BTA20.4 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat BTA20.4 is a machine control board from the BTA20 Machine Control Boards series, with a weight of 2.1 kilograms. It provides a 24 V output current of 200 mA and has an IP65 rated front panel. The board supports up to four devices on the Bt Bus with a maximum length of 50 meters.
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Product Description:
The BTA20.4 machine control board is manufactured by Bosch Rexroth Indramat and belongs to the BTA20 Machine Control Boards series. It serves as a decentralized interface that distributes power and fieldbus signals to drive modules and sensor clusters inside an industrial cell, allowing drives, sensors, and actuators to be connected to higher-level motion systems with minimal wiring and panel space. This arrangement helps central control hardware exchange signals with distributed machine sections while keeping cabinet layouts organized.
The board supplies a 24 V auxiliary rail that can deliver up to 200 mA, which is adequate for powering light curtains, proximity switches, or encoder reference tracks housed in the same cabinet. Logic circuitry is driven from a stabilized backplane that holds at 5 V, while peripheral loads attached to the bus may draw a maximum of 50 mA without exceeding the internal regulator limits. A proprietary Bt bus segments machine sections, and the controller can address up to 4 devices on this bus while maintaining deterministic telegrams along cable runs that extend as far as 50 m. For fast exchange of control bits, each node is allocated 6 bytes of memory so command words, feedback flags, and checksum fields fit within a single cycle. Aggregate consumption for the card is limited to 1.0 A at the main supply, which helps the board remain suitable for compact distributed control assemblies.
The card occupies 375 mm of rack width and 137 mm of rack height, while its printed backplate adds an overall depth of 119 mm and raises the total height to 169 mm. Installation should allow an overall width of 407 mm so that side latches and field wiring clear adjacent modules. Despite the generous footprint, the board weighs only 2.1 kg, which makes handling easier during mounting and service access. Peak dissipation is capped at 18 W, helping thermal loading remain modest inside enclosed machine spaces. The sealed aluminum front panel has an ingress rating of IP65, which helps keep dust and coolant spray away from the connectors.
Frequently Asked Questions about BTA20.4:
Q: How many devices can be connected to the Bt Bus of the BTA20.4 control board?
A: The BTA20.4 supports connecting up to 4 devices on its Bt Bus interface.
Q: What kind of front panel protection does the BTA20.4 board provide?
A: This board offers front panel protection rated at IP 65, making it resistant to dust and low-pressure water jets.
Q: What is the maximum power consumption of the BTA20.4 board?
A: The maximum power consumption of the BTA20.4 machine control board is 18 W.
Q: What is the maximum Bt Bus length allowed for the BTA20.4?
A: The Bt Bus of the BTA20.4 has a maximum length limit of 50 meters.
Q: What is the 24 V output current rating for the BTA20.4 control board?
A: The BTA20.4 features a 24 V output current rated at 200 mA for external devices.
