8LSN - Order key

8LS

b

c

d

.

ee

nnn

ff

gg

-

h

Cooling / Construction type

Size

Length

Motor encoder system

Nominal speed

Motor options

Special motor options

Motor version

Order keys only provide information about possible combinations in exceptional cases.

Information about possible combinations is available in the CAD configurator.

Cooling type / Construction type (b)

Cooling type / Construction type (b)

8LS

b

c

d

.

ee

nnn

ff

gg

-

h

The cooling type is defined by a character (b) in the order number.

Cooling type (b)

Connection technology (see motor options)

Available mounting types

Mounting flange

Mounting flange and mounting base

8LSN

Self-cooling, increased mass moment of inertia

Straight built-in connector

Yes

---

Angled built-in connector (swivel)

Single-cable solution (hybrid)

8LSN

Cooling type 8LSN is self-cooling and has a slim, elongated design.

These motors must be attached to the machine with the mounting flange, which also serves as a cooling surface.

Size (c)

Size (c)

8LS

b

c

d

.

ee

nnn

ff

gg

-

h

8LSN three-phase synchronous motors are available in sizes 4 and 5. These differ in dimensions (especially flange dimensions) and power data.

The sizes are differentiated by a digit (c) in the order number. The larger the number, the larger the flange dimensions and power data of the respective motor.

Availability

Available sizes (c)

4
8LSN4

5
8LSN5

8LSN

Yes

YesWith sensitive applications, natural resonances can occur that can have a negative effect on the process. Special attention must be paid to natural resonances during commissioning.

Length (d)

Length (d)

8LS

b

c

d

.

ee

nnn

ff

gg

-

h

8LSN three-phase synchronous motors are available in different lengths. These differ in the power data with identical flange dimensions.

The lengths are differentiated by a number (d) in the order number. The larger the number, the longer the respective motor.

Availability

Available lengths (d)

3

8LSN43

4

8LSN44

5

8LSN45

6

8LSN46

7

8LSN47

8

8LSN48

8LSN4

Yes

Yes

Yes

Yes

---

---

Available lengths (d)

3

8LSN53

4

8LSN54

5

8LSN55

6

8LSN56

7

8LSN57

8

8LSN58

8LSN5

---

Yes

Yes

Yes

Yes

Yes

Motor encoder system (ee)

Motor encoder system (ee)

8LS

b

c

d

.

ee

nnn

ff

gg

-

h

8LSN three-phase synchronous motors are available with EnDat encoders as well as resolvers. The motor encoder system is specified as part of the order number in the form of a 2-digit code (ee).

Resolver

Technical data

Order code (ee)

R0

Precision [']

10

Vibration during operation [m/s2]

10 < f ≤ 500 Hz: ≤196

Shock during operation [m/s2] (11 ms duration)

≤981

Availability

Available resolvers / Order code (ee)

R0

8LSN4...-0

Yes

8LSN5...-0

Yes

8LSN....-3

---

Inductive EnDat encoders

Technical data

Encoder type / Order code (ee)

EA

EB

DA

DB

SA

SB

Operating principle

Inductive

EnDat protocol

2.1

2.1

2.2

2.2

2.2

2.2

Functional safety1)

---

---

Yes

Yes

Yes

Yes

Single-turn/Multi-turn

S

M

S

M

S

M

Revolutions

1

4096

1

4096

1

4096

Resolution

[bits single-turn / bits multi-turn]

19/0

19/12

19/0

19/12

19/0

19/12

Precision ["]

180

65

Cutoff frequency ≥ [kHz]

6

Digital pos. in the encoder

Stator - Vibration during operation

Max. [m/s2]

200

400

Rotor - Vibration during operation

Max. [m/s2]

200

600

Max. shock during operation [m/s2]

