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New models to suit an even wider range ofperformance requirements
Megatorque Motor®
Direct Drive Motor YS SeriesConformity with CE Marking Directives
StandardInventoryAvailable
All green-shaded units and cables are supplied by NSK.
Handy Terminal M-FHT11 (or PC)
Thermal sensor output
ESA Driver Unit24V DC
• 3-phase 200V/220V AC• Single-phase 200V/220V AC or• Single-phase 100V/110V AC
Sequencer or numerical controller
RS-232C
Isolation transformerCircuit breakerMain power supply cut-off circuit
Cable set
Megatorque Motor
21
Megatorque Motor®
The YS Series
The NSK Megatorque Motor is a direct drive motor
which achieves highly precise positioning with very
high torque at low speed.
The YS Series combines the performance and
reliability of the existing Megatorque Motor range
with the advantages of compact size and simple
design for low cost. In addition to five standard
motors that cover a wide range of performance
requirements while assuring low cost and short
delivery times, NSK now offers special order motors
featuring a low profile, knock-pin holes or a brake.
All Megatorque Motors in the YS Series conform to
European safety requirements and bear the CE
Marking. A new analog command function had been
added to the dedicated ESA25 Driver Unit.
The Megatorque Motor is suitable for a wide range
of industrial applications, including use as a rotary
actuator for robots, transfer systems, chamfering
machines and printing machines or as a rotary
indexer for assembly machines, welding systems,
measuring instruments and machining centers.
The YS Series system combines NSK’s technical
excellence and reliability with outstanding
performance and features including:
• simple motor structure and dedicated compact
driver units for low cost
• standard stock for short delivery times
• interchangeability of motors, Driver Units and
cable sets (lengths 2–30m)
• high resolution, full closed-loop control and zero
backlash for high precision
• high load-capacity bearings
• max. torque 240 N•m
• max. speed 3 rps
• repeatability of ±2.1 sec
• hollow-core structure allowing wires and pipes to
run inside the motor
• an auto-tuning function to eliminate the time-
consuming task of gain adjustment
• conformity with CE Marking requirements
The NSK Megatorque Motor System
System Components
The typical Megatorque Motor system consists of a motor, a
driver unit, a Handy Terminal (or PC) and cables. You will also
need AC and DC power supplies, a sequencer (PLC) or
numerical controller, isolation transformer, circuit breaker, main
power supply cut-off circuit, and noise filters.
● The NSK Megatorque Motor SystemSystem Components ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 2How to Use This Guide ––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 2
● Megatorque MotorsStandard Type Motors & Motors with Knock-Pin Holes
Principal Specifications –––––––––––––––––––––– 3Dimensions –––––––––––––––––––––––––––––––––––––– 4–8
Motors with a Brake Principal Specifications –––––––––––––––––––––– 9Dimensions –––––––––––––––––––––––––––––––––– 10–11
Low-profile Motors Principal Specifications –––––––––––––––––––– 12Dimensions –––––––––––––––––––––––––––––––––––––––– 13
● ESA Driver Units Principal Specifications –––––––––––––––––––– 14Dimensions–––––––––––––––––––––––––––––––––––––––––––14
ESA23 Driver Units Input and Output Signals for CN2 ––––15Pin Arrangement andSystem Wiring Diagram –––––––––––––––––––––15
ESA25 Driver Unit Input and Output Signals for CN2 ––––16Input and Output Signals for CN5 ––––16Pin Arrangements ––––––––––––––––––––––––––––––16System Wiring Diagrams –––––––––––––––––––17
● AccessoriesMotor and Driver Unit Cable Set ––––––––––––––––––––––––––––––––––––––––– 18Handy Terminal –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 18Brake Power Supply –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 19
● Recommend Sequence Diagram ––––––––––––––––––––––––––––––––––––––––––––––– 19● Choosing a Motor
Speed-torque Characteristics –––––––––––––––––––––––––––––––––––––––––––––––––––– 20Accuracy Standards –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 20Maximum Speed-load Characteristics ––––––––––––––––––––––––––––––––––––– 21How to Calculate Axial and Moment Loads ––––––––––––––––––––––––––– 21How to Determine Minimum Positioning Time ––––––––––––––– 22–23
● CE MarkingOutline–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 24
● Example Wiring Diagram ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 24● Determining Your Requirements
Order Numbers –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––25–26Order Form –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––26
Index
How to Use This Guide
Use this guide to select the motors, driver units
and accessories you need for your application.
Pages 3–23 describe the principal
specifications and characteristics of each
component in the motor system. On page 24
you will find notes on the CE Marking and
precautions for using products bearing the CE
Marking. Finally, pages 25–26 list all of the
product numbers you will need to order a
complete system.
If you have any questions, or would like more
detailed information about any aspect of the
Megatorque Motors’ YS Series, please contact
your NSK representative at one of our
worldwide offices listed on the back cover.
Use the form on page 25 to order the right system for
your application.
Schema of a Typical Megatorque Motor System
43
Megatorque Motor®
Standard type motors M-YS2020GN001 M-YS3040GN501 M-YS4080GN001 M-YS5120GN001 M-YS5240GN001Motors with knock-pin holes M-YS2020GN011 M-YS3040GN511 M-YS4080GN011 M-YS5120GN011 M-YS5240GN011Maximum torque(2) (N•m) 20 40 80 120 240
Maximum stall torque (N•m) 15 35 70 105 198
Maximum current/phase (A) 6
Allowable axial load(3) (N) 3700 4500 9500 19600 19600
Allowable moment load(3) (N•m) 60 80 160 400 400
Axial rigidity(1) (mm/N) 4.0×10-6 3.0×10-6 1.4×10-6 1.0×10-6 1.0×10-6
Moment rigidity(1) (rad/N•m) 3.5×10-6 2.5×10-6 1.5×10-6 3.0×10-7 3.0×10-7
Rotor moment of inertia (kg•m2) 0.007 0.020 0.065 0.212 0.255
Rotor inertia GD2 (kgf•m2) 0.028 0.080 0.260 0.850 1.020
Mass(kg) 10 16 29 55 95
Operating conditions Temperature: 0–40°C, Humidity: 20–80% Use indoors, free from dust, condensation and corrosive gases
Maximum speed [s-1(rps)] 3
Resolver resolution (p/rev) 614400
Resolver accuracy (sec) 150
Resolver repeatability (sec) ±2.1
Compatible driver units(4) M-ESA-Y2020T23 M-ESA-Y3040T23 M-ESA-Y4080T23 M-ESA-Y5120T23 M-ESA-Y5240T23
M-ESA-Y2020V23 M-ESA-Y3040V23 M-ESA-Y4080V23 M-ESA-Y5120V23
M-ESA-Y2020T25 M-ESA-Y3040T25 M-ESA-Y4080T25 M-ESA-Y5120T25 M-ESA-Y5240T25
M-ESA-Y2020V25 M-ESA-Y3040V25 M-ESA-Y4080V25 M-ESA-Y5120V25
Standard Type Motors & Motors with Knock-pin Holes
Principal SpecificationsFive standard type motors and five motors with knock-pin holes in the YS Series
Motor Dimensions
M-YS2020GN001 (standard type motor)
M-YS3040GN501 (standard type motor)
Notes:SI unit system: 1N = 0.225 lb; 1N•m = 0.738 ft•lb(1) These values assume that the motors is mounted on a rigid base.(2) For speed-torque characteristics, see page 20.(3) For details of how to calculate axial and moment loads, see page 21.(4) For the compatible Driver Units, see pages 14–17.
