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Selecting options and determining order code 8LVB

Bestellschlüssel 8LVB DE

Overview of motor-gearbox combinations and gear ratios
  •  
    8GM40
    8GM50
    Gearbox size
    40
    60
    80
    50
    70
    90
    Motor
          
    8LVB13 n = 1500 rpm
    Yes
    -
    -
    Yes
    -
    -
    8LVB13 n = 1500 rpm with brake
    Yes
    -
    -
    Yes
    -
    -
    8LVB13 n = 3000 rpm
    Yes
    -
    -
    Yes
    -
    -
    8LVB13 n = 3000 rpm with brake
    Yes
    -
    -
    Yes
    -
    -
           
    8LVB22 n = 1500 rpm
    -
    Yes
    -
    -
    Yes
    -
    8LVB22 n = 1500 rpm with brake
    -
    Yes
    -
    -
    Yes
    -
    8LVB22 n = 3000 rpm
    -
    Yes
    -
    -
    Yes
    -
    8LVB22 n = 3000 rpm with brake
    -
    Yes
    -
    -
    Yes
    -
           
    8LVB23 n = 1500 rpm
    -
    Yes
    -
    -
    Yes
    -
    8LVB23 n = 1500 rpm with brake
    -
    Yes
    -
    -
    Yes
    -
    8LVB23 n = 3000 rpm
    -
    Yes
    -
    -
    Yes
    -
    8LVB23 n = 3000 rpm with brake
    -
    Yes
    -
    -
    Yes
    -
           
    8LVB33 n = 1500 rpm
    -
    -
    Yes
    -
    -
    Yes
    8LVB33 n = 1500 rpm with brake
    -
    -
    Yes
    -
    -
    Yes
    8LVB33 n = 2100 rpm
    -
    -
    Yes
    -
    -
    Yes
    8LVB33 n = 2100 rpm with brake
    -
    -
    Yes
    -
    -
    Yes

Available ratios (iii)

  • Planetary gearboxes for direct motor mounting – Order code (iii)
    Gearbox series
    1-stage
    2-stage
    8GM40
    003, 004, 005, 008, 010
    009, 012, 015, 016, 020, 025, 032, 040, 064, 100
    8GM50
    003, 004, 005, 008, 010
    009, 012, 015, 016, 020, 025, 032, 040, 064, 100
Cooling / Construction type

The 8LVB motor/gearbox combinations are self-cooling and extremely compact due to motor/gearbox direct mounting.

Valid code: B

Size (c)

The 8LVB motor/gearbox combination is available in three different sizes (1, 2, 3). They have different dimensions and power data. These different sizes are indicated by a number represented by (c) in the model number. The larger the number, the larger the flange dimensions and power data for the respective motor.

  • Cooling / Construction type
    Available sizes
    1
    2
    3
    B
    Yes
    Yes
    Yes

Valid codes: 13, 22, 23, 33

Length (d)

The motor integrated in the 8LVB motor/gearbox combination is available in 2 different lengths. They have different power data with identical flange dimensions. The various lengths are differentiated by a number (d) in the order key.

  • Length
    Available sizes
    1
    2
    3
    2
    ---
    Yes
    ---
    3
    Yes
    Yes
    Yes

Valid codes: 13, 22, 23, 33

Encoder system (ee)

Encoders are listed as part of the model number in the form of a 2-digit code (ee).

  • Size/Length
    Code for order key (ee) / Availability of motor encoders
    R0
    B1
    B8
    B9
    8LVx13
    Yes
    Yes
    ---
    ---
    8LVx22
    Yes
    Yes
    Yes
    Yes
    8LVx23
    Yes
    Yes
    Yes
    Yes
    8LVx33
    Yes
    Yes
    Yes
    Yes

General

Motors in the 8LV series are available with EnDat encoders as well as resolvers. The encoder system is listed as part of the model number in the form of a 2-digit code (ee).

A resolver is an analog encoder system. Resolvers are particularly robust against vibrations and high operating temperatures. A disadvantage is the low accuracy of 6-10 arcmin. Furthermore, no multi-turn variant with resolvers is possible.