2000

2000

Probability of dangerous failure per hour (PFH) SIL 2

---

---

≤15 * 10-9

Manufacturer's product ID

ECI 1319
EnDat01

EQI 1331
EnDat01

ECI 1319 FS
EnDat22

EQI 1331 FS
EnDat22

ECI 1319 FS
EnDat22

EQI 1331 FS
EnDat22

1)See appendix B "Safety level overview for ACOPOS product family safety functions" in the SafeMOTION user's manual (MAACPMSAFEMC-ENG) in the Downloads section of the B&R website (www.br-automation.com).
There are additional limitations when combining B&R motors with a gearbox, see section "1.2.1 ACOPOSmulti SafeMOTION EnDat 2.2 and ACOPOS P3 SafeMOTION" in the SafeMOTION user's manual (MAACPMSAFEMC-ENG) in the Downloads section of the B&R website (www.br-automation.com).

Availability

Available encoders / Order code (ee)

EA

EB 2)

DA

DB

SA

SB

8LSN4...-0

Yes

Yes

---

---

---

---

8LSN4...-3

---

---

Yes

Yes

Yes

Yes

8LSN5...-0

Yes

Yes

---

---

---

---

8LSN5...-3

---

---

Yes

Yes

Yes

Yes

2)Motor type EB requires at least the following versions (ACP10_SYS version or firmware version) of the ACOPOS operating systems:
  • ACOPOS: V2.090 or later
  • ACOPOSmulti: V2.031 or later

    • Optical EnDat encoders

    Technical data

    Encoder type / Order code (ee)

    E0

    E1

    D0

    D1

    S0

    S1

    Operating principle

    Optical

    EnDat protocol

    2.1

    2.1

    2.2

    2.2

    2.2

    2.2

    Functional safety1)

    ---

    ---

    Yes

    Yes

    Yes

    Yes

    Single-turn/Multi-turn

    S

    M

    S

    M

    S

    M

    Revolutions

    1

    4096

    1

    4096

    1

    4096

    Resolution

    [bits single-turn / bits multi-turn]

    13/0

    13/12

    25/0

    25/12

    25/0

    25/12

    Precision ["]

    60

    20

    Cutoff frequency ≥ [kHz]

    130

    Digital pos. in the encoder

    Stator - Vibration during operation

    Max. [m/s2]

    300

    Rotor - Vibration during operation

    Max. [m/s2]

    300

    Max. shock during operation [m/s2]

    2000

    Probability of dangerous failure per hour (PFH) SIL 2

    ---

    ---

    ≤10 * 10-9

    Manufacturer's product ID

    ECN 1313
    EnDat01

    EQN 1325
    EnDat01

    ECN 1325 FS
    EnDat22

    EQN 1337 FS
    EnDat22

    ECN 1325 FS
    EnDat22

    EQN 1337 FS
    EnDat22

    1)See appendix B "Safety level overview for ACOPOS product family safety functions" in the SafeMOTION user's manual (MAACPMSAFEMC-ENG) in the Downloads section of the B&R website (www.br-automation.com.).
    There are additional limitations when combining B&R motors with a gearbox, see section "1.2.1 ACOPOSmulti SafeMOTION EnDat 2.2 and ACOPOS P3 SafeMOTION" in the SafeMOTION user's manual (MAACPMSAFEMC-ENG) in the Downloads section of the B&R website (www.br-automation.com).

    Availability

    Available encoders / Order code (ee)

    E0

    E1

    D0

    D1

    S0

    S1

    8LSN4...-0

    Yes

    Yes

    Yes

    Yes

    Yes

    Yes

    8LSN5...-0

    Yes

    Yes

    Yes

    Yes

    Yes

    Yes

    8LSN....-3

    ---

    ---

    ---

    ---

    ---

    ---

    Nominal speed (nnn)

    Nominal speed (nnn)

    8LS

    b

    c

    d

    .

    ee

    nnn

    ff

    gg

    -

    h

    8LSN three-phase synchronous motors are available with different nominal speeds.

    The nominal speed is specified as part of the order number in the form of a 3-digit code (nnn).

