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The Multi-function Vacuum Generator Module VQ is a twin-nozzle vacuum generator designed for efficient control of large vacuum flows in industrial automation systems. Its multitasking capability allows it to generate and maintain vacuum levels with one signal input, matching conventional models in simplicity while offering enhanced performance through intelligent two-stage suction design.
The module is constructed using PVFM (polyvinyl formal) as the primary element material, ensuring durability and chemical resistance. No copper-based metallic materials are used in the flow path to prevent contamination and ensure compatibility with sensitive processes. Seal rubber components utilize HNBR or FKM elastomers, which provide high resistance to ozone and environmental degradation.
The VQ features a twin-nozzle configuration where a large-bore nozzle initiates vacuum generation up to a prescribed reference pressure level, followed by a small-bore nozzle that maintains the stable vacuum. This staged approach reduces air consumption and improves energy efficiency. The module is compatible with standard pilot valve control systems and supports both normally closed and normally open valve operation via double-piloted configurations.
The VQ operates within an input pressure range of 0.3 to 0.7 MPa, with a rated vacuum pressure range from -100 to +100 kPa. It functions reliably across temperatures from 5°C to 50°C and humidity levels between 35% and 85% RH without dew condensation. The module is tested at proof pressures of 1.05 MPa (air supply circuit) and 0.2 MPa (vacuum circuit), with a maximum rated pressure of 500 kPa. It operates on either 24 VDC ±10% or 100 VAC ±10%, consuming a maximum current of 40 mA at no load.
The module has a fixed width of 31.5 mm and is available in two switch output configurations: NPN open collector (VUS-33R-N2) or PNP open collector (VUS-33R-P2), with both providing two independent output points (SW1, SW2). The maximum load current supported is 125 mA, and the maximum supply voltage is 30 VDC for NPN models and 24 VDC for PNP models.
The VQ integrates seamlessly into existing pneumatic systems via standard pilot valve connections. It supports indirect operation through a pilot valve, enabling precise control of vacuum generation with minimal response time—ranging from 10 to 20 milliseconds depending on input type (24 VDC or 100 VAC). The module is designed for direct integration into automated processes requiring reliable, low-consumption vacuum control.
| Specification | Details |
|---|---|
| Fluid medium | Air [JIS B 8392-1: (Class 1.2.1 to 2.4.3)] | Air, non-corrosive gas, incombustible gas |
| Operating pressure range | 0.3 to 0.7 MPa |
| Operating temperature range | 5 to 50°C (No freezing) |
| Operating humidity range | 35 to 85% RH (No dew condensation) |
| Proof pressure (air supply circuit) | 1.05 MPa |
| Proof pressure (vacuum circuit) | 0.2 MPa |
| Rated voltage | 24 VDC ±10% | 100 VAC ±10% |
| Operating type | Indirect operation by pilot valve |
| Valve type | Normally closed | Normally open | Double-piloted *1 |
| Response time (OFF→ON) | 24 VDC: 15 msec (-S3 spec.: 20 msec) / 100 VAC: 15 msec (-S3 spec.: 20 msec) | 24 VDC: 12 msec (-S3 spec.: 18 msec) / 100 VAC: 12 msec (-S3 spec.: 18 msec) | 24 VDC: 10 msec (-S3 spec.: 15 msec) / 100 VAC: 10 msec (-S3 spec.: 15 msec) | 24 VDC: 18 msec (-S3 spec.: 35 msec) / 100 VAC: 18 msec (-S3 spec.: 35 msec) | 24 VDC: 15 msec / 100 VAC: 20 msec | 24 VDC: 10 msec (-S3 spec.: 12 msec) / 100 VAC: 10 msec (-S3 spec.: 12 msec) |
| Response time (ON→OFF) | 24 VDC: 18 msec (-S3 spec.: 25 msec) / 100 VAC: 24 msec (-S3 spec.: 31 msec) | 24 VDC: 10 msec (-S3 spec.: 15 msec) / 100 VAC: 16 msec (-S3 spec.: 21 msec) | 24 VDC: 10 msec (-S3 spec.: 10 msec) / 100 VAC: 16 msec (-S3 spec.: 16 msec) |
| Element material | PVFM (polyvinyl formal) |
| Blow-off air flow rate | 0 to 50 L/min [ANR] (Supply pressure: 0.5 MPa) |
| Rated pressure range | -100 to 100 kPa |
| Proof pressure | 500 kPa |
| Current consumption | 40 mA max. (at no load) |
| Switch output: Output type | NPN open collector output (VUS-33R-N2) / PNP open collector output (VUS-33R-P2) |
| No. of output points | 2-point outputs (SW1, SW2) |
| Max. load current | 125 mA |
| Max. supply voltage | 30 VDC (VUS-33R-N2) / 24 VDC (VUS-33R-P2) |
| Internal voltage drop | 1.5 V max. |
| Response time | Selectable from 50 ms, 250 ms, 500 ms, 1000 ms, 2000 ms or 3000 ms |
| Output short circuit protection | Incorporated |
| Ambient temperature range | Operation: 0 to 50°C, storage: -10 to 60°C (No dew condensation or freezing) |
| Ambient humidity range | Operation/Storage: 35 to 85% RH (No dew condensation) |
| Withstand voltage | 1,000 VAC for 1 min. (between case and lead wire) |
| Temperature characteristics | ±2% F.S. max. (Standard temp.: 25°C, range 0 to 50°C) |
| Metric size (mm) | φ8, φ10 | φ6, φ8, φ10 | φ12 |
| Material restriction | Added types for fields that require "no copper-based materials" and "countermeasures against low-concentration ozone" |
| Noise level | Air exhaust noise of silencer vent type is improved from 85dB[A] to 75dB[A] (Internal comparison) |
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