Evolving Servo System with High Speed,
High Precision and Energy Eﬃciency<@+-D series SERVO

Evolving Servo System with High Speed,
High Precision and Energy Eﬃciency< @+-D series SERVO• Servo motor : Increased smoothness• Spindle motor : More power and torque

Mach ining
perfor mance

Energy conservation• Control : Higher precision and quality• Highly eﬃcient motors• Highly eﬃcient current control• Power regeneration as standard• Ampliﬁers with low-loss power devices

CNC< SERVO AM PLIFIER @+-D series• Low-loss AC reactor

0i -F Plus, 30i -B Plus,
Power Motion i -A Plus

αi -B series

αi -D seriesCompared to αi -B series（Under continuous rated output）< SERVO MOTOR@+-D series< SPINDLE MOTOR@+-D series• Improved durability• Downsized and reduced

against cutting ﬂuid

wiring• Trouble prediction• Quick maintenanceMaximizing
uptime2

About 10%
reduction

Loss %FSSB（FANUC Serial Servo Bus）

FANUC Series 500i -A

100%

LINEAR MOTOR

DD MOTORBUILT-IN SPINDLE MOTOR• Easy setting and tuning• Convenient sizing

Ease of use

3Servo motor

Spindle motor

Applicable to feed axes of various machines

Applicable to various machining

・A wide line-up range for feed axes of various machines

・A wide variety and range of line-up meets various machining needs ofmachine tools.

@+S-D ! ・・・ Achieve high-speed and high-@+I-D ! ・・・ Achieve excellent machining performance withacceleration@+F-D ! ・・・ Achieve exceptional smoothness

high-speed and high-power@+IP-D ! ・・・ Realize high-torque with smaller ampliﬁer@+IT-D ! ・・・ Enable center-through coolant by hollow shaft@+IL-D ! ・・・ Attain low temperature rise and high-torque・Newly added 200 sq. ﬂange size model increases the servo
motor choices available for large machines.
・Productivity is improved by raising maximum speed of live tool
motors（40, 60, 90 sq.）to 8000min-1.

with liquid-cooling@+S-D ! ・・・ Create high-power and high-accelerationby using neodymium magnets
・Models for lathe, suitable for belt drive with higher allowable radial load,
are also available.

Achievement of high-speed, high-accuracy, and high-quality machining
High-accuracy, high-quality machining
・αi-D servo motors have been improved toachieve higher accuracy, lower cogging
torque, and faster communication speedwith the Pulsecoder. Higher response andmachining quality are achieved with the
combination of αi-D servo ampliﬁers andiEx.) α F4 (130 sq.) feed accuracy

servo HRV control.

Higher machining performance

0.4μm・Enhanced maximum output characteristics contribute to quicker acceleration up to high-speed range and shorter cycle
time.
・Superior continuous output characteristics contribute to high-eﬃciency machining.
・Increased maximum speed contributes to wider application range of machining.
・Vibration class of V3 as standard contributes to high-accuracy machining.

0.1μm@+-B !

@+-D !

[Conditions] Feed rate 6min -1, Lead 10mm/rev conversion

High-speed machining（Reduction of cycle time）
・Enhanced maximum torque characteristics contribute toquicker acceleration and shorter cycle time.
・Increased maximum speed contributes to positioning operations
at high feed rates and shortens cycle time.

iEx.) α S8 (130 sq.) torque characteristic
40

Nm

kW
25

S3 15%
15

S3 25%

10

S2 30min, S3 60%@+S 8/4000-B
5

20

0

10

0

αiI 12/10000-D20

S3 15%
15

30

kW
25

20

Acceleration time about ‑10%@+S 8/4000-D

αiI 8/8000-B

Acceleration timeabout ‑15%

S1
min -1
0

2000

4000

6000

10

S1
5

0

8000

S2 15min, S3 25%

min -1
0

2000

4000

6000

8000

10000

min -1
0

1000

2000

3000

4000

Visualization of spindle motor information
・Information such as Motor ID is available on CNC screen and contributes to improvement of motor traceability.

Battery replacement unnecessary
Battery-less Pulsecoder

Motor ID data
displayed on
maintenancescreen・Battery-less Pulsecoder can be selected for all servo motors.
・Battery change in all axes including peripheral axes is not required.

Sensorsignal line
（Serial I/F）

ID information
in a spindle sensor

Battery-less Pulsecoder
45Servo Ampliﬁer
Flexible combination for various machine conﬁgurations

Expanded line-up of multiple-axis ampliﬁers

Separated-type ampliﬁers

・The use of suitable multiple-axis ampliﬁers realizes downsizing of a control cabinet, and simpliﬁed wiring with a reduced
number of ampliﬁer units.

・The best suited arrangement according to various machine layouts is possible withthe combination of servo ampliﬁers, spindle ampliﬁers and common power supplies.

