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8LVA compact motor

catalog title page - 8lva approved 2015

Dynamic compact motors

The most advanced machine concepts demand excellent dynamics and performance within the smallest amount of space possible. 8LVA three-phase synchronous motors from B&R were specially developed for these applications and provide users with the highest level of freedom in machine design by delivering maximum power density.

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  • Components and Modules

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8LV - Compact servo technology

The 8LVA motor series is the perfect choice when it comes to installing servo motors in extremely tight spaces. Equipped with either a resolver or digital EnDat 2.2 interface, these motors can meet the absolute highest demands. With their low moment of inertia, motors in the 8LVA series are designed to be highly dynamic and are distinguished by their outstanding intrinsic acceleration characteristics. Additional noteworthy features include low cogging and a high overload capability. These motors have IP54 protection standard but are also available with IP65 protection. They can optionally be equipped with a holding brake. Designed for use with ACOPOSmicro servo drives, these motors offer extremely high performance and are some of the most compact on the market. 8LVA servo motors are recommended for a wide range of applications and provide an optimal price/performance ratio in the power range up to 1 kW.

Smooth surface

The special construction of the surface of the 8LVA synchronous motor series allows them to be used in applications for the food and beverage industry. Depressions where liquid can collect were deliberately avoided.

Highlights
  • Ultra compact and highly dynamic
  • High overload capability and low cogging
  • Power range up to 1 kW for 80 VDC and 320 VDC DC bus voltage
  • Multiturn encoder with the same length
  • Self-locking connector system
  • Robust, industrial connectors with optimum EMC shielding
  • 300° swivel double angular connector
  • Available with optional gearbox or direct attachment of gearbox (8LVB)
Connection type

Connection type

The innovative connection system developed for this compact servo motor series only requires a small amount of space for cabling while still providing maximum flexibility. The 300° range of rotation allows connections to be made in an extremely flexible manner.

Fast and tool-free mounting with self-locking quick-release (springtec®) ensures simple and secure connections for power and encoder cables.

Together with this universal connector system, the new 8LVA series offers either IP54 or IP65 protection (with optional oil seal) to handle a wide range of applications in all areas. This ensures secure connections even in the most adverse conditions.

The metal housing of the connector provides optimal EMC shielding for the highest level of operational safety.

Y-TEC Stecker 300° Verdrehbarkeit Rendering
Embedded parameter chip

All relevant mechanical and electrical information and data is stored in the EnDat encoder used for 8JSB /8JSQ hygiene motors. This means that the user doesn't have to configure settings on the servo drive. As soon as the encoder is connected to the servo drive and power is applied to the electronics, the motor is automatically identified. The servo drive then reads current limits and current control parameters required for optimal control of the motor from the embedded parameter chip. The only things that the user has to optimize are the speed and position controllers. The integrated commissioning environment in B&R Automation StudioTM provides all necessary support.

In addition to assistance during commissioning, routine service work is also simplified, and motors can be exchanged without having to take extra time to set parameters.

Cooling type and size

The 8LVA servo motor series is available in three different sizes (1, 2, 3). They have different dimensions (especially flange dimensions) and power ratings. 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 rating for the respective motor.

The 8LVA servo motor series is available in two different lengths. They have different power ratings with identical flange dimensions. These different lengths are indicated by a number represented by (d) in the model number.

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

B&R offers a choice between a resolver for standard applications and absolute encoder with EnDat 2.2 interface.

The ultra compact encoder with a length of less than 13 mm is multi-turn capable and has a battery backup system.

With 262,144 (218) position values per revolution and 65,536 (216) distinct revolutions, the encoder provides excellent resolution in an extremely compact design.

Load capacity of the shaft end and bearings

8LV servo motors are equipped with grooved ball bearings that are sealed on both sides and lubricated. Bearing elements must not be subjected to shocks or impacts! Incorrect handling will reduce the service life and result in damage to the bearings.

Motor options

Servo motors from the 8LV series are available in different variants depending on the customer's requirements:

  • With various nominal speeds
  • With or without an oil seal
  • With or without a holding brake
  • With a smooth or keyed shaft
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