BTA20.3-NA-BF-VB-BS

MPN: R911287570

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The BTA20.3-NA-BF-VB-BS is a ball transfer unit featuring a main ball diameter of 20.3 mm and a nickel-plated finish for enhanced durability. Manufactured by Bosch Rexroth Indramat as part of the BTA20 Machine Control Boards series, it uses carbon steel balls and a nickel-plated steel body. This unit includes a flange mount and debris-resisting felt seal.

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Product Description:

The BTA20.3-NA-BF-VB-BS Machine Control Board integrates control and communication interfaces within a durable housing. The unit features a lacquered aluminum front and is finished in light grey (RAL 7035). It supports addressable I/Os and enables flexible system integration. The design focuses on compact size and efficient thermal output.

The BTA20.3-NA-BF-VB-BS board supports RS232 communication converted to RS422/485. This allows secure data transmission across connected devices. It includes 8 digital inputs and 8 digital outputs. The system operates on INTERBUS-S and BT-BUS. These bus systems provide fast and stable data communication. Its thermal output is limited to 10 W which ensures low heat generation during use. The front panel of this board is rated IP65 for protection against dust and water. The main housing has a lower IP20 rating that is suitable for controlled environments. The exterior design includes a lacquered aluminum front. The device dimensions are 407 mm in width, 169 mm in height and 100 mm in depth. These compact measurements allow easy panel or cabinet integration. The unit's weight is approximately 2.1 kg. This makes it manageable for installation and servicing. The digital I/Os of this model are addressable that offers flexibility in system configuration and control logic implementation. The input/output mapping enhances automation versatility.

This Bosch BTA20.3-NA-BF-VB-BS machine control board is integrated with an Emergency Stop safety module designed to ensure immediate and reliable shutdown of machine operations in the event of an emergency. The E-Stop system includes a Normally Closed (N/C) contact wired in series within the safety circuit loop. This configuration ensures that opening the N/C contact such as when the key is turned or the E-Stop is pressed interrupts the loop.

Bolt Hole Centers
41 mm
Bolt Hole Diameter
5.5 mm
Finish
Nickel-plated
Flange Thickness
2.5 mm
Housing Diameter
34 mm
Main Ball Diameter
20.3 mm
Material (ball)
Carbon Steel
Material (body)
Nickel-plated Steel
Mounting Type
Flange Mount
Overall Height
22.6 mm
Sealing
Debris-resisting Felt Seal (BS)
Type
Ball Transfer Unit
Working Temperature Range
-30°C to +70°C
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Frequently Asked Questions about BTA20.3-NA-BF-VB-BS:

Q: How does the BTA20.3-NA-BF-VB-BS maintain safe machine shutdowns during emergencies?

A: The BTA20.3-NA-BF-VB-BS uses an integrated Emergency Stop module with a Normally Closed contact. This setup ensures the loop breaks immediately when triggered for reliable machine shutdown.

Q: Can the BTA20.3-NA-BF-VB-BS support secure communication across multiple devices?

A: Yes, the board converts RS232 to RS422 or RS485 for stable data transmission. This enables secure device communication in complex automation environments using standard protocols.

Q: What makes the BTA20.3-NA-BF-VB-BS model suitable for panel installations?

A: Its compact size of 407 mm by 169 mm by 100 mm supports easy integration. The 2.1 kg weight simplifies mounting and servicing inside cabinets or control panels.

Q: Will the BTA20.3-NA-BF-VB-BS machine control board manage high data transfer speeds?

A: It supports INTERBUS-S and BT-BUS systems for fast and stable communication. These bus types optimize control performance in industrial automation systems.

Q: How does the I/O system in the BTA20.3-NA-BF-VB-BS offer configuration flexibility?

A: The board features 8 digital inputs and 8 digital outputs that are addressable. This enhances system mapping and control logic flexibility in automation tasks.


Internal Product Review

  • ‘‘The BTA20.3-NA-BF-VB-BS machine control board ensures fast communication via INTERBUS-S and BT-BUS. It features a compact 407×169×100 mm design and supports addressable I/Os. The integrated Emergency Stop module enhances safety. The lacquered aluminum front with IP65 rating ensures durability in demanding environments. ’’

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