External Vacuum Controller

External Vacuum Controller VJP (-S3 spec.)

RoHS2 Compliant

Pressure adjusting function is added to conventional blow-off flow adjusting function.
It enables to prevent works from being blown away.

  • No copper-based metallic material is used in flow paths
  • HNBR or FKM is used for the seal rubber material. *Some products are only compatible in the flow path.

Advantages

Blow-off pressure control is available.

Pressure adjusting function is added to conventional blow-off flow adjusting function. It enables to prevent works from being blown away.

Realized shortening of blow-off time.

A relief mechanism (extra pressure is relieved) built into the blow-off circuit.

Supply valves are available in three different types.

Double solenoid type (vacuum retention type), which contributes energy saving, is suitable for a special application where continuous vacuum generation is required for a long time.

An LED display is adopted for the vacuum switch. Improved visibility.

Two types of vacuum switches are available, 2 switch outputs and analog output, with selection depending on the application.
For wiring, a connector wire is adopted to enhance the ease of designing the wiring layout.

Specifications

Specifications

Fluid medium Air (JIS B 8392-1:Class1.2.1~2.4.3 compliant), Vacuum
Operating pressure range 0.3~0.7MPa
Working vacuum range -100~0kPa
Operating temp. range 5~50℃ (No freezing)
Operating humidity range 35~85%RH (No dew condensation)
Vibration/Impact resistance Max. 50m/s2 / Max. 150m/s2
Protective structure Equivalent to IEC IP40
Lubrication Not required
Proof pressure (Air supply circuit) 1.05MPa
Proof pressure (Vacuum circuit) 0.2MPa

* Proof pressure does not indicate the pressure by which products operate normally but the pressure by which products does not break down.

Solenoid valve specifications (DC24V)

Rated voltage DC24V ±10%
Power consumption 1.2W (with LED)
Surge protection Varistor
Operation indicator Current application:Red LED ON
Manual operation Push button (non-lock)

Solenoid valve specifications (AC100V)

Rated voltage AC100V ±10%
Power consumption 1.5VA (with LED)
Surge protection Bridge diode
Operation indicator Current application:Red LED ON
Manual operation Push button (non-lock)

Vacuum supply valve specifications (Normally closed)

Operation type Indirect operation by pilot valve
Response time (OFF→ON) (DC24V) 10msec [15msec]
Response time (OFF→ON) (AC100V) 13msec [18msec]
Response time (ON→OFF) (DC24V) 15msec [20msec]
Response time (ON→OFF) (AC100V) 18msec [23msec]

*1. The response time at supply air: 0.5MPa with rated voltage (100%).

*2. The value ​​in [] is for -S3 specifications.

Vacuum supply valve specifications (Normally open)

Operation type Indirect operation by pilot valve
Response time (OFF→ON) (DC24V) 15msec [20msec]
Response time (OFF→ON) (AC100V) 18msec [23msec]
Response time (ON→OFF) (DC24V) 10msec [15msec]
Response time (ON→OFF) (AC100V) 13msec [18msec]

*1. The response time at supply air: 0.5MPa with rated voltage (100%).

*2. The value ​​in [] is for -S3 specifications.

Vacuum supply valve specifications (Double solenoid(*1))

Operation type Indirect operation by pilot valve
Response time (OFF→ON) (DC24V) 8msec [13msec]
Response time (OFF→ON) (AC100V) 11msec [16msec]
Response time (ON→OFF) (DC24V) 8msec [13msec]
Response time (ON→OFF) (AC100V) 11msec [16msec]

*1. Excitation time of the solenoid must be 50msec or more.

*2. The response time at supply air: 0.5MPa with rated voltage (100%).

*3. The value ​​in [] is for -S3 specifications.

Blow-off valve specifications

Operation type Indirect operation by pilot valve
Valve type Normally closed
Response time (OFF→ON) DC24V:8msec [13msec], AC100V:11msec [16msec]
Response time (ON→OFF) DC24V:18msec [23msec], AC100V:21msec [16msec]

*1. The response time at supply air: 0.5MPa with rated voltage (100%).

*2. The value ​​in [] is for -S3 specifications.

