8LV

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)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

8LV motors are available with self-cooling type A (8LVA).
(Based on the 8LVA servomotors, 8LVB gear motors with directly mounted planetary gearboxes are also available. 8LVB gear motors)

These motors have a long, slender form and must be attached to the machine using the mounting flange, which also serves as a cooling surface.

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

Cooling type (b)

Connection technology (see motor options)

8LVA

Self-cooling

Built-in double angular connector

Single-cable solution (hybrid) - Angled

Single-cable solution (hybrid) - Straight

Size (c)

Size (c)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

8LVA servo motors are available in various sizes (1, 2, 3). These differ in dimensions (especially flange dimensions) and power data.

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

Available sizes (c)

8LVA1

8LVA2

8LVA3

8LVA

Yes

Yes

Yes

Length (d)

Length (d)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

8LVA servo motors are available in various 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 this number, the longer the respective motor.

Available lengths (d)

8LVAx2

8LVAx3

8LVA1

---

Yes

8LVA2

Yes

Yes

8LVA3

---

Yes

Motor encoder systems (ee)

Motor encoder systems (ee)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

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

Resolver

Technical data

Resolver / Order code (ee)

R0

Type

RE-15-1-J04

Accuracy

10 angular minutes

Vibration during operation
10 < f ≤ 500 Hz

≤500 m/s²

Shock during operation
Duration 11 ms

≤1000 m/s²

Availability

Available resolvers / Order code (ee)

R0

8LVA1

Yes

8LVA2

Yes

8LVA3

Yes

EnDat 2.2 encoder

Technical data

Encoder type / Order code (ee)

B1

B8

Z8

B9

Z9

Operating principle

Inductive

EnDat protocol

2.2

Functional safetySee 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.

---

---

Yes

---

Yes

Single-turn/Multi-turn

M

S

M

Battery-backed

Yes

---

Revolutions

65536

1

4096

Resolution

[bits single-turn / bits multi-turn]

19/16

19/0

19/12

Accuracy ['']

±120

Cutoff frequency ≥ [kHz]

Digital pos. in the encoder

Stator - Vibration during operation

Max. [m/s2]

300

400

Rotor - Vibration during operation

Max. [m/s2]

300

600

Max. shock during operation [m/s2]

1000

2000

Manufacturer's product ID

EBI 1135

ECI 1119 FS EnDat22

EQI 1131 FS EnDat22

Availability

Available encoders / Order code (ee)

B1

B8

Z8

B9

Z9

8LVA1

Yes

---

---

---

---

8LVA2

Yes

Yes

Yes

Yes

Yes

8LVA3

Yes

Yes

Yes

Yes

Yes

Nominal speed (nnn)

Nominal speed (nnn)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

8LVA servo motors are available with various 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)

005

A95

015

021

030

Nominal speeds nN [rpm]

500

950

1500

2100

3000

Availability

Size/Length

Available nominal speeds nN [rpm] at 80 VDC operation

500

950

1500

2100

3000

8LVA13

---

---

Yes

---

Yes

8LVA22

---

---

Yes

---

Yes

8LVA23

---

Yes

Yes

---

Yes

8LVA33

Yes

---

Yes

Yes

---

Motor options (ff)

Motor options (ff)

8LV

b

c

d

.

ee

nnn

ff

gg

-

h

Motor options (ff) - Order code

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 Dx, Sx and Ux. The second position (e.g. x1, x2, x3) defines all other motor options according to the table.

Built-in double angular connector (swivel)

Encoder and power cable: Separated with their own connections

Motor option

Availability

Order code (ff)

Connection direction

Oil seal

Holding brake

Shaft end

8LVA1

8LVA2

8LVA3

---

---

Smooth shaft

Yes

Yes

Yes

D0

---

---

Keyed shaft

---

Yes

Yes

D1

---

Smooth shaft

Yes

Yes

Yes

D2

---

Keyed shaft

---

Yes

Yes

D3

Yes

---

Smooth shaft

Yes

Yes

Yes

D6

Yes

---

Keyed shaft

---

Yes

Yes

D7

Yes

Smooth shaft

Yes

Yes

Yes

D8

Yes

Keyed shaft

---

Yes

Yes

D9

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

Encoder and power cable: Combined in one cable

Motor option

Availability

Order code (ff)

