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The Multi-function Vacuum Generator Module VG is a compact, integrated vacuum generation unit designed for use in industrial automation and process control systems. It combines multiple functions into a single module, including vacuum generation, pressure sensing, and blow-off functionality. The unit features built-in pressure sensors, blow-off valves, and other components that are unitized to simplify system integration and reduce assembly complexity. This makes it ideal for applications requiring precise vacuum control with minimal external components.
The module is constructed using PVFM (polyvinyl formal) as the primary element material, ensuring durability and resistance to environmental stress. Internal components are sealed to maintain performance under varying conditions. The unit's design incorporates a robust housing that supports long-term reliability in industrial environments while maintaining compatibility with standard mounting and wiring practices.
The module features a standardized interface for connection to control systems. It includes one or two switch output points, allowing flexible configuration based on application needs. Pressure sensing is provided via a diffused semiconductor pressure sensor, with three selectable output types: switch output with both analog and switch signals, two-point switch output, and a low-cost analog-only output. These options enable selection of the most cost-effective and functionally appropriate signal type for specific use cases.
The VG module operates within an air medium compliant with JIS B 8392-1 (Class 1.2.1 to 2.4.3). It functions over a pressure range of 0.25 to 0.7 MPa, and is suitable for operating temperatures between 5°C and 50°C without freezing. Humidity levels from 35% to 85% RH are supported with no dew condensation risk. The module is rated for proof pressures of 1.05 MPa in the air supply circuit and 0.2 MPa in the vacuum circuit. Pressure detection accuracy is ±3% F.S. at a standard temperature of 25°C.
The module is available with one or two switch output points, depending on application requirements. Output types include NPN open collector with maximum 30 V and 80 mA (residual voltage ≤ 0.8 V), and pressure setting ranges from 0 to -100 kPa. The module supports both 24 VDC ±10% and 100 VAC ±10% input voltages, with ripple P-P limited to 10%. Current consumption varies between 15 mA and 25 mA depending on operating mode.
The vacuum generator is designed for direct integration into existing pneumatic or automated control systems. It operates via indirect pilot valve action or direct-operated poppet mechanisms, with a normally closed valve configuration. Response times are as follows: OFF→ON in 12 msec (24 VDC) / 15 msec (100 VAC), and ON→OFF in 20 msec (24 VDC) / 27 msec (100 VAC). Blow-off air flow rate ranges from 0 to 7 L/min at a supply pressure of 0.5 MPa, providing reliable venting capability when required.
| Specification | Details |
|---|---|
| Fluid medium | Air [JIS B 8392-1: (Class 1.2.1 to 2.4.3)] |
| Operating pressure range | 0.25 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% | 12 to 24 VDC ±10% (Ripple P-P: 10% max.) | 12 to 24 VDC ±10% (Ripple P-P 10% max.) |
| Operating type | Indirect operation by pilot valve | Direct-operated poppet |
| Valve type | Normally closed |
| Response time (OFF→ON) | 12 msec (24 VDC) / 15 msec (100 VAC) | 3.5 msec (24 VDC) / 8 msec (100 VAC) |
| Response time (ON→OFF) | 20 msec (24 VDC) / 27 msec (100 VAC) | 3 msec (24 VDC) / 14 msec (100 VAC) |
| Element material | PVFM (polyvinyl formal) |
| Blow-off air flow rate | 0 to 7 L/min [ANR] (Supply pressure: 0.5 MPa) |
| Current consumption | 17 mA | 25 mA | 15 mA |
| Pressure detection | Diffused semiconductor pressure sensor |
| Proof pressure | 0.2 MPa |
| Switch output: Output type | NPN open collector (30 V 80 mA max., Residual voltage: 0.8 V max.) |
| Switch output: No. of output points | 1 | 2 |
| Switch output: Pressure setting range | 0 to -100 kPa | 0 to -100 (kPa) |
| Switch output: Operating accuracy | ±3% F.S. (standard temp. 25°C) | ±3% F.S. (standard temp.: 25°C) |
| Switch output: Hysteresis | Approx. 1 to 15% of set value | 2% F.S. (Fixed) |
| Switch output: Indicator | Red LED turns on when the switch output is on |
| Analog output: Output voltage | 1 to 5 V |
| Analog output: Zero-point voltage | 1 ±0.1 V |
| Analog output: Span voltage | 4 ±0.1 V |
| Analog output: Output current | 1 mA max. |
| Analog output: Temperature characteristics (Zero-point) | ±0.1% F.S./°C (standard temp.: 25°C) |
| Analog output: Temperature characteristics (Span) | ±0.1% F.S./°C (standard temp.: 25°C) |
| Analog output: Linearity | ±0.5% F.S. |
| Switch output | NPN open collector (30 V 80 mA max., residual voltage: 0.8 V max.) |
| Switch output: Operation indicator lamp | SW1: Red LED turns on when the switch output is on | SW2: Green LED turns on when the switch output is on |
| Analog output: Temperature characteristics (zero point) | ±0.1% F.S./°C (standard temp.: 25°C) |
| Metric size (mm) | φ4, φ6 |
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