Megatorque Motors’ YS Series can be run on either 100/110V or 200/220V AC except M-YS5240GN∗∗∗.M-YS5240∗∗∗is available only in 200/220V AC version.For order numbers of compatible Driver Units, cables and other accessories, see pages 25–26.
(5) Please consult NSK if the application requires more than 2(s-1) continuous revolutional speed in the same direction.
The NSK Megatorque Motor is a direct drive motor which
eliminates all gears and other transmission mechanisms to
achieve very high torque at low speeds. The YS Series offers
five standard type motors, assuring low cost and short delivery
times. Motors with knock-pin holes, motors with a brake and
low-profile motors are also available.
The figures on pages 4–8 show the external dimensions of the
five standard motors in the YS Series and the five motors with
knock-pin holes. Please check that the motors you plan to
order will fit your workspace specifications.
If your requirements differ from the standard specifications, please contact NSK.
The Megatorque Motors’ YS Series features:
• high torque at low speed—up to 240 N•m
• repeatability of ±2.1 sec
• brushless structure and permanently lubricated heavy duty
bearings for maintenance-free operation
• high axial and moment rigidity
• hollow-core structure allowing wires or pipes to run inside
the motor
The YS Series offers five standard motors.
Max
. 115
Output rotor mounting holes6-M5×0.8×7PCD120 (60° equal pitch)
✽(145)
130±0.2
105±0.4
✽(1
45)
130±
0.2
Base mounting holes 4- 7 drill-thru
Connector JST Corp. ELR-15V Unit: mm✽(60)
(30
)30
h8 0 -0
.063
✽(28)
(43)
✽(3)
(6)(5.8)
✽(28)
✽(R
22)
✽(R
26)
✽(R
12)
✽(
82)
27✽(
170)
(39)✽(44)
✽(57)
φ
φ φ
110 +
0.1
0
φφ φ φ(
164
.5)
Unit: mm
(48)
Output rotor mounting holes6-M6×1.0×8PCD145 (60° equal pitch)
✽(180)
160±0.2
Base mounting holes 4- 10 drill-thru
Connector JST Corp. ELR-15V
✽(1
80)
160±
0.2
✽(80)
Max
. 135
(44
)15
5h8
( 2
06.5
) 0 -0.0
63
125±0.4
(3)✽
(4)
(11)
(13)
✽(41)44
✽(58)
✽(70)
✽(R
31)
✽(R
40)
✽(R
56)
✽(R
82.5
)
70
(90
)
✽(R
105)
✽ (R90
)
φ
φ φφ
φ
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
65
Motor Dimensions
Megatorque Motor®
Output rotor mounting holes6-M6×1.0×8
PCD190 (60° equal pitch)
Base mounting holes 4- 12 drill-thru
Connector JST Corp. ELR-15V
✽(235)
210±0.2
✽(2
35)
280±
0.2
✽(60)
Max
. 170
(50
)
175
205h
8(
270.
4) 0 -0.0
72
125±0.4
(6)
(5.8)(3.2)
✽(37)✽(32)
43
✽(51)✽(71)
✽(R
35)
✽(R
44.5
)
✽(R
56)
✽(
152
)✽
(28
0)
✽(R
15)
40
Unit: mm
φ
φ φφ φ φ
✽(30)
(47)
φ
Unit: mm
✽(3
10)
280±
0.2
✽(60)
Max
. 215
(85
)
280h
8(
360)
0 -0.0
81
194±0.4
(6)
(3)
✽(28)
✽(23)
48
✽(109)
✽(137)
✽(R
61)
✽(R
73)
✽(
210)
✽(
370)
✽(310)
280±0.2
Output rotor mounting holes6-M8×1.25×10PCD260 (60° equal pitch)
Base mounting holes 4- 14 drill-thru
Connector JST Corp. ELR-15V
✽(R
15)
74
φ
φφ
240
φφ
✽(
175)
φ φ φ
(52)
+0.
1 0
Unit: mm
Output rotor mounting holes6-M5×0.8×7
PCD120 (60° equal pitch)
✽(1
45)
130±
0.2
120±0.02
✽(60)
✽(145)130±0.2
22.5°
2- 6H7( )×7
0.080 A
A
+0.012 0
Base mounting holes 4- 7 drill-thru
Connector JST Corp. ELR-15V
Max
. 115
(30
)
130h
8(
164.
5) 0 -0.0
63
110
+0.
1 0
105±0.4
(6)
(5.8)39
✽(44)
✽(28)
✽(3)
✽(28)
✽(57)
✽(R
22)
✽(R
26)
✽(R
12)
27
✽(
82)
✽(
170)
(43)
2- 6H7( )×5
0.150 A +0.012 0
45°
150±0.02
φφ
φ
φ φ φφ φ φ
φφ
✽(R
15)
✽(310)
280±0.2
✽(3
10)
280±
0.2
✽(60)
Max
. 215
74
(85
)28
0h8
( 3
60) 0 -0
.081
130±0.4
(6)
(3)
✽(33)
✽(28)
✽(45)
48✽(75)
✽(R
66)
✽(R
75.5
)
✽(
175)
✽(
210)
✽(
370)
Output rotor mounting holes 6-M8×1.25×10
PCD260 (60° equal pitch)
Base mounting holes 4- 14 drill-thru
Connector JST Corp. ELR-15V Unit: mm
φ
φφ
φ φ φ φ
(52)
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
M-YS5120GN001 (standard type motor)
M-YS4080GN001 (standard type motor)
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
M-YS5240GN001 (standard type motor)
M-YS2020GN011 (with knock-pin holes)
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
87
Motor Dimensions
M-YS3040GN511 (with knock-pin holes)
M-YS4080GN011 (with knock-pin holes)
M-YS5120GN011 (with knock-pin holes)
M-YS5240GN011 (with knock-pin holes)
Megatorque Motor®
φ
✽(1
80)
160±
0.2
145±0.02
✽(80)
✽(180)160±0.2
22.5°
2- 6H7( )×8
0.080 A
A
+0.012 0
Output rotor mounting holes6-M6×1.0×8
PCD145 (60° equal pitch)
Base mounting holes 4- 10 drill-thru
Connector JST Corp. ELR-15V
Max
. 135
(44
)
155h
8(
206.
5) 0 -0.0
63
135
+0.
1 0
125±0.4
(11.1)
(4)44
✽(58)
✽(41)✽(3)
✽(70)
✽(R
31)
✽(R
40)
✽(R
56)
✽(R
82.5
)✽
(R10
5)
(48)
2- 6H7( )×5
0.150 A +0.012 0
70
90
45°190±0.02
Unit: mm
φ
φ
φ
φ φ φφ
✽(R
90)
φ
φ
Unit: mm
Output rotor mounting holes6-M8×1.25×10PCD260 (60° equal pitch)
✽(3
10)
280±
0.2
260±0.02
✽(60)
✽(310)280±0.2
22.5°
2- 10H7( )×10
0.080 A +0.015 0
Base mounting holes 4- 14 drill-thru
Connector JST Corp. ELR-15V
A
Max
. 215
(85
)
280h
8(
360)
0 -0.0
81
240
+0.
