Norgren VMS-2110-24 Vacuum Management System – VMS Series

Norgren VMS-2110-24: Integrated Vacuum Management Module for High-Cycle Industrial Automation

The Norgren VMS-2110-24 is a self-contained vacuum management module operating on a 24 V DC supply, designed to consolidate vacuum generation, pressure monitoring, solenoid switching, and blow-off actuation into a single field-mountable assembly. Within a control loop, this module occupies the actuator-side interface between the PLC digital output stage and the end-effector vacuum circuit, eliminating the discrete component count that would otherwise require separate ejectors, pressure switches, solenoid valves, and blow-off nozzles. The result is a deterministic, diagnostically transparent vacuum node that reduces both panel footprint and inter-component wiring by a measurable margin.

In pick-and-place cells, the VMS-2110-24 receives a 24 V DC enable signal from the PLC output module, energizes the internal ejector solenoid, and begins vacuum build within the downstream circuit. The integrated vacuum switch closes at a user-defined threshold — typically –60 kPa to –80 kPa relative — and returns a discrete feedback signal to the PLC input card, confirming grip acquisition before the robot arm initiates motion. This closed-loop confirmation architecture directly addresses the mis-pick failure mode that accounts for a disproportionate share of unplanned downtime in high-speed assembly lines.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The VMS-2110-24 integrates four functional sub-systems within a single aluminum-bodied housing: the compressed-air ejector stage, the vacuum monitoring circuit, the solenoid switching valve, and the blow-off pulse generator. Understanding the interaction between these sub-systems is essential for correct PLC program design and fault-tree analysis.

Ejector Stage Architecture: The Venturi ejector operates on the Bernoulli principle — high-velocity compressed air passes through a convergent-divergent nozzle, creating a low-pressure zone at the suction port. The nozzle geometry in the VMS series is optimized for a supply pressure range of 4.0 – 7.0 bar, producing a vacuum flow rate sufficient for workpieces with surface areas up to approximately 200 cm² (depending on leakage rate). Unlike rotary vane vacuum pumps, the ejector has no rotating parts, which eliminates bearing wear as a failure mode and allows the module to tolerate intermittent duty cycles without thermal accumulation.

Vacuum Monitoring Circuit: The integrated pressure switch uses a piezoresistive sensing element referenced against atmospheric pressure. The switch point is factory-set but field-adjustable via an external potentiometer accessible without disassembly. The PNP output stage sources 24 V DC when vacuum exceeds the set threshold, providing a logic-high signal directly compatible with standard PLC digital input modules (IEC 61131-2 Type 1 or Type 3 inputs). The hysteresis band — typically 5 – 8 kPa — prevents output chatter during minor pressure fluctuations caused by workpiece surface porosity.

Solenoid Switching Valve: The internal 2/2-way normally-closed solenoid valve controls compressed-air flow to the ejector nozzle. The coil is rated for continuous energization at 24 V DC, with a thermal class F insulation system (155 °C maximum winding temperature). The valve body incorporates a manual override button — a critical feature for commissioning and maintenance, allowing technicians to verify ejector function without PLC program execution.

Blow-off Pulse Generator: Upon de-energization of the main solenoid, the blow-off circuit routes a brief pulse of compressed air directly to the vacuum port, collapsing residual vacuum and actively releasing the workpiece. This prevents the adhesion delay that occurs with passive vacuum decay, particularly on non-porous workpieces such as glass panels or polished metal sheets. The pulse duration is adjustable, allowing engineers to tune release timing to match conveyor indexing speed without modifying PLC cycle times.

EMC Design: The solenoid coil incorporates a transient suppression diode (flyback diode) across the coil terminals, clamping the inductive kick voltage to approximately 1 V above supply rail when the coil is de-energized. This eliminates the voltage spike that would otherwise couple into adjacent 24 V DC wiring and potentially trigger false inputs on nearby PLC cards. The M8 connector shell is bonded to the module housing, providing a continuous shield ground path when used with shielded M8 cables.