    Order code (nnn)

    011

    015

    020

    022

    030

    045

    060

    Nominal speed nN [rpm]

    1100

    1500

    2000

    2200

    3000

    4500

    6000

    Availability

    8LSN4

    Available nominal speeds nN [rpm]

    1100

    1500

    2000

    2200

    3000

    4500

    6000

    8LSN43

    ---

    ---

    ---

    ---

    Yes

    ---

    Yes

    8LSN44

    Yes

    Yes

    ---

    ---

    Yes

    ---

    Yes

    8LSN45

    ---

    ---

    ---

    ---

    Yes

    ---

    Yes

    8LSN46

    ---

    ---

    ---

    ---

    Yes

    ---

    Yes

    8LSN5

    Available nominal speeds nN [rpm]

    1100

    1500

    2000

    2200

    3000

    4500

    6000

    8LSN54

    ---

    ---

    Yes

    ---

    Yes

    Yes

    ---

    8LSN55

    ---

    ---

    Yes

    ---

    Yes

    Yes

    ---

    8LSN56

    ---

    ---

    Yes

    ---

    Yes

    Yes

    ---

    8LSN57

    ---

    ---

    Yes

    Yes

    Yes

    Yes

    ---

    8LSN58

    ---

    ---

    Yes

    Yes

    Yes

    Yes

    ---

    Motor options (ff)

    Motor options (ff)

    8LS

    b

    c

    d

    .

    ee

    nnn

    ff

    gg

    -

    h

    See the following table for the corresponding code (ff) in the order key.
    The first position in the code (ff) defines the connection direction with options Cx and Dx. The second position (e.g. x0, x1, x2, x3) defines all other motor options according to the table.

    Motor option

    Order code (ff)

    Connection direction

    Oil seal

    Holding brake

    Shaft end

    Straight (top connector)

    Encoder and power cable: Separated with their own connections

    ---

    ---

    Smooth shaft

    C0

    ---

    ---

    Keyed shaft

    C1

    ---

    Standard holding brake

    Smooth shaft

    C2

    ---

    Keyed shaft

    C3

    Yes

    ---

    Smooth shaft

    C6

    Yes

    ---

    Keyed shaft

    C7

    Yes

    Standard holding brake

    Smooth shaft

    C8

    Yes

    Keyed shaft

    C9

    Available with motor encoder: DA, DB, EA, EB, E0, E1, R0, SA, SB, D0, D1, S0, S1

    Angled (swivel)

    Encoder and power cable: Separated with their own connections

    ---

    ---

    Smooth shaft

    D0

    ---

    ---

    Keyed shaft

    D1

    ---

    Standard holding brake

    Smooth shaft

    D2

    ---

    Keyed shaft

    D3

    Yes

    ---

    Smooth shaft

    D6

    Yes

    ---

    Keyed shaft

    D7

    Yes

    Standard holding brake

    Smooth shaft

    D8

    Yes

    Keyed shaft

    D9

    Available with motor encoder: DA, DB, EA, EB, E0, E1, R0, SA, SB, D0, D1, S0, S1

    Single-cable solution (hybrid), angled, swivel connector

    Encoder and power cable: Combined in one cable

    ---

    ---

    Smooth shaft

    S0

    ---

    ---

    Keyed shaft

    S1

    ---

    Standard holding brake

    Smooth shaft

    S2

    ---

    Keyed shaft

    S3

    Yes

    ---

    Smooth shaft

    S6

    Yes

    ---

    Keyed shaft

    S7

    Yes

    Standard holding brake

    Smooth shaft

    S8

    Yes

    Keyed shaft

    S9

    Available with motor encoder: DA, DB, SA, SB, D0, D1, S0, S1

    Connection direction (ff)

    Connection direction (ff)

    Power and encoder connections

    8LSN three-phase synchronous motors are available with 3 connection options.

    Straight built-in connector

    Connection direction: Straight (top)

    Encoder and power cable: Separated with their own connections

    Angled built-in connector

    Connection direction: Angled (swivel connector)

    Encoder and power cable: Separated with their own connections

    Check the angle specifications (max. 200-220°) and the feasibility with regard to requirements using the CAD configurator (cad.br-automation.com).

