BTA20.3-NC-DB-VB-BS Bosch Rexroth Indramat
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MPN: R911291782
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The Bosch Rexroth Indramat BTA20.3-NC-DB-VB-BS is a machine control board from the BTA20 Machine Control Boards series. It features 40 addressable inputs, 24 addressable outputs, and front protection rated at IP65. The board supports a remote bus rate of 500 kbaud and measures 407 by 169 by 119 millimeters overall.
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Product Description:
The BTA20.3-NC-DB-VB-BS control board belongs to the BTA20 Machine Control Boards series produced by Bosch Rexroth Indramat. It serves as an interface layer between field devices and higher-level motion controllers, translating sensor states and actuator commands into a format used by the Indramat drive platform. Interbus integration and an Id code of 3 allow the board to link distributed stations to the central PLC across the machine, keeping signal exchange organized between remote devices and the main control system. Two onboard override switches also allow selected automatic sequences to be bypassed during manual checks or troubleshooting.
This model offers 40 addressable inputs and 24 addressable outputs, so complex station logic can be handled locally without expanding external I/O racks. Eight external 24 V inputs and eight external 24 V outputs simplify wiring to light curtains, limit switches, or indicator lamps that share the same low-voltage supply. Process data are exchanged across a width of 48 bits, giving the controller simultaneous access to discrete states and diagnostic flags without splitting them across multiple telegrams. Communication to remote nodes travels over Interbus at 500 kbaud, and one RS422 input plus one RS422 output provide a point-to-point maintenance channel for direct status exchange. The digital outputs can source up to 200 mA per channel, which is suitable for relays or optically isolated loads.
Two usable enabling circuits provide hard-wired safety interlocks that must be closed before motion commands are accepted. The bus output section supplies a maximum of 50 mA to power attached sensors on the ribbon, and the front panel carries an IP65 rating that helps protect the electronics against dust and low-pressure water jets when mounted in an operator door or similar enclosure opening. Overall enclosure dimensions are 407 x 169 x 119 mm, which gives the assembly a narrow profile for door or panel installation. The mounting footprint is limited to 375 x 138 x 119 mm, helping the board fit standard cabinet layouts without requiring deep standoffs or unusually large clearances.
Frequently Asked Questions about BTA20.3-NC-DB-VB-BS:
Q: How many addressable inputs are available on the BTA20.3-NC-DB-VB-BS control board?
A: The BTA20.3-NC-DB-VB-BS board is equipped with 40 addressable inputs for connecting various sensors or control devices.
Q: How many addressable outputs does the BTA20.3-NC-DB-VB-BS feature?
A: This model provides 24 addressable outputs to manage external actuators or relays in automation applications.
Q: What is the maximum bus output current supported by the BTA20.3-NC-DB-VB-BS?
A: The BTA20.3-NC-DB-VB-BS offers a maximum bus output current of 50 mA.
Q: What level of front protection does the BTA20.3-NC-DB-VB-BS board provide?
A: With front protection rated at IP65, the BTA20.3-NC-DB-VB-BS is shielded against dust and low-pressure water jets.
Q: What is the remote bus communication rate of the BTA20.3-NC-DB-VB-BS?
A: The remote bus rate for this control board is 500 kbaud, ensuring fast data transfer on the network.