System Integration Benefits

• Single-module BOM reduction: Replaces four discrete components (ejector, pressure switch, solenoid valve, blow-off nozzle) with one part number, reducing procurement lead-time exposure and spare-parts inventory carrying cost.
• Direct PLC I/O compatibility: The 24 V DC solenoid input and PNP switch output interface directly with standard digital I/O modules from Siemens (S7-1200/1500 SM 1221/1222), Allen-Bradley (1769-IQ16/OQ16), Mitsubishi (QX40/QY40P), and Omron (CJ1W-ID211/OD211) without relay interposing or signal conversion.
• Deterministic grip confirmation: The closed-loop vacuum feedback signal enables the PLC program to implement a grip-confirmed interlock before initiating robot motion, reducing mis-pick events to a detectable and recoverable fault state rather than a silent production defect.
• Reduced wiring complexity: A single M8 4-pin cable carries both the solenoid control signal and the vacuum switch feedback, halving the cable count compared to discrete component installations and reducing the probability of wiring errors during commissioning.
• Predictable cycle time contribution: The <150 ms vacuum build time to –60 kPa is a fixed, characterizable parameter that can be incorporated directly into PLC motion sequence timing, unlike rotary pump systems where build time varies with pump wear state.
• Active workpiece release: The integrated blow-off function eliminates passive vacuum decay delay, enabling tighter cycle time budgets on high-speed lines without increasing the risk of workpiece adhesion or double-pick events.
• Diagnostic transparency: The discrete vacuum switch output provides a real-time, PLC-readable signal that can be logged by the SCADA/HMI layer, enabling trend analysis of grip acquisition time as a leading indicator of suction cup wear or circuit leakage development.
• Manifold scalability: The VMS-2110-24 is designed for manifold mounting, allowing multiple modules to be ganged on a common compressed-air rail for multi-zone vacuum systems without additional pneumatic fittings or cross-connection tubing.
• Maintenance access without disassembly: The manual override button and field-adjustable switch point allow technicians to verify module function and recalibrate the vacuum threshold during scheduled maintenance windows without removing the module from the panel or interrupting adjacent circuits.
• Thermal stability across ambient range: The 0 °C to +50 °C operating range covers the majority of industrial indoor environments, including unheated warehouses in temperate climates and air-conditioned cleanrooms, without requiring supplemental heating or cooling provisions.

Quality Assurance & Global Logistics

Every Norgren VMS-2110-24 unit supplied by siemensplc.com is sourced through verified industrial distribution channels and handled under documented incoming inspection procedures. Physical integrity, original manufacturer packaging, and part number cross-reference against Norgren’s official database are verified prior to listing. Units are stored in climate-controlled warehousing in Xiamen, China, maintaining temperature and humidity within the manufacturer’s storage specification to preserve seal elastomer properties and electronic component integrity.

Shipments originate from Xiamen, Fujian Province, China — a major international logistics hub with direct access to Xiamen Gaoqi International Airport (XMN) and Xiamen Port, one of China’s top-five container ports by throughput. This geographic position enables:

• Air freight to Southeast Asia: 1 – 2 business days transit (Singapore, Bangkok, Kuala Lumpur, Jakarta)
• Air freight to Middle East: 2 – 3 business days transit (Dubai, Riyadh, Doha)
• Air freight to Europe: 3 – 5 business days transit (Frankfurt, Amsterdam, London)
• Air freight to North America: 4 – 6 business days transit (Los Angeles, Chicago, Toronto)
• Express courier (DHL/FedEx/UPS): Door-to-door tracking with customs clearance support

Export documentation — including commercial invoice, packing list, certificate of origin, and HS code declaration (HS 8481.20 or 8543.70 as applicable) — is prepared for each shipment to facilitate smooth customs clearance in destination countries. For orders requiring FORM E (ASEAN-China FTA) or other preferential origin certificates, please advise at the time of order placement.

All units carry a 12-month warranty from the date of shipment, covering manufacturing defects under normal operating conditions as defined by Norgren’s published application guidelines. Warranty claims are processed with direct technical liaison to the supply chain — no third-party intermediary delays.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, Fujian, China
© 2026 siemensplc.com. All rights reserved.