1 0
130±0.4
(3)(6) ✽(45)
48
✽(33)
✽(28)
✽(75)
✽(R
66)
✽(R
15)
✽(R
75.5
)
✽(
175)
✽(
210)
✽(
370)
(52)
340±0.2
45°
2- 10H7( )×10
0.150 A +0.015 0
74
φφ
φ
φφ φ
φ φ φ φ
φφ
Unit: mmConnector JST Corp. ELR-15V
Output rotor mounting holes6-M8×1.25×10PCD260 (60° equal pitch)
✽(3
10)
280±
0.2
260±0.02
✽(60)
✽(310)280±0.2
22.5°
2- 10H7( )×10 +0.015 0
0.080 A
Base mounting holes 4- 14 drill-thru
A
Max
. 215
(85
)
280h
8(
360)
0 -0.0
81
240
+0.
1 0
190±0.4
(3)
(6) 48
✽(137)
✽(109)
✽(28)
✽(23)
✽(R
61)
✽(R
73)
✽(
210)
✽(
370)
(52)
✽(R
15)
340±0.2
45°
2- 10H7( )×10
0.150 A +0.015 0
74
φφ
φ
φφ φ
φ
✽(
175)
φ φ φ
φ
φ
Unit: mm
✽(2
35)
210±
0.2
190±0.02
✽(60)
✽(235)210±0.2
22.5°
2- 8H7( )×8
0.080 A +0.015 0
A
Max
. 170
(50
)
250h
8
(27
0.4) 0 -0
.072
175
+0.
1 0
(3.2)
(6)
✽(51)
✽(37)✽(32)
43
✽(71)
✽(R
35)
✽(R
44.5
)
✽(R
56)
✽(
152)
✽(
280)
(47)
125±0.4
2- 8H7( )×8
0.150 A +0.015 0
✽(R
15)
40
45°
250±0.02
✽(30)
Output rotor mounting holes6-M6×1.0×8
PCD190 (60° equal pitch)
Base mounting holes 4- 12 drill-thru
Connector JST Corp. ELR-15V
φ
φ
φ
φ φ φφ φ φ
φφ
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
109
Motor Dimensions
M-YS2020GG001 (with brake)
The figures on pages 10–11 show the external dimensions of
the four motors in the YS Series with an integral brake. Please
check that the motors you plan to order will fit your workspace
specifications.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
Motors with brakes M-YS2020GG001 M-YS3040GG001 M-YS4080GG001 M-YS5120GG001
Maximum torque(2) (N•m) 20 40 80 120
Maximum stall torque (N•m) 15 35 70 105
Maximum current/phase (A) 6
Allowable axial load(3) (N) 3700 4500 9500 19600
Allowable moment load(3) (N•m) 60 80 160 400
Axial rigidity(1) (mm/N) 4.0×10-6 3.0×10-6 1.4×10-6 1.0×10-6
Moment rigidity(1) (rad/N•m) 3.5×10-6 2.5×10-6 1.5×10-6 3.0×10-7
Rotor moment of inertia (kg•m2) 0.008 0.023 0.072 0.240
Rotor inertia GD2 (kgf•m2) 0.032 0.092 0.288 0.960
Brake output torque (N•m) 20 40 80 120
Mass (kg) 12 20 36 66
Operating conditions Temperature: 0–40°C, Humidity: 20–80% Use indoors, free from oil mist, dust, condensation and corrosive gases.
Maximum speed [s-1(rps)] 3
Resolver resolution (p/rev) 614400
Resolver accuracy (sec) 150
Resolver repeatability (sec) ±2.1
Compatible driver units(4) M-ESA-Y2020T25 M-ESA-Y3040T25 M-ESA-Y4080T25 M-ESA-Y5120T25
M-ESA-Y2020V25 M-ESA-Y3040V25 M-ESA-Y4080V25 M-ESA-Y5120V25
Motors with Brakes
Principal SpecificationsFour motors with knock-pin holes in the YS Series
Notes:SI unit system: 1N = 0.225 lb; 1N•m = 0.738 ft•lb(1) These values assume that the motor is mounted on a rigid base.(2) For speed-torque characteristics, see page 20.(3) For details of how to calculate axial and moment loads, see page 21.(4) For the compatible Driver Units, see pages 14–17.
Megatorque Motors’ YS Series can be run on either 200/220V or 100/110V AC.For order numbers of compatible Driver Units, cables and other accessories, see pages 25–26.
(5) Please consult NSK if the application requires more than 2(s-1) continuous revolutional speed in the same direction.
The Megatorque Motors’ YS Series includes four motors with
an integral brake that is actuated by an external power supply.
If your requirements differ from the standard specifications, please contact NSK.
For detail of brake power supply, see page 19.
Megatorque Motor®
Output rotor mounting holes6-M5×0.8×7PCD120 (60° equal pitch)
Base mounting holes 4- 7 drill-thru
Connector JST Corp. ELR-15V
Tap for manual brake release3-M5 PCD106
Unit: mm
✽(1
45)
130±
0.2
✽(60)
✽(145)130±0.2
Max
. 115
110
130h
8(
164.
5) 0 -0.0
63 18+
0.5
0
+0.
1 0
105±0.4
(6)
39
✽(10)
✽(
146) (11
7)
✽(
122)
✽(
170)
(43)
φ
φ φφ
φ
φ φ
φ
φ
Unit: mm
✽(1
80)
160±
0.2
✽(60)
✽(180)160±0.2
Max
. 135
135
155h
8(
206.
5) 0 -0.0
63 20+
0.5
0
+0.
1 0
125±0.4
(4.7)
44
✽(10)
✽(
160)
✽(
210)
(48)
✽(180) (
129)
Output rotor mounting holes6-M6×1.0×8
PCD145 (60° equal pitch)
Base mounting holes 4- 10 drill-thru
Connector JST Corp. ELR-15V
Tap for manual brake release3-M5 PCD112
φ
φ φφ
φ
φ φ
φ
φ
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
M-YS3040GG001 (with brake)
1211
Motor Dimensions
M-YS4080GG001 (with brake)
M-YS5120G001 (with brake)
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
Low-profile MotorsThe Megatorque Motors’ YS Series includes two motors with an
extra-low profile for use in conditions where space is at a premium.