Digital encoders use a serial transfer protocol. This protocol is called EnDat. The EnDat protocol is a developed standard that incorporates the advantages of absolute and incremental position measurement and also offers a read/write parameter memory in the encoder. The embedded parameter chip is stored by B&R in this encoder memory. This data and the B&R ACOPOS systems form a plug-and-play drive solution. Absolute positioning can be used within a revolution with the single-turn variants. A homing procedure is not required because of the absolute position measurement. For applications where the motor covers several revolutions for positioning, a multi-turn encoder that can save up to 65535 revolutions can be used. A solution with a single-turn encoder variant with a homing procedure is also possible.

Resolver

RE-15-1-J04 resolvers are used in the motors.

  •  
    Encoder type / Order code (ee)
    R0
    Precision
    10 angular minutes
    Vibration during operation
    10 < f ≤ 500 Hz
    ≤500 m/s²
    Shock during operation
    Duration 11 ms
    ≤1,000 m/s²

EnDat 2.2 encoder

For the advanced, fully digital EnDat 2.2 protocol, the positions are generated directly in the encoder and communicated serially with the drive system. This transfer is very robust in relation to disturbances and is even certified for safety applications.

Digital drive systems and position control loops require fast and highly secure transfer of data obtained from position measuring instruments. In addition, other data such as drive-specific characteristics, correction tables, etc. should also be available. To ensure a high level of system security, measuring instruments must be integrated in routines for detecting errors and be able to perform diagnostics.

The EnDat interface from HEIDENHAIN is a digital, bidirectional interface for measuring instruments. It is able to output position values from incremental and absolute measuring instruments and can also read and update information on the measuring instrument or store new data there. Because it relies on serial data transfer, only 4 signal lines are needed. Data is transferred synchronously to the clock signal defined by the subsequent electronics. The type of transfer used (e.g. for position values, parameters, diagnostics, etc.) is selected using mode commands sent to the measuring instrument by the subsequent electronics.

  •  
    Encoder type / Order code (ee)
    B1
    B8
    B9
    Operating principle
    Inductive
    EnDat protocol
    EnDat 2.2
    Single-turn / Multi-turn
    M
    S
    M
    Battery-backed
    Yes
    ---
    Revolutions
    65536
    1
    4096
    Resolution
    [bits single-turn / bits multi-turn]
    18/16
    19/0
    19/12
    Precision ['']
    120
    Switching frequency ≥ [kHz]
    Digital pos. in the encoder
    Vibration during operation - Stator
    Max [m/s2]
    300
    400
    Vibration during operation - Rotor
    Max [m/s2]
    300
    600
    Max. shock during operation [m/s2]
    1000
    2000
    Manufacturer's product ID
    EBI 1135
    ECI 1119 FS
    EQI 1131 FS
    Manufacturer's website
    www.heidenhain.de

Valid codes: R0, B1, B8, B9

Available ratios (iii)
  • Planetary gearboxes for direct motor mounting – Order code (iii)
    Gearbox series
    1-stage
    2-stage
    8GM40
    003, 004, 005, 008, 010
    009, 012, 015, 016, 020, 025, 032, 040, 064, 100
    8GM50
    003, 004, 005, 008, 010
    009, 012, 015, 016, 020, 025, 032, 040, 064, 100

Valid codes: 003, 004...100, see table

Output shaft (jj)

The motor/gearbox combinations from the 8LVB series can be delivered with a smooth or keyed shaft end.

  • 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.
     
    8LVB_Strichzeichnungen_Wellenende_glatt_3D
  • 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 of the gear units of the 8LVB series conform to keyway form N1 in accordance with DIN 6885-1. The end of the shaft has a threaded center hole that can be used to mount machine actuators with shaft end cover plates.
     
    8LVB_Strichzeichnungen_Wellenende_Passfeder_3D

Valid codes: see table "Determining the order code for device options"

Holding brake (jj)

Motors in the 8LV series can be delivered with a holding brake. It is used to hold the motor shaft when no power is applied to the motor.