αi PS
30-B

@+SV-D series : Servo ampliﬁer , which drives servo motors@+SP-D series : Spindle ampliﬁer , which drives spindle motors@+SVP-D series : Multi-axis ampliﬁer which has servo axes and spindle axes@+PS-D series : Common power supply , which supplies main power for driving
motorsαi SP αi SVii

α SV α SV
26-B 80/160-B 80/80-B 40/80-B

Number of
ampliﬁer units: 2

Number ofcables between
ampliﬁers: 8

Number ofcables between
ampliﬁers: 2

150

150

90

‑180mm

60 60

240

510mm

330mm

Brake control circuit in ampliﬁers
・The circuit to control holding brakes of servo motors isbuilt into servo ampliﬁers.
・It is not necessary to prepare brake control circuits
separately and also wiring for control signals via I/Ounits.
・This feature contributes to downsizing, simple wiringand cost-saving of a control cabinet.

AC Reactor
・The design has been renewed by adopting a unique new hexagonal structure, which
reduces losses and contributes toenergy conservation.
・The thermostat provides overheat
protection for the AC reactor.

External circuit
is not necessary.

Safe Torque Oﬀ（STO）function
・Motor power can be cut oﬀ safely by the duplicatedcut-oﬀ circuit in ampliﬁers, conforming IEC 61800-5-2.
・It is not necessary to prepare magnetic contactors to
cut oﬀ motor power.
・This feature contributes to downsizing, simple wiringand cost-saving of a control cabinet

Hexagonal structure

Downsizing of a control cabinet

Magnetic contactors
are not necessary.

Smaller ampliﬁers
・The width of ampliﬁers are reduced by up to 30% compared with previous models.

i

Saving energy with power regeneration method

αi PS30-B

αi PS30-D

β SVSP
80/80/80-18-B

α PSVSP
80/80/80-18-D

αi SP100HV-B

αi SP100HV-D

150

120

260

180

300

240

‑30mm
6

i

‑80mm

90

Reduction of devices in a control cabinet@+PSVSP-D series : Common power supply, Servo ampliﬁer and Spindle
ampliﬁer integrated ampliﬁer@+PSV-D series : Common power supply and Servo ampliﬁer integrated ampliﬁer

Current structurei

Number of
ampliﬁer units: 5

Integrated-type ampliﬁers
・The integrated-type ampliﬁers achieve downsizing and simple wiring by integrating
servo axes, spindle axis and power supply.
・Additional separated-type ampliﬁers can be installed with @+PSVSP-D easily byconnecting directly with DC-link short bars.

iα PSVSP
α SV
80/80/160-26-D 80/80/80-D

Integrated-type
26kW model‑60mm

・Ampliﬁers (excepting for @+PSV-D) save energy by returning regenerative energy during deceleration to powersource without heat dissipation loss, which is also applied in conventional models.

Power source

MotorsAmpliﬁers

Reuse by returning to power source

Machine tools

Energy returned during machine deceleration
7Servo Control
Servo control to achieve high-speed and high-accuracy

Servo Learning Control / Servo Learning Oscillation

SERVO HRV+ Control（High Response Vector）

・Servo Learning Control enables high-speed, high-accuracy machining of workpieces that require repeatable cuttingcommands, such as aspherical workpieces, gears, and so on.
・Servo Learning Oscillation accurately follows high frequency oscillation commands, thereby ensuring reliable chip
shredding during turning and drilling.

・In αi -D series SERVO, rotational smoothness of SERVO
MOTOR, current resolution of SERVO AMPLIFIER, andcommunication speed of PULSECODER are improved.
High-speed and high-accuracy machining at nanometerlevel can be achieved thanks to higher servo gain by boththe latest SERVO HRV+ control and hardwareenhancement. The automatic-following HRV ﬁlter can
suppress mechanical resonance even when its frequencychanges.
・Higher cycle of position and velocity control can be usedin FS500i -A. It will improve the smoothness of axis movement.

R10mm
F4m/min

R10mm
F4m/min

Aspheric lens
2μm/div

αi-B series servo

Spindle：4500min -1
Swing axis：150Hz

αi-D series servo

Tool moves
with oscillation

3000min-1

Error 2μm or less

Optimum decelerationaccording to inertia

Combinations with a DD or liner motor are particularly eﬀective
for achieving high-accuracy machining.

Z axisdirection
Oscillation
Shredded chips

Servo Tuning Tool FANUC SERVO GUIDE Plus
Integrated tuning tool for Servo and Spindle

Spindle speed
1180msNormal path

Example of piston
machining

Ellipse long andshort diameter
diﬀerence：0.4mm

SPINDLE HRV Control（High Response Vector）

8

Piston（Non-cylindrical）

2μm/div

Spindle control to achieve high-response and high-eﬃciency
・High-speed current control achieves the high-gain
control and the low heat generation of motors at
high-speed rotation which leads to energy
conservation.
・Optimum Orientation function enables the optimum
deceleration according to the inertia of workpieces ortools, and cycle time can be reduced.
・Nano Interpolation in position control enables Nano
CNC system for spindle axis as well as feed axis.