Principal SpecificationsThe two low-profile motors in the YS Series
Low-profile motors M-YS2005GN001 M-YS3008GN001
Maximum torque(2) (N•m) 5 8
Maximum stall torque (N•m) 4 5
Maximum current/phase (A) 1.5
Allowable axial load(3) (N) 3700 4500
Allowable moment load(3) (N•m) 60 80
Axial rigidity(1) (mm/N) 2.8×10-5 2.6×10-5
Moment rigidity(1) (rad/N•m) 1.8×10-5 1.5×10-5
Rotor moment of inertia (kg•m2) 0.003 0.006
Rotor inertia GD2 (kgf•m2) 0.012 0.024
Mass (kg) 4 6
Operating conditions Temperature: 0–40°C, Humidity: 20–80% Use indoors, free from dust, condensation and corrosive gases
Maximum speed [s-1(rps)] 3 2(5)/3(6)
Resolver resolution (p/rev) 614400
Resolver accuracy (sec) 150
Resolver repeatability (sec) ±2.1
Compatible driver units(4) M-ESA-Y2005T23 M-ESA-Y3008T23
M-ESA-Y2005V23 M-ESA-Y3008V23
M-ESA-Y2005T25 M-ESA-Y3008T25
M-ESA-Y2005V25 M-ESA-Y3008V25
Notes:SI unit system: 1N = 0.225 lb; 1N•m = 0.738 ft•lb(1) These values assume that the motor is mounted on a rigid base.(2) For speed-torque characteristics, see page 20.(3) For details of how to calculate axial and moment loads, see page 21.(4) For the compatible Driver Units, see pages 14–17.(5) On 100/110V AC(6) On 200/220V AC
Megatorque Motors’ YS Series can be run on either 200/220V or 100/110V AC.For order numbers of compatible Driver Units, cables and other accessories, see pages 25–26.
(7) Please consult NSK if the application requires more than 2(s-1) continuous revolutional speed in the same direction.
If your requirements differ from the standard specifications, please contact NSK.
Megatorque Motor®
Unit: mm
✽(2
35)
210±
0.2
✽(60)
✽(235)210±0.2
Max
. 170
175
205h
8
(27
0.4) 0 -0
.072 18
+0.
5 0
+0.
1 0
125±0.4
(6)43
✽(10)
✽(
212) (17
0)
✽(
188)
✽(
280)
(47)
Output rotor mounting holes6-M6×1.0×8
PCD190 (60° equal pitch)
Base mounting holes 4- 12 drill-thru
Connector JST Corp. ELR-15V
Tap for manual brake release3-M6 PCD158
φ
φφ
φφ
φ φ
φ
φ
Unit: mm
✽(3
10)
280±
0.2
✽(60)
(✽310)280±0.2
Max
. 215
240
280h
8(
360)
0 -0.0
81
46+
0.5
0
+0.
1 0
130±0.4
(6)
48✽(3)
(18
7)
✽(
210)
✽(
370)
(52)
Output rotor mounting holes6-M8×1.25×10PCD260 (60° equal pitch)
Base mounting holes 4- 14 drill-thru
Connector JST Corp. ELR-15V
Tap for manual brake release3-M6 PCD175
φ
φφ
φ φ φ φ
φ
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
1413
Motor Dimension
The figures on this page show the external dimensions of the
two low-profile motor in the YS Series. Please check that the
motors you plan to order will fit your workspace specifications.
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
ESA Driver Units
The compact low-cost ESA Driver Units are specially designed
for use with YS and Megatorque Motors’ YS Series. They
feature a built-in auto-tuning function to eliminate the time-
consuming task of gain compensation and a new analog speed
or torque command function.
There are seven basic ESA Driver Units, one to suit the
maximum torque of each size of Megatorque Motor. Each is
available in two version, the ESA23 version having a wider
range of functions than the ESA23 version, and available in
either 100/110V or 200/220V AC types (except for the M-ESA-
Y5240 models which run only on 200/220V), giving a total of 26
standard models (see table below).
When ordering, please specify the power supply and motor
model you plan to use as some Driver Units may be
incompatible with some motors.
Driver unit reference number ESA23 models ESA25 models ESA23 models ESA25 modelsM-ESA-Y2005T23 M-ESA-Y2005T25 M-ESA-Y2005V23 M-ESA-Y2005V25M-ESA-Y3008T23 M-ESA-Y3008T25 M-ESA-Y3008V23 M-ESA-Y3008V25M-ESA-Y2020T23 M-ESA-Y2020T25 M-ESA-Y2020V23 M-ESA-Y2020V25M-ESA-Y3040T23 M-ESA-Y3040T25 M-ESA-Y3040V23 M-ESA-Y3040V25M-ESA-Y4080T23 M-ESA-Y4080T25 M-ESA-Y4080V23 M-ESA-Y4080V25M-ESA-Y5120T23 M-ESA-Y5120T25 M-ESA-Y5120V23 M-ESA-Y5120V25M-ESA-Y5240T23 M-ESA-Y5240T25
Power supply voltage 200V or 220V AC, 50/60 Hz single-phase or 3-phase 100V or 110V AC, 50/60 HzPower capacity Depends on motor sizeMass 2.2 kg (ESA23 models) / 3 kg (ESA25 models)Operating conditions Temperature: 0–50°C, Humidity: 20–90% Use indoors, free from dust, condensation and
corrosive gasesPositioning command formats Internal program drive; Pulse train input drive; RS-232C communications drivePulse train input Maximum input frequency 614.4 Kpps; Input pulse format: CW/CCW(1)
Input signals ESA23 models Emergency stop, servo on, internal program select (max. 16 steps(2)), home limit switch, startESA25 models Emergency stop, servo on, internal program select (max. 64 steps), home limit switch, home return
start, analog command (±10V DC), integration control off, gain reduction, jog operation, overtravelOutput signal Position feedback Output signal format: line driver (in Z-phase can only be switched to open collector)
Control output Driver Unit ready, in positionAlarm functions Excess position error, software thermal, overtravel, controller error, resolver error, motor
overcurrent, hear sink overheat, main circuit voltage error, control circuit low voltageMonitor functions Analog speed monitor, alarm status, RS-232C communications monitor (parameters, program
contents, position data, alarm messages)Communications Serial RS-232C communications, transmission speed: 9600 bpsOther Automatic gain compensator (auto-tuning) function using RS-232C communications commands
Principal SpecificationsThe twenty-six standard models of ESA Driver Units
Notes: (1) Input pulse format can be switched from CW/CCW to pulse/direction or to A-phase/B-phase.(2) Part of the internal program select input can be modified to provide jog, travel limit input, clear alarm input or home return start.
If your requirements differ from the standard specifications, please contact NSK.
Megatorque Motor®
Driver Unit Dimensions
Unit: mm
✽(1
45)
130±
0.2
✽(60)
✽(145)
130±0.2
40±0.4
130h
8
(16
4.5) 0 -0
.063
30+
0.5
0
20
(1)
(3)
Max
.115
✽(
170)
Output rotor mounting holes6-M5×0.8×7PCD120 (60° equal pitch)
Small panhead screws (3 points)
PCD154 (120° equal pitch)
Connector JST Corp. ELR-15V
Base mounting holes 4- 7 drill-thruφ
φ φ
φ φ
Unit: mm
✽(1
80)
160±
0.2
✽(60)
✽(180)
160±0.2
40±0.4
155h
8
(20
6.5) 0 -0
.063
44+
0.5
0
17
(1.5)
(4)
Max
.135
✽(
210)
Output rotor mounting holes6-M6×1.0×6
PCD145 (60° equal pitch)
Small binding head screws (3 points)PCD194.5 (120° equal pitch)
Connect JST Corp. ELR-15V
Base mounting holes 4- 10 drill-thruφ
φ φ
φ
φ
M-YS2005GN001 (low-profile)
Mounting flanges can be attached to front or back of unit.
Mounting flanges can be attached to front or back of unit.
