Explore performance details, construction highlights, applications, and technical information in one clear overview.
The External Vacuum Controller VNP is a compact, high-cycle vacuum control device designed for applications where space efficiency and reliable operation are critical. Its direct-acting valve design eliminates the need for compressed air in vacuum supply, reducing system complexity and maintenance requirements. This makes it ideal for installations with limited mounting space—particularly those constrained by height or footprint—while ensuring consistent performance over extended operational cycles.
Constructed for durability and environmental resilience, the VNP features a robust housing suitable for industrial environments. It is rated for use with air (JIS B 8392-1: Class 1.2.1 to 2.4.3 compliant) and non-corrosive, non-flammable gases. The unit is built to withstand operating temperatures from -10°C to 60°C and humidity levels between 30% and 85% RH without dew condensation or freezing.
The controller connects directly to vacuum systems via a standard interface that supports both negative pressure and compound pressure configurations. It operates within a vacuum range of -100 kPa to 0 kPa, with a compound pressure capability from -100 kPa to 300 kPa. The device uses a diffused semiconductor sensor for precise pressure detection and is compatible with four types of analog output pressure sensors.
The VNP delivers high-speed and stable switching performance with response times of 5 msec in both ON→OFF and OFF→ON transitions. It operates within an ambient temperature range of 5°C to 50°C (no freezing) and is rated for a power supply voltage of 12 to 24 VDC ±10% (ripple P-P included), with a maximum current consumption of 30 mA under full load conditions (all LEDs on, both switch outputs active). The display updates at a frequency of four times per second and includes overpressure indication via blinking display.
The VNP is available in standard configurations with no color variants or size options specified. It is offered as a single model with consistent dimensions and interface specifications suitable for integration into existing vacuum systems without requiring custom modifications.
Integration of the VNP is straightforward, featuring two switch outputs (SW) that can be connected to external control circuits or automation systems. The device operates in direct-acting mode with a normally closed valve configuration, and its proof pressures are specified at 0.9 MPa for negative pressure type and 1.4 MPa for compound pressure type, ensuring reliable performance under operational stress.
| Specification | Details |
|---|---|
| Fluid medium | Air (JIS B 8392-1: Class 1.2.1 to 2.4.3 compliant), Vacuum | Air, Non-corrosive/non-flammable gas |
| Operating pressure range | 0 to 0.55 MPa | Negative pressure type: -100 kPa to 0 kPa / Compound pressure type: -100 kPa to 300 kPa | -100 to 0 kPa | -100 to 300 kPa |
| Operating vacuum range | -100 to 0 kPa |
| Operating temp. range | 5 to 50 ℃ (No freezing) | 0 to 50 ℃ (No freezing) | 0 to 60 ℃ (No freezing) | -10 to 60 ℃ (No freezing) |
| Operating humidity range | 35 to 85% RH (No dew condensation) | 35 to 85% RH (No condensation) | 30 to 85% RH (No dew condensation) |
| Proof pressure (Air supply circuit) | 0.85 MPa |
| Proof pressure (Vacuum circuit) | 0.2 MPa |
| Rated voltage | 24 VDC ±10% | 10.8 to 30 VDC (Ripple voltage included) |
| Operation type | Direct operation |
| Valve type | Normally closed |
| Response time (OFF→ON) | 5 msec |
| Response time (ON→OFF) | 5 msec |
| Pressure sensitive element | Diffused semiconductor sensor |
| Storage temp. range | -20 to 70 ℃ (65% RH max., atmospheric pressure) (No freezing) |
| Proof pressure | Negative pressure type: 0.9 MPa / Compound pressure type: 1.4 MPa | 1 MPa | 600 kPa |
| Power supply voltage | 12 to 24 VDC ±10% (Ripple P-P included) |
| Current consumption | 30 mA max. (All LED on, 2 switch outputs on, no load) | 20 mA max. (24 VDC no-load) |
| Display frequency | 4 times/sec. |
| Monitoring feature | Overpressure indication, blinking display |
| No. of outputs | 2 SW outputs |
| Switch output | NPN open collector | PNP open collector |
| Residual voltage | 1.2 V max. (80 mA load) |
| Pressure setting range | Negative pressure type
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