Vacuum Generator
Series
Vacuum Generator VG
VH · VS
117
VU
VB
VM · VC
VG
VY
VUM
VRL
VACUUM
GENERATOR
V
＋
(Brown)
SW OUT(Black)
ANALOG OUT(Gray)
COM(Blue)
Load
Main
circuit
V
＋
(Brown)
SW1 OUT(Black)
SW2 OUT(Gray)
COM(Blue)
Load
Load
Main
circuit
V
＋
(Brown)
ANALOG OUT(Gray)
COM(Blue)
Main
circuit
5
4
3
2
1
100
80
53
26
0
Vacuum level (-kPa)
Analog output (V)
■Analog output characteristics
5. Safety Instructions
①
Do not use the vacuum generator in location where it may be exposed to water, oil drop or dust, since it
is not the drip/dust proof.
②
Do not use the vacuum generator in location where it may be exposed to inflammable or explosive gas,
liquid or atmosphere, since it is not an explosive-proof.
③
Do not use the sensor in atmosphere exceeding the range of application temperature or causing heat as
the vacuum generator malfunction may result.
④
When the positive pressure such as blow-off air is applied to the sensor, do not apply the pressure more
than 0.2MPa constantly.
⑤
Do not use it in an ambience of gas containing a corrosive substance.
⑥
Compressed air contains many kinds of drains such as water, oxidized oil, tar and other foreign
substances. Dehumidify the compressed air by using an after-cooler or a dryer and improve the air quality,
since those drains seriously impair the performance of the vacuum generator.
⑦
Supply a stable DC power to the product.
⑧
Add a surge absorption circuit to relays or solenoid valves, etc. which are to be connected with output
terminal and source terminal. Avoid any use which involves over 80mA in current.
⑨
Ground FG terminal when using a unit power source such as switching current.
⑩
Output terminals (lead wire color: black and gray) and other terminals should not be short circuited.
⑪
Do not apply excessive external impact on the sensor.
⑫
Wiring or ways by which noise is caused may cause troubles.
⑬
When adjusting pressure and the hysteresis setting, use the accompaied flathead screwdriver. Do not
apply an excessive force on the trimmer and slowly turn it within its rotation limits.
4. Wiring / Piping
（
1
）
Be sure to shut off the power supply before wiring.
（
2
）
In conducting the wiring, distinguish the wire colors and confirm the terminal output.
（
3
）
Refer to Chart 1. Connecting Method for wiring.
（
4
）
Do not give excessive tension or bending to the drawer cable.
（
5
）
The cable can be connected or disconnected from connector. In case of disconnection, please hold
connector and pull out the cable while pushing stop bar. Avoid connection and disconnection unless it is
absolutely necessary, for it will put burdens on the sensor board.
1 analog output and 1 switch output (-NA)
2 switch output (-NW)
1 analog switch (-A)
Chart 1. Connecting Method
3. Output Characteristics of 1 analog switch (Code: -A).