VAM21.1-S3-NF-NN-TB-TA-VD-NN Bosch Rexroth Indramat
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MPN: R911173753
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The Bosch Rexroth Indramat VAM21.1-S3-NF-NN-TB-TA-VD-NN is part of the VAM Machine Operator Panels series and features 16 digital inputs, 16 digital outputs, and communicates via Sercos III. It has a protection rating of IP54, weighs 1940 grams, and operates on a 24 V DC supply. The panel measures 350 by 169 by 84.1 mm and includes 15 keys with 24 feed override positions.
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Product Description:
The VAM21.1-S3-NF-NN-TB-TA-VD-NN operator panel is built by Bosch Rexroth Indramat and belongs to the VAM Machine Operator Panels series. It mounts on the machine front and offers tactile keys, selector switches, and status LEDs that let personnel interact with the control without opening the cabinet. Integrated I/O electronics accept field signals, drive indicator lamps, and forward data to the higher-level controller, so the unit works as both an HMI and a distributed I/O station. This arrangement keeps routine machine commands and status indication at the operating position instead of inside the enclosure. It also groups local control functions in one panel opening, which helps maintain a clean machine face.
For real-time exchange, the panel links to the drive or PLC network over SERCOS III. It provides 16 digital inputs for limit switches or E-stop circuits, along with matching outputs for pilot lights or contactor coils. All channels use a field voltage of 24 V DC, and their combined load must stay below 3.5 A maximum. The logic section, powered by the same nominal voltage, draws only 0.3 A, so the control electronics remain isolated from load surges. A sealed front membrane carries the IP54 rating, preventing dust and splash ingress on the shop floor. Because the I/O and network functions are integrated into the panel, external devices can be connected at the operator station without a separate interface box.
The housing measures 350 × 169 × 84.1 mm and fits a mounting cutout of 330 × 151 mm in the machine door. This compact format helps the panel fit door-mounted control stations with limited depth. Power for auxiliary lamps or relays is protected by a 4 A fuse that can be replaced from the rear side. Feed override is handled by a rotary switch offering 24 feed override positions, while a separate spindle override knob supplies sixteen discrete steps read over the bus. Six switching elements, each 22.5 mm wide, accept standard contact blocks for custom functions. The aluminum and plastic enclosure weighs only 1940 g, keeping additional load on articulated operator arms to a minimum.
Frequently Asked Questions about VAM21.1-S3-NF-NN-TB-TA-VD-NN:
Q: What communication bus does the VAM21.1-S3-NF-NN-TB-TA-VD-NN operator panel support?
A: This panel uses Sercos III communication for reliable, real-time data exchange in automation networks.
Q: How many digital input connections are available on the VAM21.1-S3-NF-NN-TB-TA-VD-NN?
A: The panel features 16 digital inputs, allowing connection to a range of sensors or switches.
Q: How many feed override positions are provided by the VAM21.1-S3-NF-NN-TB-TA-VD-NN?
A: There are 24 feed override positions on this panel, enabling precise speed adjustments.
Q: What is the protection rating of the VAM21.1-S3-NF-NN-TB-TA-VD-NN panel?
A: The protection rating for this operator panel is IP54, offering protection against dust and splashing water.
Q: What are the power supply requirements for the logic and I/O on the VAM21.1-S3-NF-NN-TB-TA-VD-NN?
A: The logic and I/O power supplies are both 24 V DC, with a maximum I/O current of 3.5 A.