170
85
50
5
17.5
919
7
180
(17.
5)17
.5
215
ESA
CN4CN1
CN2
MOTOR
FUSE1250V10A
FUSE2250V10A
CONT AC90-220V
MAIN AC200-220V
R
ST
FGND
POWER
DISP
RS232C
VO
VELGNDCN3SENS0R
Unit: mm
NSK
For dimensions marked ∗, an extra 2–3 mm allowance is required for your workspace due to their variations.
These figures show the external dimensions of the ESA Driver Units.
ESA23 version ESA25 version
M-YS3008GN001 (low-profile)
Mounting flanges can be attached to front or back of unit.
Mounting flanges can be attached to front or back of unit.
170
10585 2050 17.5
6
8.5
180
215
ESANSK
CN4MOTOR
FUSE1 250V10AFUSE2 250V10A
CONTAC90-220V
MAIN AC200-220V
FGNO
Type No.
NSK Ltd. MADE IN JAPAN
POWER
DISP
CN1
CN2
CN3
RS-232C
VO
VELGND
SENSOR
Unit: mm
1615
SVON
RUN
PRG3
PRG1
CWP–
CCWP–
∗CHA
∗CHB
CHZ
SGND
DRDY+
IPOS
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DC24
EMST
HLS
PRG2
PRG0
CWP+
CCWP+
CHA
CHB
∗CHZ
BRK
DRDY–
COM
Servo-on
Emergency stop
Home position limit switch
Start Internal program /channel select 0 channel select 1 channel select 2 channel select 3
Thermal sensor output
Master controller
3-phase 200/220V ACSingle-phase 200/220V AC or 100/110V AC
R
S
T
Isolation transformer
Circuit breaker
Magnetic switches
Noise filter, etc.
24V DC
5V DC
CW pulse train
CCW pulse train
CONT
MAIN
F GND
TB
CN4 MOTOR
CN3 SENSOR
DC24
SVON
EMST
HLS
RUN
PRG0
PRG1
PRG2
PRG3
CWP+
CWP–
CCWP+
CCWP–
13
25
12
11
24
9
22
10
23
8
21
7
20
CN2
CN2
CN1 RC232C
DRDY+
DRDY–
BRK
IPOS
COM
15
2
3
14
1
Handy TerminalM-FHT11
Driver Unit ready
Brake outputin position
DC24V
Megatorque Motor
DC24
spare
RUN
PRG5
PRG4
PRG3
PRG2
PRG1
PRG0
NC
NC
AIN+
AIN–
NC
spare
spare
spare
spare
COM
SVON
IOFF
HOS
OTM
CWP–
CCWP–
∗CHA
∗CHB
CHZ
SGND
DRDY+
IPOS
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DC24
EMST
HLS
CLR
OTP
CWP+
CCWP+
CHA
CHB
∗CHZ
BRK
DRDY–
COM
sparesparesparesparesparespare
DIRJOG
NCNC
MON+MON–
NCNC
sparespare
HOMEspare
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ESA23 Driver Unit
Code Pin No. Name PurposeInput CWP+ 8 CW pulse train (+) Turns rotor clockwise(1) using a pulse train signals CWP– 21 CW pulse train (–) (Either pulse train or A-phase can be selected)
CCWP+ 7 CCW pulse train (+) Turns rotor counterclockwise(1) using a pulse train CCWP– 20 CCW pulse train (–) (Either pulse train or B-phase can be selected)EMST 12 Emergency stop stop the motor and locks the servoSVON 25 Servo on Turns the servo onPRG0 9 Program/channel select 0(2)
PRG1 22 Program/channel select 1(2) In combination, internal program/channel selections 0–3 allow selection of PRG2 10 Program/channel select 2(2) 0–15 execution channelsPRG3 23 Program/channel select 3(2)
HLS 11 Home limit switch Completes the return home operationRUN 24 Start Starts the selected channelDC24 13 24V DC external supply External power supply for input signals (24V DC, 0.2A or more)
Output CHA 6 Position feedback signal A-phasesignals CHB 5 Position feedback signal B-phase
CHZ 17 Z-phase/Digital position signal MSB Pulse position line driver output signals for position feedback *CHA 19 Position feedback signal A-phase Z-phase signal can only be switched to open collector*CHB 18 Position feedback signal B-phase*CHZ 4 Z-phase/Digital position signal MSBSGND 16 Signal ground Ground for position feedback signalsCOM 1 Output signal common Common signal for in position and brake controlDRDY+ 15 Driver Unit ready (+) When closed, signal that Driver Unit is ready for commands DRDY– 2 Driver Unit ready (–) (Open if Driver Unit is not ready and during alarms)IPOS 14 In position When closed, signals that positioning has been completedBRK 3 Brake Normally closed to release brake
Code Pin No. Name PurposeJOG 9 Jog drive Starts jog driveDIR 22 Rotation direction indicator Sets jog drive directionOTP 9 Overtravel limit (+) Overtravel signal in clockwise directionOTM 22 Overtravel limit (–) Overtravel signal in counterclockwise directionCLR 10 Clear Clears alarms and the positioning deviation counterHOS 23 Home return start Starts home returnJOG 10 Jog drive Starts jog driveDIR 23 Rotation direction indicator Sets jog drive direction
Notes:(1) Direction as seen from the output rotor.(2) These four signals can be changed to the
functions shown in the four tables on the rightby selecting the parameter setting code via theHandy Terminal.
ESA25 Driver Unit
Code Pin No. Name PurposeInput CWP+ 8 CW pulse train (+) Turns rotor clockwise(1) using a pulse train signals CWP– 21 CW pulse train (–) (Either pulse train or A-phase can be selected)
CCWP+ 7 CCW pulse train (+) Turns rotor counterclockwise(1) using a pulse train CCWP– 20 CCW pulse train (–) Stops the motor and locks the servoEMST 12 Emergency stop (Either pulse train or B-phase can be selected) SVON 25 Servo on Turns the servo onHOS 23 Home return start Initiates return home and start functionHLS 11 Home limit switch Limit switch for home return operationCLR 10 Clear input Clears alarms and the positioning deviation counterIOFF 24 Integration control off Switches integral and gain reduction on and offOTP 9 Overtravel limit (+) Overtravel signal in clockwise directionOTM 22 Overtravel limit (–) Overtravel signal in counterclockwise directionDC24 13 24V DC external supply External power supply for input signals (24V DC, 0.2A or more)
Output CHA 6 Position feedback signal A-phasesignals CHB 5 Position feedback signal B-phase
CHZ 17 Z-phase/Digital position signal MSB Pulse position line driver output signals for position feedback *CHA 19 Position feedback signal A-phase Z-phase signal can only be switched to open collector*CHB 18 Position feedback signal B-phase*CHZ 4 Z-phase/Digital position signal MSBSGND 16 Signal ground Ground for position feedback signalsCOM 1 Output signal common Common signal for in position and brake controlDRDY+ 15 Driver Unit ready (+) When closed, signals that Driver Unit is ready for commands DRDY– 2 Driver Unit ready (–) (Open if Driver Unit is not ready and during alarms)IPOS 14 In position When closed, signals that positioning has been completedBRK 3 Brake Normally closed to release brake
Note:(1) Direction as seen from the output rotor.
