Bosch Rexroth VAU01.1Z-Z24-024-060-NN Replacement/Upgrade Solution for IndraControl

Product Overview

Bosch Rexroth VAU01.1Z-Z24-024-060-NN R911170329: Seamless Upgrade & Replacement for IndraControl UPS Systems

The Bosch Rexroth VAU01.1Z-Z24-024-060-NN (Material No. R911170329) is a 24 VDC UPS buffer module engineered for the IndraControl platform. As legacy control cabinets age and original Rexroth UPS buffer modules approach end-of-life, plant engineers and procurement teams increasingly require a verified, drop-in replacement that preserves existing wiring, DIN-rail footprint, and system architecture without forcing a full cabinet redesign. This listing addresses exactly that need — providing a tested, in-stock unit ready for immediate dispatch from our Xiamen warehouse.

The VAU01.1Z series was designed to bridge the gap between the 24 VDC supply rail and the IndraControl controller family, including the IndraControl L25, IndraControl L45, and IndraControl L65 controller platforms. When the primary 24 VDC supply experiences a voltage dip or momentary outage, the VAU01.1Z-Z24-024-060-NN engages its internal capacitor bank to sustain the controller’s logic supply for a configurable hold-up time — typically sufficient to execute a controlled shutdown sequence, flush volatile data to non-volatile memory, and safely park servo axes driven by IndraDrive Mi or IndraDrive Cs drive systems.

Migrating from an older VAU01.1Z-Z24-024-030-NN (30 W variant) or a first-generation Rexroth UPS module? The VAU01.1Z-Z24-024-060-NN retains the same 24 VDC nominal input voltage, identical 24-pin connector pinout, and the same DIN-rail mounting profile, making it a direct mechanical and electrical substitute. No rewiring of the 24 VDC bus, no modification to the IndraControl XM22 or XM42 I/O expansion modules, and no changes to the SERCOS III or EtherCAT communication ring topology are required. The upgrade is transparent to the PLC program running on the IndraControl CPU.

For facilities running mixed Rexroth and third-party equipment — for example, a control cabinet that combines an IndraControl L45 with a Rexroth HMI IndraControl VEP operator panel, a CML65.1 motion logic controller, or legacy Indramat TDM servo drives — the VAU01.1Z-Z24-024-060-NN integrates without protocol conflicts. The module communicates its charge status and fault condition via a dedicated digital output signal that can be wired directly to a spare DI channel on the IndraControl S20 I/O system or any standard 24 VDC digital input module, enabling the PLC program to monitor UPS health and trigger graceful shutdown routines automatically.

Physical installation requires only a standard DIN-rail slot of approximately 45 mm width. The module’s screw-terminal 24 VDC input and output connectors accept standard 1.5 mm² to 2.5 mm² wire cross-sections, consistent with existing cabinet wiring practices. Cooling is convection-based; no forced-air fan is required, reducing long-term maintenance overhead in sealed or NEMA-rated enclosures. The unit’s operating temperature range of 0 °C to +55 °C covers the vast majority of industrial panel environments.

When planning a broader system modernization — for instance, replacing a discontinued Rexroth Indramat CLM 01.3 motion controller with a current-generation IndraControl platform — the VAU01.1Z-Z24-024-060-NN is a standard line item in the new cabinet BOM. It pairs directly with the IndraControl L25 power supply module, the CPS02.1 compact power supply, and the IndraControl XIO remote I/O stations to form a complete, redundant 24 VDC power architecture. Procurement teams can source the VAU01.1Z-Z24-024-060-NN alongside Rexroth R-IB IL 24 DI 16-PAC inline I/O modules and IndraDrive C HCS02 drive controllers as part of a single consolidated purchase order, reducing lead-time risk and simplifying incoming inspection.

All units shipped from TOPNLMS are subject to pre-shipment functional verification: input voltage acceptance range, output hold-up duration under rated 60 W load, charge-status signal output continuity, and visual inspection for connector integrity and housing condition. Units are packed in anti-static foam-lined cartons with desiccant to prevent moisture ingress during international transit.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful IndraControl UPS migration rarely involves a single component. In practice, engineers replacing the VAU01.1Z-Z24-024-060-NN also evaluate the surrounding power and I/O architecture. The CPS02.1 compact power supply is frequently replaced in the same service window, as it shares the same 24 VDC bus and its capacitors degrade on a similar timeline. The IndraControl S20 digital input/output modules — specifically the R-IB IL 24 DI 8/HD-PAC and R-IB IL 24 DO 8/HD-PAC variants — are often refreshed simultaneously to eliminate intermittent I/O faults that can mask UPS-related voltage anomalies.