Vacuum filter specifications

Element material PVF (Polyvinyl formal)
Filtering accuracy* 5μm
Filter area 1,130mm2

* The figure under our measuring condition.

Blow-off function

Vacuum air rate 0~50L/min[ANR]
Blow-off pressure setting range -25~25kPa

* Blow-off air rate varies according to the vacuum port dia. and tube length on vacuum side.

Pressure sensor with LED display specifications (-W:2 switch output with LED display)

Power supply DC12~24V ±10% Ripple (P-P) 10% max.
Current consumption 40mA max.
Pressure detection method Diffusion semiconductor pressure sensor
Operating pressure range -100~0kPa
Pressure setting range -99~0kPa
Proof pressure 0.2MPa
No. of pressure setting 2
Operating accuracy ±3%F.S. max. (at Ta=25℃)
Hysteresis Fixed (2%F.S. max.)
Switch output NPN open collector (30V 80mA max., Residual voltage 0.8V max.)
Response time About 2msec
Indication -99~0kPa (2-digit red LED display)
Display frequency About 4 times/sec
Indication accuracy ±3%F.S. ±2 digit max.
Sensor resolution 1 digit
Operational indication SW1:Red LED turns on when pressure is above setting, SW2:Green LED turns on when pressure is above setting

* Allowable range of the variation of “Zero point voltage”, "Span voltage" and “Pressure setting value” caused by repeated voltage application is ±3%F.S.

Pressure sensor with LED display specifications (-A:1 switch output & 1 analog output with LED display)

Power supply DC12~24V ±10% Ripple (P-P) 10% max.
Current consumption 40mA max.
Pressure detection method Diffusion semiconductor pressure sensor
Operating pressure range -100~0kPa
Pressure setting range -99~0kPa
Proof pressure 0.2MPa
No. of pressure setting 1
Operating accuracy ±3%F.S. max. (at Ta=25℃)
Hysteresis Variable (About 0~15%F.S.)
Switch output NPN open collector output (30V 80mA max., Residual voltage 0.8V max.)
Analog output/Output voltage 1~5V
Analog output/Zero point voltage 1±0.1V
Analog output/Span voltage 4±0.1V
Analog output/Output current 1mA max. (Load resistance:5kΩ max.)
Analog output/LIN/HYS ±0.5%F.S. max. (at Ta=25℃)
Response time About 2msec
Indication -99~0kPa (2-digit red LED display)
Display frequency About 4 times/sec
Indication accuracy ±3%F.S. ±2 digit max.
Sensor resolution 1 digit
Operational indication Red LED turns on when pressure is above setting

* Allowable range of the variation of “Zero point voltage”, "Span voltage" and “Pressure setting value” caused by repeated voltage application is ±3%F.S.

Port size

Vacuum port tube dia.

mm size(mm) φ4, φ6, φ8

Air supply port tube dia.

Stand-alone type

mm size(mm) φ4, φ6

Manifold type

mm size(mm) φ6, φ8, φ10

Exhaust port tube dia.

Manifold type only

mm size(mm) φ6, φ8, φ10
or open to air

Vacuum supply port tube dia.

Stand-alone type

mm size(mm) φ4, φ6

Manifold type

mm size(mm) φ6, φ8, φ10

Ordering Information

Detailed Safety Instructions

Warning

1.For the double solenoid type, the state of the switching valve is neutral when the supply of both pilot air to the switching valve for vacuum generation is stopped, or at the beginning of use after shipment. When resupplying pilot air, be sure to input a signal to the pilot valve or manually operate to position the switching valve in the required state before using it.

2.When using the double solenoid type in vibration, install it so that the vibration direction is perpendicular to the operating direction of the switching valve (main valve).

3.All screws must be tightened to the correct torque referring to the instructions. The tightening torque for the mounting of the product is given in "How to fix the product", and for the filter cover is given in "Replacement Element" of Vacuum Generator VJ. Failure to tighten to the correct torque may result in air leaks, product detachment and damage to parts of the product.

Caution

1.When replacing a supply port block, make sure not to lose the seal rubber and remove any foreign deposits in the vicinity, and securely tighten the screws with a torque of 0.27 to 0.3 Nm.

Frequently Asked Questions for External Vacuum Controller Series

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