Code Pin No. Name PurposeInput DC24 19 24V DC external supply External power supply for input signals signals (24V DC, 0.2A or more)
RUN 17 Starts Starts the selected channelPRG0 11 Program/channel select 0PRG1 12 Program/channel select 1
In combination, internal program/channel PRG2 13 Program/channel select 2
selections 0–5 allow selection of 0–63 PRG3 14 Program/channel select 3
execution channelsPRG4 15 Program/channel select 4PRG5 16 Program/channel select 5JOG 30 Jog drive Starts jog driveDIR 31 Direction command Sets direction of jog driveAIN+ 8 Analog command input These two terminals are used when analog AIN– 7 Analog input ground input is selected in speed or torque modes
Output MON+ 27 Monitor outputsignals MON– 26 Monitor ground
Output terminals for monitor operationHOME 21 Home return completeCOM 1 Output signal common
Pin Arrangement and System Wiring Diagram
Pin Arrangement
Input and Output Signals for CN2 Input and Output Signals for CN2
Input and Output Signals for CN5
ESA Driver Units
CN5 pin arrangement
Dsub 37 pins A set of CN5connectors is providedwith the ESA Driver Unit.
CN2 pin arrangement
Dsub 25 pins A set of CN2connectors is providedwith the ESA Driver Unit.
CN2 pin arrangement
Dsub 25 pins A set of CN2 connectors is
provided with the ESA Driver Unit.
The brake output signal is intended to control the brake. Do not use it as the power supply.You can connect the CN2 or CN5 pins to suit the requirements of your application.
1817
Accessories
Handy TerminalWhen setting up a Megatorque Motor system for the first time or
if the motor is not connected to a personal computer, you will
need a Handy Terminal to input parameters and programs. The
Handy Terminal uses an RS-232C interface.
Motor and Driver Unit Cable Set
Length of standard cable setsCable sets for motors Cable sets for motors Cable length
without brakes with brakes
M-C002SS29 M-C002SS28 2mM-C004SS29 M-C004SS28 4mM-C008SS29 M-C008SS28 8mM-C015SS29 M-C015SS28 15mM-C030SS29 M-C030SS28 30m
Order number M-FHT11
ESA Driver Units
CN4
CN3
MOTOR
SENSOR
R
S
T
Isolation transformer
Circuit breaker
Magnetic switch
Noise filter
Master controller
CONT
MAIN
FGND
TB
RS-232C
Handy TerminalFHT11
F•G
DC24V Servo-on
Emergency stop
Return home and start
Home limit switch
+direction overtravel limit
–direction overtravel limit
Integration off
Clear
DC5V CW pulse train
CCW pulse train
DC24VProgrammed operation start
Internal program selection bit 5
Internal program selection bit 4
Internal program selection bit 3
Internal program selection bit 2
Internal program selection bit 1
Internal program selection bit 0
Jog operation
Jog direction select
Analog command
Analog monitor
F•G
DC24
SVON
EMST
HOS
HLS
OTP
OTM
IOFF
CLR
CWP+
CWP–
CCWP+
CCWP–
DC24
RUN
PRG5
PRG4
PRG3
PRG2
PRG1
PRG0
JOG
DIR
AIN+
AIN–
MON+
MON–
19
17
16
15
14
13
12
11
30
31
8
7
27
26
13
25
12
23
11
9
22
24
10
8
21
7
20
CN2
CN5
CN2
CN5
DRDY+
DRDY–
BRK
IPOS
COM
15
2
3
14
1
HOME
COM
21
1
Master controller
Driver Unit ready
DC24V
Brake output in-position
Home return complete
CN1
3-phase 200/220V ACSingle-phase 200/220V AC or 100/110V AC
The brake output signal is intended to control the brake.Do not use it as the power supply.You can connect the CN2 or CN5 pins to suit the requirements of your application.
Megatorque Motor
Thermal sensor output
15 10 5
14 9 4
13 8 3
12 7 2
11 6 1
Connector JST Corp.Resolver cable
Connector shell JAE Corp. Connector JAE Corp.DA-15P-NDA-C1-J10
Motor cable
L
Connector AMP Corp.172495-1 24
(100)
ELP-15V
(24) 42 19
4025
611
to sensor
7
6
5
4
23
1
15 10 5
14 9 4
13 8 3
12 7 2
11 6 1
Resolver cable
Connector shell JAE Corp. Connector JAE Corp.DA-15P-NDA-C1-J10
Motor cable
Connector AMP Corp.172495-1 24
(100)
42 19
4025
to brake
to sensor
7
6
5
4
23
1
L
Cable set (for standard, knock-pin hole, low-profile motors)
Cable set (for motors with brake)
(24)
611
φφ
φφ
CN4
CN3
MOTOR
SENSOR
R
S
T
Isolation transformer
Circuit breaker
Magnetic switch
Noise filter
Master controller
CONT
MAIN
FGND
TB
RL1
RS-232C
Handy TerminalFHT11
• Connect CN2 and CN5 wiring as required.• Do not use the brake output signal as direct power supply to the magnetic brake.
Signal phase AC200V
Power supply unit for the magnetic brake.
M-FZ063-1
1
2
3
4
5
6
7
F•G
DC24V Servo-on
Emergency stop
Return home and start
Home limit switch
+direction overtravel limit
–direction overtravel limit
Integration off
Clear
DC5V CW pulse train
CCW pulse train
DC24VProgrammed operation start
Internal program selection bit 5
Internal program selection bit 4
Internal program selection bit 3
Internal program selection bit 2
Internal program selection bit 1
Internal program selection bit 0
Jog operation
Jog direction select
Analog command
Analog monitor
F•G
DC24
SVON
EMST
HOS
HLS
OTP
OTM
IOFF
CLR
CWP+
CWP–
CCWP+
CCWP–
DC24
RUN
PRG5
PRG4
PRG3
PRG2
PRG1
PRG0
JOG
DIR
AIN+
AIN–
MON+
MON–
19
17
16
15
14
13
12
11
30
31
8
7
27
26
13
25
12
23
11
9
22
24
10
8
21
7
20
CN2
CN5
CN2
CN5
DRDY+
DRDY–
BRK
IPOS
COM
15
2
3
14
1
HOME
COM
21
1
DC24V
RL1
Master controller
Driver Unit ready
DC24V
Brake output in-position
Home return complete
CN1
3-phase 200/220V ACSingle-phase 200/220V AC or 100/110V AC
Megatorque Motor
Thermal sensor output
ESA25 Driver Units (without brake) The motor and driver cable set is made of NSK’s special Robot Cable, which will stand up
to repeated bending.
Please note that motors with a brake need a special cable (see table and diagrams below).
Cables are available in standard lengths of 2, 4, 8, 15 and 30 meters.
ESA25 Driver Units (with brake)
System Wiring Diagrams
2019
90
12
15.2
75.6
130
2324
.6
8.8
40
1 2 3 4 5 6 7
DC POWER SUPPLY
NSK CO. , LTD. MADE IN JAPAN
MODEL M- FZ063–1
INPUT AC 200V 50/60Hz
OUTPUT H I G H
LOW
180V
90V
4A
2A
1 2 3 4 5 6 7
200V AC Ground Brake Brake switch contacts
Important: The brake output of the ESA Driver Units cannot be used directly to switch the brake on or off. Please use an external brake switch contact for this purpose.
