Rexroth VAU01.1Z-Z24/024/060-NN Industrial UPS | VAU Series

Rexroth VAU01.1Z-Z24/024/060-NN: Industrial Power Gateway for Smart Factory Data Links

The Rexroth VAU01.1Z-Z24/024/060-NN (Part No. R911170329) is a high-performance industrial uninterruptible power supply engineered by Bosch Rexroth to sustain continuous, stable 24 VDC power across mission-critical automation networks. Rated at 60 A continuous output, this VAU Series module is purpose-built to protect the integrity of real-time data flows between field devices, PLC controllers, remote I/O stations, HMI panels, SCADA gateways, servo drives, and edge computing nodes in demanding smart factory environments. When power quality degrades or grid interruptions occur, the VAU01.1Z-Z24/024/060-NN bridges the gap — ensuring that no signal is lost, no protocol handshake is interrupted, and no production data is corrupted.

In modern industrial connectivity architectures, uninterrupted DC power is not merely a utility — it is the backbone of every communication link. From SERCOS III real-time motion buses to PROFIBUS DP field networks and EtherNet/IP control backbones, every protocol layer depends on stable, conditioned 24 V supply rails. The VAU01.1Z-Z24/024/060-NN delivers exactly that: a clean, buffered, and monitored power source that keeps your automation data chain alive through transients, brownouts, and planned maintenance windows.

Compatibility & Integration Notes

Connected Automation Data Flow

In a fully integrated smart factory, the VAU01.1Z-Z24/024/060-NN sits at the heart of the power distribution layer, feeding every node in the automation data chain. Consider a typical IndraMotion MLC motion control cell: the IndraControl L45 PLC controller coordinates axis motion via SERCOS III, while IndraDrive Cs servo drives execute positioning commands in real time. Both the controller and the drives depend on a stable 24 V logic supply — precisely what the VAU01.1Z-Z24/024/060-NN provides, with buffered holdup time that prevents nuisance faults during brief grid dips.

Moving upstream, the Rexroth R-IL ETH BK DI8 DO4 2TX-PAC remote I/O coupler aggregates digital signals from proximity sensors, photoelectric barriers, and pressure transducers on the machine floor, transmitting structured data packets over EtherNet/IP to the SCADA layer. This coupler, like all field-level I/O nodes, requires a clean 24 V rail — a requirement the VAU01.1Z-Z24/024/060-NN fulfills without interruption. Similarly, Rexroth HCS02.1E drive controllers managing conveyor and spindle axes draw their logic power from the same 24 V bus, making power continuity a direct prerequisite for motion data integrity.

At the HMI layer, Rexroth VDP40.3 operator panels and IndraControl VCP20 visualization clients maintain live SCADA dashboards fed by OPC UA data streams. A power interruption at the 24 V bus would blank these displays and sever the operator’s real-time view of production KPIs, alarm states, and recipe parameters. The VAU01.1Z-Z24/024/060-NN eliminates this risk by providing seamless holdup power, keeping the HMI-to-SCADA communication link alive through any transient event.

For edge computing and remote diagnostics, Rexroth ctrlX CORE edge controllers and IoT gateway modules aggregate machine data and push it to cloud-based MES and ERP platforms. These edge nodes are particularly sensitive to power quality, as unexpected shutdowns can corrupt local data buffers and disrupt OPC UA subscriptions. The VAU01.1Z-Z24/024/060-NN provides the conditioned, buffered supply these devices require for reliable edge-to-cloud data transmission. Paired with Rexroth PSI6000 weld controllers or Rexroth NYCe 4000 multi-axis motion systems, the VAU Series UPS module ensures that every subsystem in the automation hierarchy maintains its communication state through power events.

Solving Data Isolation in Industrial Sites

One of the most persistent challenges in industrial digitalization is data isolation — the condition where field devices, controllers, and supervisory systems operate on incompatible protocols or fragmented power domains, preventing unified real-time visibility. The VAU01.1Z-Z24/024/060-NN directly addresses the power-layer root cause of data isolation by ensuring that protocol gateways, communication bridges, and network switches never lose power during production.

When a PROFIBUS DP to EtherNet/IP gateway loses its 24 V supply, the protocol translation chain breaks — SCADA loses visibility of field sensors, alarm conditions go undetected, and operators must rely on manual inspection. The VAU01.1Z-Z24/024/060-NN prevents this scenario by maintaining gateway power through grid disturbances, preserving the protocol conversion chain and keeping data flowing from field to supervisory level without interruption.

Remote monitoring and predictive maintenance applications are equally dependent on power continuity. Vibration sensors, temperature transmitters, and current monitoring modules feeding data to condition monitoring platforms require uninterrupted 24 V supply to maintain their sampling rates and communication cycles. The VAU01.1Z-Z24/024/060-NN ensures these devices remain online, enabling continuous data collection for predictive analytics and reducing unplanned downtime.

For production line transparency and OEE optimization, the VAU01.1Z-Z24/024/060-NN supports the always-on connectivity that modern MES platforms demand. By eliminating power-induced communication gaps, it enables accurate cycle time tracking, real-time reject counting, and live energy monitoring — all of which depend on unbroken data links between field devices and the supervisory layer. System expansion is equally straightforward: additional I/O nodes, communication modules, and network switches can be added to the 24 V bus without compromising the holdup capacity of the VAU01.1Z-Z24/024/060-NN, supporting phased smart factory rollouts without infrastructure redesign.

Every unit is shipped after full functional testing, with warranty terms confirmed during quotation coverage and availability confirmed by RFQ availability for shipment arranged after confirmation.

Industrial Connectivity FAQ

Q1: Does the VAU01.1Z-Z24/024/060-NN support SERCOS III and EtherNet/IP networks simultaneously?
A: The VAU01.1Z-Z24/024/060-NN is a DC power supply module, not a protocol gateway. It provides the stable 24 V power rail that SERCOS III controllers, EtherNet/IP switches, and PROFIBUS DP gateways all require to operate simultaneously. It is fully compatible with mixed-protocol automation architectures built on Rexroth IndraControl and IndraMotion platforms.

Q2: What is the communication network stability benefit of using the VAU Series UPS in a SCADA-connected plant?
A: By providing buffered holdup power during grid transients, the VAU01.1Z-Z24/024/060-NN prevents communication timeouts, protocol re-initialization cycles, and data loss events that would otherwise occur when 24 V supply rails drop below operating thresholds. This directly improves SCADA data continuity, alarm reliability, and remote diagnostics availability.

Q3: Can this unit be expanded to support additional network nodes and I/O modules?
A: Yes. The VAU01.1Z-Z24/024/060-NN’s 60 A output capacity supports a broad range of field devices, remote I/O couplers, HMI panels, and communication modules on the same 24 V bus. For larger installations, multiple VAU Series modules can be paralleled to increase total current capacity, enabling scalable smart factory expansion without replacing the core power infrastructure.

Q4: What does the warranty terms confirmed during quotation cover, and is pre-shipment testing performed?
A: Every VAU01.1Z-Z24/024/060-NN unit undergoes full functional testing prior to shipment, verifying output voltage regulation, current capacity, and holdup performance. The warranty terms confirmed during quotation covers manufacturing defects and functional failures under normal operating conditions, with global shipping available for rapid deployment to any industrial site.