For cabinets that include a Rexroth IndraControl VEP 30.3 or VEP 40.3 HMI panel, the UPS buffer module upgrade is an opportunity to verify that the HMI’s 24 VDC feed is also protected. The IndraDrive Mi KSM02 integrated servo motor-drive units, which draw their logic supply from the same 24 VDC rail, benefit directly from the increased 60 W hold-up capacity of the VAU01.1Z-Z24-024-060-NN compared to the earlier 30 W variant. Engineers migrating from Indramat TDM 1.2 or TDM 1.3 servo drives to current IndraDrive C HCS02 drives will find that the new UPS module’s higher output power accommodates the increased logic-supply demand of modern drive firmware during controlled deceleration and safe-torque-off sequences.

Communication infrastructure should also be reviewed: if the cabinet uses a Rexroth SERCOS III master card or an EtherCAT master module installed in the IndraControl backplane, these cards must remain powered during the UPS hold-up interval to execute the network shutdown handshake. The VAU01.1Z-Z24-024-060-NN’s 60 W capacity is sized to cover the combined logic load of the controller CPU, communication master card, and up to two IndraControl XM22 I/O expansion modules simultaneously — a configuration that the 30 W predecessor could not reliably sustain.

Retrofit Guidance FAQ

Q: Do I need to modify my cabinet wiring when replacing the old UPS module with the VAU01.1Z-Z24-024-060-NN?
A: No. The connector pinout and terminal assignments are identical to the VAU01.1Z-Z24-024-030-NN and other VAU01.1Z series variants. Existing 24 VDC input and output wiring can be reconnected directly without modification.

Q: Will my IndraControl PLC program require changes?
A: No program changes are required. The UPS status digital output signal uses the same 24 VDC logic level and the same signal polarity as the predecessor module. Existing ladder logic or Structured Text routines that monitor UPS status will function without modification.

Q: Is the VAU01.1Z-Z24-024-060-NN compatible with SERCOS III and EtherCAT communication rings?
A: Yes. The module provides 24 VDC logic power to the IndraControl backplane, which hosts the communication master card. It has no direct interaction with the SERCOS III or EtherCAT protocol stack and is fully transparent to both communication architectures.

Q: What is the physical space requirement in the control cabinet?
A: The module requires approximately 45 mm of DIN-rail width and standard cabinet depth of 150 mm or greater. It is dimensionally identical to the VAU01.1Z-Z24-024-030-NN, so no cabinet layout changes are needed.

Q: How do I verify the module is functioning correctly after installation?
A: After installation, apply 24 VDC input power and confirm the green READY LED illuminates within 30 seconds (capacitor charge time). Simulate a supply interruption by briefly disconnecting the input; the output should remain stable for the rated hold-up duration. Monitor the digital status output at the designated DI channel on the IndraControl S20 I/O system to confirm the PLC receives the correct UPS-OK signal.

Q: Can this module replace units from other manufacturers used in Rexroth cabinets?
A: The VAU01.1Z-Z24-024-060-NN is a Bosch Rexroth OEM part. Third-party UPS modules installed in IndraControl cabinets may differ in connector pinout, status signal polarity, and hold-up characteristics. We recommend verifying connector compatibility before installation if replacing a non-Rexroth unit.

Warranty Assurance

Every VAU01.1Z-Z24-024-060-NN (R911170329) unit shipped by TOPNLMS is covered by a 12-month replacement warranty from the date of delivery. Our pre-shipment test protocol includes: input voltage acceptance verification across the full 20–30 VDC tolerance range; output hold-up duration test under 60 W resistive load; charge-status digital output signal continuity check; visual and mechanical inspection of all connectors, housing latches, and DIN-rail clip.

Units that fail within the warranty period are eligible for priority replacement dispatch, typically within 2 business days of fault confirmation. Our after-sales team is reachable at [email protected] or +86 18359293191 for technical pre-sales consultation, warranty claims, and expedited procurement support. We maintain buffer stock of VAU01.1Z series modules to support emergency replacement orders with same-day processing for orders confirmed before 14:00 CST.

For volume procurement — system integrators, OEM panel builders, or MRO distributors requiring 5 or more units — please contact us directly for lead-time confirmation, consolidated shipping options, and volume pricing. We ship globally via DHL Express, FedEx International Priority, and UPS Worldwide Expedited, with full export documentation including commercial invoice, packing list, and certificate of origin.