The capacity of the brake switch contacts must be at least 10 times that of the inductive load current at 180V DC.
Do not short out terminal 4 and 5 while the power is switched on. Always switch the brake on and off using terminals 6 and 7. Never short out terminals 6 and 7 and switch the brake on and off
using the AC side.
A case to increase holding rigidity.
Servo state of motor
RUN input
Motor rotation
IPOS output (FW≠0)
IPOS output (FW=0)
User side brake signal
Brake state
IOFF input
Servo onServo off
ONOFF
Close Open
Close Open
ONOFF
ClampRelease
ONOFF
Close Open
ONOFF
ClampRelease
ONOFF
Clamping time + αReleasing time + α
A case for safety brake.
BRK output
User side brake signal
Brake state
IOFF input
Releasing time + α Releasing time + α
Clamping time + α
Output rotor Axial runout
Radial runout
1
2
Choosing a Motor
Recommended Sequence Diagram
The M-FZ063 brake power supply is specially designed for use
with the YS Series motors with a brake. The power supply is of
the overexcitation type, allowing it to be switched between full-
and half-wave settings (overexcitation, full-wave rectification,
retention, half-wave). It conforms to CE safety requirements.
When selection a motor, please take note of the characteristics
described on the next four pages.
Input voltage 200/220V AC, 50/60 Hz
Output voltage 180V DC, 4A (overexcitation) 90V DC, 2A (rated)
Overexcitation time 0.35 seconds
Mass 0.3 kg
Specifications of the Brake Power Supply
Motor No.s starting M-YS2020 M-YS3040 M-YS4080 M-YS5120
Inductive load current (A) 0.36 0.50 0.66 0.72
Dimensions of Brake Power Supply Connecting the Terminals
Speed-torque CharacteristicsEach of the Megatorque Motors’ YS Series gives very high
torque at low speeds. These graphs show the speed-torque
characteristics at 200V and 100V AC.
The YS Series achieves small runout
➀ Axial runout (mm): 0.050 max.
➁ Radial runout (mm): 0.050 max.
Accuracy Standards
Spe
ed, r
ps
3.0
2.5
2.0
1.5
1.0
0.5
0 20 40 60 80 120100
Output torque, N•m
M-YS2005
M-YS3008
M-YS2020
M-YS3040
M-YS4080
M-YS5120
Power supply: 100V AC
M-YS2005
M-YS3008
M-YS2020
M-YS3040
M-YS4080
M-YS5120
M-YS5240
Power supply: 200V AC
Spe
ed, r
ps
3.0
2.5
2.0
1.5
1.0
0.5
0 50 100 150 200 250
Output torque, N•m
Accessories
Brake Power Supply (M-FZ063-1)
Motor Brake Static friction torque Torsional rigidity Brake clamping time Brake releasing time Capacity type model (N•m) (sec./N•m) (msec) (msec) (W)
YS2020 RNB2K 20 4.5 26 10 17
YS3040 RNB4K 40 4.9 62 3 23
YS4080 RNB8K 80 1.3 66 5 30
YS5120 RNB12K 120 1.9 78 9 33
Inertia GD2, kgf•m2
0.030
0.5
1.0
1.5
0.01 0.1
0.1 1.0
Moment of inertia, kg•m2
Pos
ition
ing
time,
sec
Pos
ition
ing
time,
sec
1.5
1.0
0.5
00.1
0.05 0.1 0.5 1
0.5 1 5
Moment of inertia, kg•m2
Inertia GD2, kgf•m2
45° 90° 180°
Moment of inertia, kg•m2
Pos
ition
ing
time,
sec
1.5
1.0
0.5
00.05 0.1 1.0
1.00.10.01
Inertia GD2, kgf•m2
Power supply:
200/220V AC
100/110V AC
Degrees rotated:
15° 30°
2221
Maximum Speed-load Characteristics How to Determine Minimum Positioning TimeFor your reference, this page shows how to determine
minimum positioning time with Megatorque Motors’ YS Series.
To determine minimum positioning time, find the total of the
moment of inertia of the work or jig mounted on the motor and
the moment of inertia of the motor itself, then read off the
minimum positioning time from the appropriate graph below.
Minimum positioning time curves
Motor order numbers starting with M-YS2005 M-YS3008 M-YS2020 M-YS3040 M-YS4080 M-YS5120 M-YS5240
Dimension A (mm) 26 25.5 46.5 52.5 54 58.5 58.5
ExampleMotor: M-YS3040FN501 (at 100/110V AC)
Total moment of inertia: 1.25 kg•m2 (GD2 = 5 kgf•m2)
Index angle: 30°
In this case, the minimum positioning time will be 0.5 sec. as
shown by the arrow on page 23.
Choosing a Motor
Inertia GD2, kgf•m2
Moment of inertia, kg•m2
0.05 0.1 1 1 5 10 50 100
5001005010510.50.100
0.5
1.0
1.5
2.0
2.5
3.0
Spe
ed, r
ps
M-YS2005
M-YS3008
M-YS2020
M-YS3040
M-YS4080
M-YS5120
M-YS5240
If F is an external force, then • Axial load Fa = F + weight of payload• Moment load M = 0
If F is an external force, then• Axial load Fa = F + weight of payload• Moment load M = F×L
If F is an external force, then• Axial load Fa = weight of payload• Moment load M = F×(L+A)
F
FL
F
L
A
This graph shows the maximum speed of each motor when
rotated through 180° under a load.
Important: This graph does not show maximum inertia values.
If you plan to use a YS Series motor at or near the inertia limit,
please consult NSK before placing your order.
Motor No.s starting M-YS3008
Motor No.s starting M-YS2005(100V and 200V power supplies give identical curves)
Motor No.s starting M-YS2020How to Calculate Axial and Moment Loads
Axial and moment loads
2423
CE Marking
OutlineBefore any item of machinery can be exported to a country in the European Union, it must conform to the new European system of
safety requirements (CE Marking).
The CE Marking certifies that a product conforms to EC directives.
NSK has worked with specialist consultants, an EU Notified Body and an EU Competent Body to ensure that the all products in the
Megatorque Motors’ YS Series conform to the CE Marking Directives.
NSK positions the YS Series as “components” to be incorporated in any system that you, the user, may build and has published an
“EC declaration of Incorporation” to this effect. This is intended to facilitate their incorporation into your system and the CE Marking of
the overall system.
The pertinent EC directives are as follows:• Machinery Directive _____________________________________________________Effective as of January 1, 1995
A directive governing mechanical, electrical and human safety
• Electromagnetic Compatibility Directive ______________Effective as of January 1, 1996
A directive governing the effect of electromagnetic waves on other devices
• Low Voltage Directive _________________________________________________Effective as of January 1, 1997
A directive governing electrical safety
If you plan to incorporate a Megatorque Motor into your own system, you must: • install an isolation transformer and circuit breaker in front of the main power supply
• install a noise filter(s) in front of the main power supply
• install a circuit that will shut down the main power supply on detecting output from the motor’s internal thermal sensor
• provide additional protection against water and foreign particles, depending on the specifications of the system into which the motor
is to be incorporated (for more information, please contact NSK)
For your convenience, we offer this example of a wiring diagram
of a system incorporating a Megatorque Motor.