    Single-cable solution (hybrid)

    Connection direction: Angled, swivel connector

    Encoder and power cable: Combined in one cable

    Oil seal (ff)

    Oil seal (ff)

    		All 8LS three-phase synchronous motors are available with a form A oil seal per DIN 3760.With an oil seal, the motors have IP65 protection per EN 60034-5.

    Servicing

    To maintain functionality of the oil seal, it must be lubricated regularly with oil. An oil seal that is not lubricated will harden due to increased frictional heat and will eventually provide only dust protection.

    Holding brake (ff)

    Holding brake (ff)

    8LSN three-phase synchronous motors are available with a standard holding brake. It is installed directly behind the A-side flange on the motor and used to hold the motor shaft in a voltage-free state of the servo motor.

    Standard holding brake - Technical data

    8LSN4

    8LSN5

    Holding torque MBr [Nm]

    8

    27

    Connected load POn [W]

    18.0

    24.6

    Supply current IOn [A]

    0.75

    1.03

    Supply voltage UOn [VDC]

    24 (+6% / -10%)

    Moment of inertia JBr [kgcm²]

    0.54

    9.5

    Shaft end (ff)

    Shaft end (ff)

    All 8LS three-phase synchronous motors have shaft ends per DIN 748. The shaft end is available in several variants, and availability can be determined in the corresponding table.

    Variants

    Smooth shaft end

    A smooth shaft end is used for a force-fit shaft-hub connection and guarantees a backlash-free connection between the shaft and hub as well as a high degree of operating smoothness. The end of the shaft has a threaded center hole.

    Keyed shaft end

    A keyed shaft end is used for a form-fit torque transfer with low demands on the shaft-hub connection and for handling torque in a constant direction.

    The keyways for 8LS three-phase synchronous motors conform to keyway form N1 per DIN 6885-1. Form A keyed shafts that conform to DIN 6885-1 are used. Balancing motors with keyways is done using the shaft and fitment key convention per DIN ISO 8821.

    The end of the shaft has a threaded center hole that can be used to install machine actuators with shaft end cover plates.

    Special motor options (gg)

    Special motor options (gg)

    8LS

    b

    c

    d

    .

    ee

    nnn

    ff

    gg

    -

    h

    00...No special motor options

    Motor version (h)

    Motor version (h)

    8LS

    b

    c

    d

    .

    ee

    nnn

    ff

    gg

    -

    h

    The motor version is specified as a code (h) in the order number.

    0 ... Version 0 (motor encoders D0, D1, E0, E1, EA, EB, R0, S0 and S1)
    3 ... Version 3 (motor encoders DA, DB, SA and SB)

    Example order 1

    Example order 1

    A three-phase synchronous motor of type 8LSN45 with a nominal speed of 3000 rpm was selected for an application. Because of the construction, the cables can only be connected on the top side of the motor ("top" connection direction). The motor should also be equipped with a holding brake, a keyed shaft and a 16-line EnDat single-turn encoder.

    The code (ee) for the encoder system is EA.

    The (nnn) code for a nominal speed of 3000 rpm is 030.

    The code (ff) for the other options (oil seal, holding brake, keyed shaft and connection direction) is C3.

    The order number for the necessary motor is therefore 8LSN45.EA030C300-0.

    Example order 2

    Example order 2

    A three-phase synchronous motor of type 8LSN56 with a nominal speed of 4500 rpm was selected for an application. Because of the construction, the cables can only be connected on the back of the motor (swivel connections). The motor should also be equipped with a holding brake, smooth shaft, oil seal and 16-line EnDat multi-turn encoder.

    The code (ee) for the encoder system is EB.

    The code (nnn) for a nominal speed of 4500 rpm is 045.

    The code (ff) for the other options (oil seal, holding brake, smooth shaft end and connection direction) is D8.

    The order number for the necessary motor is therefore 8LSN56.EB045D800-0.

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