Connection direction

Oil seal

Holding brake

Shaft end

8LVA1

8LVA2

8LVA3

---

---

Smooth shaft

---

Yes

Yes

S0

---

---

Keyed shaft

---

Yes

Yes

S1

---

Smooth shaft

---

Yes

Yes

S2

---

Keyed shaft

---

Yes

Yes

S3

Yes

---

Smooth shaft

---

Yes

Yes

S6

Yes

---

Keyed shaft

---

Yes

Yes

S7

Yes

Smooth shaft

---

Yes

Yes

S8

Yes

Keyed shaft

---

Yes

Yes

S9

Single-cable solution (hybrid) - Straight

Encoder and power cable: Combined in one cable

Motor option

Availability

Order code (ff)

Connection direction

Oil seal

Holding brake

Shaft end

8LVA1

8LVA2

8LVA3

---

---

Smooth shaft

---

Yes

Yes

U0

---

---

Keyed shaft

---

Yes

Yes

U1

---

Smooth shaft

---

Yes

Yes

U2

---

Keyed shaft

---

Yes

Yes

U3

Yes

---

Smooth shaft

---

Yes

Yes

U6

Yes

---

Keyed shaft

---

Yes

Yes

U7

Yes

Smooth shaft

---

Yes

Yes

U8

Yes

Keyed shaft

---

Yes

Yes

U9

Connection direction (ff)

Connection direction (ff)

Power and encoder connections

8LVA servo motors are available with 3 different connection options.

Built-in double angular connector

Connection direction: Angled (swivel1))

Encoder and power cable: Separated with their own connections

Single-cable solution (hybrid)

Connection direction: Angled (swivel1))

Encoder and power cable: Combined in one cable

Single-cable solution (hybrid)

Connection direction: Straight

Encoder and power cable: Combined in one cable

1)Check the angle specifications and the feasibility with regard to requirements using the CAD configurator (cad.br-automation.com).
Oil seal (ff)

Oil seal (ff)

8LVA servo motors are available with a form A oil seal per DIN 3760.

Degree of protection per EN 60034-5 (IP code)

8LVA

8LVA1 with and without oil seal:

8LVA2 / 8LVA3 without oil seal:

8LVA2 / 8LVA3 with oil seal:

IP54The degrees of protection are only achieved if the power and signal connections are fully installed. For IP54, the motor must be mounted with the mounting flange and this mounting must correspond at least to IP54 protection.

IP64 5) For IP64, the motor must be mounted with the mounting flange and this mounting must correspond at least to IP64 protection.

IP65 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)

8LVA 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.

Technical data

8LVA1

8LVA2

8LVA3

Holding torque MBr [Nm]

0.35

2.2

4.0

Connected load POn [W]

8

8.2

13.4

Maximum speed nmax [rpm]

6000

12000

10000

Supply current IOn [A]

0.33

0.35

0.56

Supply voltage UOn [VDC]

24 (+6% / -10%)

Moment of inertia JBr [kgcm²]

0.013

0.12

0.38

Operating principle

The holding brake is a permanent magnet brake and can be controlled by the B&R drive system. Based on principle, this type of holding brake exhibits a minimal amount of backlash. Voltage (see the technical data) must be applied to release the brake.

The brake is designed as a holding brake. It not permitted to be used for operational braking! Under these conditions, the brake has a service life of approximately 5,000,000 cycles (opening and closing the brake is one cycle). Loaded braking during an emergency stop is permitted but reduces its service life.

Shaft end (ff)

Shaft end (ff)

8LVA motors have shaft ends per DIN 748.

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 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)

00 ... No special motor options

Motor version (h)

Motor version (h)

00 ... Version 0 (the motor version is specified as a code (h) in the order number. Motor version 0 is currently valid.)

Example order 1

Example order 1

A three-phase synchronous motor of type 8LVA22 with a nominal speed of 3000 rpm was selected for an application.

The connection should be designed as a single-cable solution (hybrid). The motor should be equipped with a holding brake, keyed shaft end and EnDat encoder.

The code (ee) for the encoder system is B1.

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

The (ff) code for the other options is S3.

The order number for the necessary motor is therefore 8LVA22.B1030S300-0.

Example order 2

Example order 2

A three-phase synchronous motor of type 8LVA33 with a nominal speed of 1500 rpm was selected for an application.

The connection should be designed as a built-in double angular connector. The motor should be equipped without a holding brake, with a smooth shaft end and resolver encoder. The motor should also be equipped with a oil seal.

The code (ee) for the encoder system is R0.

The code (nnn) for a nominal speed of 1500 rpm is 015.

The (ff) code for the other options is D6.

The order number for the necessary motor is therefore 8LVA33.R0015D600-0.

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