Servo Learning Oscillation

Example of the application of Servo Learning Control

0min-1

540ms

Small inertia
Optimum Orientation（example）

Large inertia

Smart Servo Control

SERVO GUIDE Plus helps to improve machining performance through the various waveform analysis and the optimizationof servo/spindle parameters according to machine characteristics.
・All in one package for servo tuning including data measurement, parameter management and test program preparation
・Various views of waveform helps easy analysis of machine condition
・AI Servo Tuning is an auto-tuning algorism with artiﬁcial intelligence. It can optimize parameters easily and in a shorttime.
・3-D View Function（option）visualizes the tool path and path error and helps trouble shooting of 5-axis machining

Optimizing control in real time
Smart Servo Control is a group of functions to optimize control in real time according to the change of machineconditions such as load, temperature and position. High-speed, high-accuracy and high-quality machining can beachieved by using these functions.

CNC< SERVO GUIDE Plus

Machine tools

Gain/Filter
Feedforward
AICC Acc/Dec

Various waveform view

8

AI Servo Tuning

Tool path by 3-D View Function

9

Maximizing Uptime
Reliable

Improving of reliability for cutting ﬂuid

Fan motor stop detection function for Spindle motor
Detection of a stopped spindle motor fan is realized
by the addition of thermostat to the fan motor.
Preventive maintenance is possible before
overheating of spindle motor since a fan motor
WARNING will be displayed on the CNC.

Servo motor IP67 as standard
Adopting new IP67 connector, sealing parts and an improved sealing
structure has achieved higher cutting ﬂuid resilience than former
models.

αi-D series servo motors are IP67 as standard (200 sq. or less).

Fan stopped
Fan condition

Spindle motor
The risk of penetration of cutting ﬂuid from shaft-through portion is
reduced by improved seal structure of labyrinth for high-speed models.
The environmental durability for high-speed models is enhanced.

Easy to repair

Molded Fan Motor

Fan motors can be replaced from the front of ampliﬁers without detaching ampliﬁers from a cabinet and disconnecting
wiring.
Fan motor replacement time is greatly reduced.

Molded fan motors have been adopted, in which the coils and printed
circuit board are molded with resin.
Molded fan motor has high durability against coolant and prevents thefailure of fan motor by itself.

Predictable

Quick Replacement of Fan motor

Replace fan motors
after detaching
short-bars

Replace fan
motors without
detachingshort-bars

Trouble Prediction Function

Unexpected machine stop is prevented, and preventive maintenance becomes available, by detecting anomaly signs of
the motor, ampliﬁer, and fan motor.

Leakage Detection Function
Leakage detection function measures the insulation
resistance of the motor and detects insulation
deterioration.
All α -D servo ampliﬁers, including Integrated-typei

ampliﬁers have this leakage detection function.

Drop of Fan motor speed
・Insulation
resistance・Fan motor
speed・Capacitance

Insulation
deterioration

Capacitor Check Function
Capacitor check function measures the capacitancefor main circuit in servo ampliﬁer and detects drop of
capacitance.

Detach short-bars
ﬁrst

Easy to repair

αi-B Ampliﬁer

αi-D Ampliﬁer

One-touch connector

One-touch power connector usage is added for small
servo motors.
Both of power and signal connector can be attachedand detached with a single touch.
One-touch connectors contribute to reducing
maintenance time.

Drop of capacitance

Fan motor speed detection function
Fan motor speed detection function measures the
speed of the fan motor in servo ampliﬁer and detects
drop of fan motor speed.

Brake condition

Brake check function
The brake check function measures the brakecondition and detects a failure of the brake.

1011

Service & Support
Excellent Maintenance Services

FANUC service team delivers customer trust and conﬁdence
based on direction of service Maximizing Uptime",
Global Service" and Lifetime maintenance".

Conforming to the spirit of Service First , FANUC provides lifetime maintenance to its products
for as long as they are used by customers, through more than 260 service locations supporting
more than 100 countries and regions throughout the world.

Maximizing Uptime

GlobalService

Lifetime
Maintenance

FANUC ACADEMYFANUC ACADEMY operates versatile training courses to develop skilled engineers eﬀectively in several days.

●● Overseas Aﬃliated Companies

FANUC America Corporation
FANUC Europe Corporation, S.A.
BEIJING-FANUC Mechatronics CO., LTD
KOREA FANUC CORPORATIONTAIWAN FANUC CORPORATIONFANUC INDIA PRIVATE LIMITED

Headquarters 3580, Shibokusa, Oshino-mura,
Minamitsuru-gun Yamanashi, 401-0597, JAPAN
Phone: (+81)555-84-5555 https://www.fanuc.co.jp/

Phone: (+1)248-377-7000
Phone: (+352)727777-1
Phone: (+86)10-6298-4726
Phone: (+82)55-278-1200
Phone: (+886)4-2359-0522
Phone: (+91)80-2852-0057• All speciﬁcations are subject to change without notice.
• No part of this catalog may be reproduced in any form.
• The products in this catalog are controlled based on Japan's Foreign Exchange and Foreign Trade Law". The
export from Japan may be subject to an export license by the government of Japan. Further, re-export toanother country may be subject to the license of the government of the country from where the product is
re-exported. Furthermore, the product may also be controlled by re-export regulations of the United States
government. Should you wish to export or re-export these products, please contact FANUC for advice.

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2021
Servo αi-D(E)-01, 2023.4, Printed in Japan