Schneider XSAV11373 Retrofit-Ready Sensor for XSAV Systems: Compatible Modernization & Smooth Legacy Upgrade
The Schneider Electric XSAV11373 is a Telemecanique-series inductive proximity sensor engineered for reliable detection in demanding industrial environments. As legacy XSAV-series sensors approach end-of-life or become increasingly difficult to source, the XSAV11373 serves as a verified retrofit-ready replacement that preserves existing wiring configurations, mounting dimensions, and PLC input logic — minimizing engineering rework and unplanned downtime during system modernization.
Whether you are upgrading a Modicon M340 or Modicon Premium-based control system, replacing worn sensors on a Telemecanique TSX-series panel, or migrating I/O signals to a newer Schneider Electric Modicon M580 platform, the XSAV11373 integrates directly into your existing control architecture without requiring changes to ladder logic or HMI screen configurations. Its standardized M12 connector interface and 3-wire PNP output are compatible with the XSAV11801, XSAV11801, XSAV12373, and XSAV11801 family, making cross-referencing straightforward for maintenance engineers.
For facilities running Schneider Electric Advantys STB distributed I/O islands or Preventa XPS safety relay modules, the XSAV11373 maintains the same signal characteristics required for safe-state detection loops. Engineers replacing sensors in control cabinets equipped with Zelio Logic smart relays or Altivar ATV312 variable speed drives will find that the XSAV11373’s output timing and switching frequency remain within the input filter specifications of these downstream devices.
Upgrade Compatibility Table
| Parameter | XSAV11373 (This Unit) | Retrofit Notes |
|---|---|---|
| Output Type | 3-wire PNP NO | Compatible with standard DI modules on Modicon M340/M580 |
| Supply Voltage | 12–48 VDC | Verify cabinet PSU output; Phaseo ABL8 24VDC units are compatible |
| Sensing Distance | 8 mm (nominal) | Confirm target gap; adjust bracket if replacing XSAV12373 (10 mm) |
| Connector | M12 4-pin | Direct swap with existing XSAV-series M12 cordsets |
| Mounting Thread | M30 × 1.5 | No bracket modification required for standard XSAV mounting holes |
| Communication | Discrete digital signal | No protocol migration needed; signal maps directly to existing I/O address |
| Replacement Scope | XSAV11373, XSAV11801 cross-ref | Verify OEM cross-reference list before installation |
| Warranty | 12 Months | Covered from date of shipment; includes functional test certificate |
Retrofit Planning for Existing Automation Systems
A successful XSAV11373 retrofit begins with a thorough audit of the existing control cabinet. Before removing the legacy sensor, document the terminal wiring using the original Telemecanique XSAV wiring diagram and confirm the I/O module address assigned in the PLC program. On Modicon M340 systems, this typically involves verifying the BMX DDI 1602 or BMX DDM 16022 digital input module channel assignment in Unity Pro or EcoStruxure Control Expert. On older TSX Micro or TSX Premium platforms, confirm the TSX DEY 16D2 input module rack slot and channel number.
Power supply capacity is a critical pre-installation check. The XSAV11373 draws a maximum of 15 mA at 24 VDC. If the cabinet uses a Phaseo ABL8REM24030 or ABL7RE2402 power supply, verify that the total sensor load on the 24 VDC rail does not exceed the rated output current after adding this unit. For cabinets with multiple XSAV-series sensors on a shared rail, a current budget calculation is recommended before commissioning.
Terminal block wiring should follow the standard Brown (L+), Blue (0V), Black (Output) convention. If the existing installation uses Weidmüller or Phoenix Contact terminal blocks with pre-labeled ferrules, the XSAV11373’s M12 pigtail cordset can be terminated directly without rewiring the cabinet backbone. For installations using Schneider Electric XZCP1141L2 or XZCP1141L5 pre-wired cordsets, the XSAV11373 is plug-compatible.
After physical installation, perform a functional verification using the PLC’s online diagnostic mode. In EcoStruxure Control Expert, monitor the corresponding %I input bit in real time while manually actuating the sensor target. Confirm that the HMI faceplate — whether running on a Magelis HMIGTO or HMISCU panel — reflects the correct sensor state without requiring screen object remapping. If the original program uses derived function blocks (DFB) for sensor debounce or fault detection, verify that the XSAV11373’s switching frequency (1.5 kHz typical) is within the DFB’s configured filter window.
For systems integrating Preventa XPS safety relays or Harmony XPSUAF safety modules, confirm that the XSAV11373’s output meets the required OSSD signal characteristics if used in a safety-rated detection loop. In non-safety standard applications, the sensor’s discrete PNP output connects directly to the safety relay’s monitored input channel without additional signal conditioning.
Downtime Control During System Migration
Minimizing production interruption during an XSAV11373 swap requires a structured hot-swap protocol. Begin by placing the affected PLC program section in manual override mode using EcoStruxure Control Expert’s animation table, forcing the relevant %I input to its last known good state. This preserves the downstream control logic — including any Altivar drive run/stop commands or Modicon output coil states — while the physical sensor is being replaced.
The XSAV11373’s M12 quick-disconnect interface allows the sensor body to be removed and replaced in under two minutes without disturbing cabinet wiring. Once the new sensor is seated and the cordset reconnected, release the forced input value and confirm live signal feedback before returning the section to automatic mode. This approach eliminates the need for a full program download or PLC restart, keeping the rest of the production line operational throughout the replacement.
For multi-sensor replacement campaigns — such as a full XSAV-series refresh across a conveyor system or packaging line — pre-stage all XSAV11373 units with pre-wired XZCP cordsets and pre-labeled terminal ferrules. Batch replacements during a scheduled maintenance window, working section by section with a two-person team: one engineer at the cabinet forcing and releasing I/O, one technician on the floor swapping sensors. This method consistently achieves full sensor fleet replacement within a single 4-hour maintenance window with zero unplanned downtime.
All units are pre-tested prior to shipment and include a functional test certificate. Stock is maintained for immediate dispatch, supporting urgent breakdown recovery scenarios where next-day delivery is critical to resuming production.
Retrofit Support FAQ
Q: Is the XSAV11373 a direct drop-in replacement for the original XSAV11373 and related XSAV-series sensors?
A: Yes. The XSAV11373 maintains identical M30 thread dimensions, M12 connector pinout, and PNP NO output characteristics. It is a verified drop-in replacement for the original Telemecanique XSAV11373 and is cross-referenced against XSAV11801 in standard OEM replacement guides. Always confirm the sensing distance specification matches your application gap before installation.
Q: What commissioning steps are required after installation?
A: After physical installation, verify the I/O address mapping in your PLC program (Unity Pro / EcoStruxure Control Expert), confirm the %I input bit toggles correctly during target actuation, and check HMI screen objects reflect the correct sensor state. No program changes are required if replacing a like-for-like XSAV11373. For cross-series replacements, verify sensing distance and output timing against the original sensor datasheet.
Q: Can the XSAV11373 be used in safety-rated detection loops?
A: The standard XSAV11373 is a non-safety-rated discrete sensor. For safety applications involving Preventa XPS relays or IEC 62061 / ISO 13849 compliance requirements, consult the Schneider Electric safety sensor catalog for XSAV-series variants with OSSD outputs. For standard automation applications, the XSAV11373 is fully suitable.
Q: What warranty and pre-shipment testing does this unit include?
A: Every XSAV11373 unit is functionally tested prior to dispatch and ships with a 12-month warranty from the date of shipment. The warranty covers manufacturing defects and functional failures under normal operating conditions. Expedited shipping options are available for breakdown recovery orders requiring next-day delivery.
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