  •  
    Motor size
    1
    2
    3
    Holding torque MBr [Nm]
    0.35
    2.2
    3.2
    Connected load POn [W]
    8
    8.4
    13.4
    Maximum speed nmax [rpm]
    6000
    12000
    12000
    Supply current IOn [A]
    0.33
    0.35
    0.56
    Supply voltage UOn [V]
    24 VDC +6% / -10%
    24 VDC +6% / -10%
    24 VDC +6% / -10%
    Moment of inertia JBr [kgcm²]
    0.013
    0.07
    0.38
    Mass mBr [kg]
    0.1
    0.16
    0.29

Valid codes: see table "Determining the order code for device options"

Determining the order code for device options (jj)

The code(jj) with the corresponding device options can be found in the following table:

  • Gearbox series 8GM40
    Motor option
    Holding brake
    Output
    Shaft end
    Code for order key (jj)
     
    ---
    Smooth
    S0
     
    ---
    With key
    S1
     
    Yes
    Smooth
    S4
     
    Yes
    With key
    S5
  • Gearbox series 8GM50
    Motor option
    Holding brake
    Output
    Shaft end
    Code for order key (jj)
     
    ---
    Smooth
    L0
     
    ---
    With key
    L1
     
    Yes
    Smooth
    L4
     
    Yes
    With key
    L5
Nominal speed / Connection type (nn)

The first position (nn) of the two-position code (nn) is the nominal speed. The second position (nn) is the connection type.

The nominal speed (nn) of the motor is specified as the speed class in the order key. Speed class is broken up into steps of 500 [rpm] and begins at 80 VDC operation at A = 500 [rpm]. (Deviations include nominal speed 950 [rpm] as class B = 1000 [rpm] and nominal speed 2100 [rpm] as class D = 2000 [rpm].)

The connection type (nn) of the motor in represented in the order key with nW for double angular built-in connector and nS for single-cable solution (hybrid).

  •  
    8LVx_ZKL_nW
    Double angular built-in connector (nW)
    8LVx_EKL_nS
    Single-cable solution (nS)
     

Available combinations

  • Size/Length
    Available nominal speeds nN [rpm] at 80 VDC operation
    1500
    2100
    3000
    Code for nominal speed class (nn)
    (code for nominal speed class and connection type)
    Cn
    (CW/CS)
    Dn
    (DW/DS)
    Fn
    (FW/FS)
    8LVB131)
    Yes
    ---
    Yes
    8LVB22
    Yes
    ---
    Yes
    8LVB23
    Yes
    ---
    Yes
    8LVB33
    Yes
    Yes
    ---
  • 1)
    Not all motor encoders are available for this size. See the motor encoder availability table.

Example: The 2-position code (nn) for nominal speed 1500 nN [rpm] is either CW or CS for the double angular built-in connector or single-cable solution (hybrid), respectively.

Special options (ll)

No special options are currently offered for 8LVB gear motors. Valid code: 00

Example order 1

A servo gear motor of type 8LVB 13 with a rated speed of 1500 rpm was selected for an application. The motor should be equipped with a holding brake and an EnDat encoder (B1). The gearbox should have a gear ratio of i = 010 and the shaft end should have a key. The connection type should be a double angular built-in connector.

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

The code for the gear ratio (iii) is 010.

The code for standard gearboxes with a keyed output shaft is S5.

The code for the motor brake here is 5 (already included in S5!).

The code for nominal speed (nn) 1500 rpm is C.

The code for the double angular built-in connector connection type (nn) is W.

The model number for the required motor/gearbox combination is 8LVB13.B1010S5CW00.

Example order 2

A servo gear motor of type 8LVB 33 with a nominal speed of 2100 rpm was selected for an application. The motor should not be equipped with a holding brake. It should be equipped with EnDat encoder B8. The gearbox should have a gear ratio of i = 020 and a smooth shaft end. Gearbox 8GM50 was selected. The connection type should be a single-cable solution (hybrid).

The code for the encoder system (ee) is B8.

The code for the gear ratio (iii) is 020.

The code for gearbox 8GM50 with a smooth output shaft is L0.

The code for the option without a motor brake is 0 here (already included in L0!).

The code for the nominal speed (nn) 2100 rpm is D (2100 rpm is assigned to speed class D = 2000 rpm).

The code for the angled single-cable solution (hybrid) connection type (nn) is S.

The model number for the required motor/gearbox combination is 8LVB33.R0020L0DS00.

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