: (1) Loosen the fixing screws from the origin slit board and limit 1/2 dogs. (Until the dogs can be turned

easily by hand.) (2) Adjust the position of the limit 2 dog, set the clockwise (CW) limit position, then fasten the fixing

screw. (3) Adjust the position of the limit 1 dog, set the counter-clockwise (CCW) limit position, then fasten the

fixing screw. (4) To set the position of the origin slit board, rotate the actuator at a slow speed, pass current through

the origin sensor, and confirm its ON/OFF signal to fix it in the appropriate position. Caution 1: The unit is supplied with the origin slit board and limit 1/2 dog fixing screws temporarily

fastened. Aft

sha series manual...ha-800 supports open field networks, making system configuration simple. fha-c...

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