BTA20.3-NB-LF-KA-BS Bosch Rexroth Indramat
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MPN: R911286378
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The Bosch Rexroth Indramat BTA20.3-NB-LF-KA-BS is part of the BTA20 Machine Control Boards series and uses INTERBUS-S and BT-BUS communication buses. This station panel features 8 digital inputs, 8 digital outputs with a per-output current of 200 mA, and eight illuminated white keys. The front panel is made of varnished aluminum with a chemical-resistant polyester overlay and provides IP65 front protection.
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Product Description:
The BTA20.3-NB-LF-KA-BS control board is produced by Bosch Rexroth Indramat within the BTA20 Machine Control Boards series. This station panel is intended to mount on machine fronts and offer local command, status display, and fieldbus links that integrate the machine cycle with higher-level PLCs in automated production lines. Its layout consolidates pushbutton functions and communication hardware on a single aluminum faceplate.
Field communication is provided through the INTERBUS-S / BT-BUS interface, enabling deterministic exchange of I/O data between the panel and the controller. The board presents 8 digital inputs for sensor acceptance and 8 digital outputs that can each source up to 200 mA, allowing direct actuation of indicator lamps or small solenoids without external relays. Front sealing reaches IP65, so particulate or low-pressure water jets do not compromise the electronics when the unit is correctly gasketed to the cabinet door. A chemical-resistant polyester foil overlay protects legends from oils and cleaning fluids, while the varnished aluminum subpanel adds mechanical stiffness. Additional drill holes around the emergency-stop area simplify fitting of a discrete E-stop module to suit machine safety layouts.
Operator interaction centers on 8 illuminated white keys that are wired to the LF user element matrix for clear feedback during shift work. A customized key-button selector module lets OEMs assign mode or recipe functions without reworking the board traces. For serial diagnostics, the rear edge carries 1 RS232 input, plus separate differential channels consisting of 1 RS422 input and 1 RS422 output. These links support service communication and peripheral expansion without using the fieldbus connection. The station panel format places connectors on one side, which helps keep harness routing orderly inside the enclosure.
