RMG12.2-NN Bosch Rexroth Indramat
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MPN: R911280940
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The Bosch Rexroth Indramat RMG12.2-NN is part of the RECO Drive Modules series and features a voltage supply of 24 VDC with allowable ripple of 4.0 Vss. This module supports automatic supply switchover, supply redundancy, and comes with galvanic isolation. It includes Interbus In and Out connectors with two ports each and a protection category of IP20, measuring 214 mm high, 81 mm deep, and 41.3 mm wide.
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Product Description:
The RMG12.2-NN is a communication and power distribution module produced by Bosch Rexroth Indramat within the RECO Drive Modules series. Installed in multi-axis automation racks, the module supplies 24 V logic power and forms part of an Interbus remote I/O ring, enabling coordinated drive control and diagnostics across linked motion controllers. By combining supply conditioning with ring interface hardware, it simplifies cabinet wiring and maintains link integrity between servo inverters and centralized PLC hardware. The module is intended for systems that need both logic power distribution and fieldbus connectivity from one rack position.
Its housing measures 214 mm in height, 41.3 mm in width, and 81 mm in depth, allowing high-density mounting on the RECO backplane. A regulated input of 24 VDC feeds the internal bus bars, and the front end limits conducted noise while still delivering logic voltage downstream. The enclosure carries an IP20 rating, which is suitable for installation inside a closed control cabinet and allows access to the terminal strip. Two Interbus inputs are available through a 9-pin male connector, and two outputs exit on a 9-pin female connector. This layout lets the module sit anywhere in the ring without rewiring.
Power quality is held within 4.0 Vss ripple, preventing logic resets during rapid load changes. During line disturbances, an automatic supply switchover circuit shifts to the redundant feed without interrupting operation, and supply redundancy keeps both sources active in parallel. The 24 V rail is galvanically isolated, which removes ground loops between the drive stack and field wiring. Network continuity is further supported by a 2-ring architecture with independent ring startup, so a single open circuit does not halt the remaining segment and diagnostic access can continue on the active path.
Frequently Asked Questions about RMG12.2-NN:
Q: What is the maximum allowable ripple for the voltage supply on the RMG12.2-NN?
A: The RMG12.2-NN offers a maximum allowable ripple of 4.0 Vss on its supply line.
Q: Does the RMG12.2-NN support automatic supply switchover?
A: This module is equipped with automatic supply switchover to ensure continuous operation.
Q: Is the supply on the RMG12.2-NN galvanically isolated?
A: The RMG12.2-NN provides galvanic isolation for its supply, enhancing electrical separation and safety.
Q: What type and how many Interbus connectors are available on the RMG12.2-NN?
A: The Interbus connections on the RMG12.2-NN consist of two 9-pin male input ports and two 9-pin female output ports.
Q: What voltage supply is required to operate the RMG12.2-NN module?
A: The supply voltage required for the RMG12.2-NN is 24 VDC.