Choosing a Motor
Moment of inertia, kgf•m2
0.1 0.5 1 5 10
1005010510.50.10
0.5
1.0
1.5
2.0
2.5
Pos
ition
ing
time,
sec
Inertia GD2, kgf•m2
Moment of inertia, kg•m2
Pos
ition
ing
time,
sec
Inertia GD2, kgf•m2
0.5 1.0 5.0 10 50 100
50010050105.01.00
1.0
2.0
3.0
Moment of inertia, kgf•m2
0.10
0.5
1.0
1.5
2.0
0.5 1 5
510.50.10.05
10 20
Pos
ition
ing
time,
sec
Inertia GD2
, kgf•m2
Moment of inertia, kg•m2
0.1 0.5 1 5 10 50 100
5001005010510.50.10
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Pos
ition
ing
time,
sec
Inertia GD2, kgf•m2
Pow
er s
uppl
y
Isol
atio
n tr
ansf
orm
er
Circ
uit b
reak
er
Magnetic switches
Noi
se fi
lter
Noi
se fi
lter
Handy Terminal M-FHT11
Con
trol
pow
er
supp
lyM
ain
pow
er s
uppl
y
Con
nect
dire
ctly
to m
otor
flan
ge
(optional)
CN1
CN2
FG
M
R
A+~C–
FG
CN3
FG
Thermal sensor
Motor
User’s control device
Motor No.s starting M-YS3040 Motor No.s starting M-YS4080
Motor No.s starting M-YS5120Motor No.s starting M-YS5240(available only 200V AC versions)
Example Wiring DiagramWiring diagram
2625
Determining Your Requirements
These two pages give all the numbers you will need to order any product from the YS Series or a complete Megatorque Motor system.
For your convenience, the numbers are grouped according to compatibility of components, the order numbers for the appropriate ESA
Driver Unit and cable sets being shown next to the order numbers for the Megatorque Motors.
System based on a low-profile YS motor
Caution
Combinations with ESA23 Driver Units
Handy TerminalThe Handy Terminal is compatible with all motors and Driver Units.
• Do not use these units in environments prone to fire or explosion.
• Please read the instruction manual carefully before using these units.
Order Form
Please use this form to list your system requirements. The information you give us will help to ensure that
the components selected provide the optimum performance for your needs. If you would like more
information about any aspect of the Megatorque Motor system, please contact your NSK representative
at one of our worldwide offices listed on the back cover.
Motor load capacity required Axial load____________(N)
Moment load_______(N•m)
Max. motor speed required (2 or 3 rps) _______(rps)
Power supply to be used (100V or 200V AC) ________(V AC)
How many Megatorque Motors do you need? ________of model
(Please complete order number) M-YS __________________
How many ESA Driver Units do you need? _________of model
(Please complete order number) M-ESA ________________
How many Handy Terminals do you need?
_______of model M-FHT11
How many cables do you need? _______of model
(Please complete order number) M-C0 __________________
Your name and title
Department/Company
Address
Phone: Fax:
Motor order no. Driver Unit order no. Supply voltage
M-YS2005GN001M-ESA-Y2005T23 200V ACM-ESA-Y2005V23 100V AC
M-YS3008GN001M-ESA-Y3008T23 200V ACM-ESA-Y3008V23 100V AC
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Handy Terminal order number M-FHT11
Combinations with ESA25 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2005GN001M-ESA-Y2005T25 200V ACM-ESA-Y2005V25 100V AC
M-YS3008GN001M-ESA-Y3008T25 200V ACM-ESA-Y3008V25 100V AC
Combinations with ESA23 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2020GN001M-ESA-Y2020T23 200V ACM-ESA-Y2020V23 100V AC
M-YS3040GN501M-ESA-Y3040T23 200V ACM-ESA-Y3040V23 100V AC
N-YS4080GN001M-ESA-Y4080T23 200V ACM-ESA-Y4080V23 100V AC
M-YS5120GN001M-ESA-Y5120T23 200V ACM-ESA-Y5120V23 100V AC
M-YS5240GN001 M-ESA-Y5240T23 200V AC
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Note: M-YS5240 motors are available only in 200V AC versions.
Combinations with ESA25 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2020GN001M-ESA-Y2020T25 200V ACM-ESA-Y2020V25 100V AC
M-YS3040GN501M-ESA-Y3040T25 200V ACM-ESA-Y3040V25 100V AC
N-YS4080GN001M-ESA-Y4080T25 200V ACM-ESA-Y4080V25 100V AC
M-YS5120GN001M-ESA-Y5120T25 200V ACM-ESA-Y5120V25 100V AC
M-YS5240GN001 M-ESA-Y5240T25 200V AC
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Note: M-YS5240 motors are available only in 200V AC versions.
Combinations with ESA23 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2020GN011M-ESA-Y2020T23 200V ACM-ESA-Y2020V23 100V AC
M-YS3040GN511M-ESA-Y3040T23 200V ACM-ESA-Y3040V23 100V AC
N-YS4080GN011M-ESA-Y4080T23 200V ACM-ESA-Y4080V23 100V AC
M-YS5120GN011M-ESA-Y5120T23 200V ACM-ESA-Y5120V23 100V AC
M-YS5240GN011 M-ESA-Y5240T23 200V AC
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Cable set order no. Cable lengthM-C002SS29 2mM-C004SS29 4mM-C008SS29 8mM-C015SS29 15mM-C030SS29 30m
Note: M-YS5240 motors are available only in 200V AC versions.
Order NumbersSystems based on a YS motor in standard inventory
System based a YS motor with knock-pin holes
Combinations with ESA25 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2020GG001M-ESA-Y2020T25 200V ACM-ESA-Y2020V25 100V AC
M-YS3040GG501M-ESA-Y3040T25 200V ACM-ESA-Y3040V25 100V AC
N-YS4080GG001M-ESA-Y4080T25 200V ACM-ESA-Y4080V25 100V AC
M-YS5120GG001M-ESA-Y5120T25 200V ACM-ESA-Y5120V25 100V AC
Cable set order no. Cable lengthM-C002SS28 2mM-C004SS28 4mM-C008SS28 8mM-C015SS28 15mM-C030SS28 30m
Brake power supply Supply voltage M-FZ603 200V AV
Note: The external brake power supply runs only on 200V AC. If you plan to use a 100V AC power supply, you will need a voltage transformer.
System based on a YS motor with a brake
Combinations with ESA25 Driver UnitsMotor order no. Driver Unit order no. Supply voltage
M-YS2020GN011M-ESA-Y2020T25 200V ACM-ESA-Y2020V25 100V AC
M-YS3040GN511M-ESA-Y3040T25 200V ACM-ESA-Y3040V25 100V AC
N-YS4080GN011M-ESA-Y4080T25 200V ACM-ESA-Y4080V25 100V AC
M-YS5120GN011M-ESA-Y5120T25 200V ACM-ESA-Y5120V25 100V AC
M-YS5240GN011 M-ESA-Y5240T25 200V AC
Note: M-YS5240 motors are available only in 200V AC versions.