CKD VSG Series Operating instructions

Features
Vacuum switch and vacuum break
valve, etc. are unitized, so types
matching the work purpose is
selectable.
Types with analog output, 2-point
switch output, and inexpensive
analog output are available for
vacuum switch specifications.
Basic performance oriented general vacuum ejector unit
VSG Series
Nozzle diameter: ø0.5, ø0.7, ø1.0
Vacuum switch and vacuum break valve, etc. are unitized, so types
matching the work purpose is selectable.
Specifications
Descriptions VSG
Working fluid Compressed air
Working pressure range MPa 0.25 to 0.7
Ambient temperature range 5 to 50
Lubrication Not required
Supply valve specifications
Descriptions Supply valve
Control method Pilot operated poppet type
Power voltage 24 VDC 10% / 100 VAC 10%
Power consumption 1.2W (with LED) / 1.5VA (with LED)
Effective sectional area 5mm2
Manual override Push type (non-locking)
Vacuum filter specifications
Descriptions Vacuum filter
Material
Element Poly-vinyl formal
Guard Polycarbonate transparent
Body PBT
Filtration 10μm
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
30
Ejector unit
Valve unit
(Valve for vacuum generator/vacuum break)
Filter
Vacuum port (V)
Vacuum switch
Break flow rate adjusting screw
Air supply port (P)

Vacuum switch specifications
VSG Series
Specifications / circuit diagrams
Descriptions Vacuum switch
Model no. VSG… -NA VSG… -NW VSG… -A
Output specifications Switch output 1 point Switch output 2 point -
Analog output 1 point - Analog output 1 point
Power voltage 12 to 24 VDC 10% ripple content rate 10% (P-P) or less
Power consumption (24 VDC supply) 17mA or less (switch 1 point ON) 25mA or less (switch 2 point ON)
15mA or less (output current 0mA)
Working fluid Air, inert gas
Working pressure range 0 to -100kPa
Withstanding pressure 200kPa
Ambient temperature range 0 to 50
Working humidity range 35 to 85%RH (no dew condensation)
Switch output
Output no. 1 2 -
Output method NPN open collector -
Set pressure range 0 to -100kPa -
Operation precision 3%F.S. (25 ) -
Hysteresis
Approx. 1 to 15% of setting value 2%F.S. or less -
Switch capacity 30 VDC 80mA or less -
Residual voltage 0.8V or less -
Analog output
Output voltage 1 to 5V - 1 to 5V
Zero point voltage 1 0.1 V - 1 0.1 V
Span voltage 4 0.1 V - 4 0.1 V
Linearity/hysteresis 0.5%F.S. or less - 0.5%F.S. or less
Vacuum break valve specifications
Descriptions Vacuum break valve
Control method Direct acting poppet type
Power voltage 24 VDC 10% / 100 VAC 10%
Surge protective circuit Surge absorber (24 VDC), bridge diode (100 VAC)
Power consumption 1.2W (with LED) / 1.5VA (with LED)
Effective sectional area 0.3mm2
Manual override Push type (non-locking)
Circuit diagram
VSG-*A-* (unit combination: A) VSG-*B-* (unit combination: B)
VSG-*E-* (unit combination: E) VSG-*F-* (unit combination: F)
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
31
V
V
PP
V
P
V
P

How to order
20mm width discrete vacuum ejector unit
VSG F
AVacuum characteristics
B
Nozzle diameter
CUnit combination
DVacuum port (V)
G
FSolenoid valve voltage
EAir supply port (P)
Vacuum switch
specifications
NW
07
VSG Series
3
Symbol Descriptions
Vacuum characteristics Note 1
HHigh vacuum/medium flow type
LMedium vacuum/large flow rate type
EHigh vacuum/small flow rate type
Nozzle diameter Note 1, Note 3, Note 4
05 ø0.5
07 ø0.7
10 ø1.0
Unit combination Note 5, 6
Refer to Table 1 for unit combinations.
Vacuum port (V) Note 2, Note 3, Note 4
4ø4 push-in joint
6ø6 push-in joint
Air supply port (P) Note 2, Note 3, Note 4
4ø4 push-in joint
6ø6 push-in joint
Solenoid valve voltage Note 5
1100 VAC
324 VDC
Vacuum switch specifications Note 6
NW NPN output 2 point
NA NPN output 1 point + analog output
AAnalog output
A
B
C
D
E
F
G
Unit combination
Symbol Filter
Vacuum switch
with LED display
Vacuum
generator valve
Vacuum
break valve
A---
B- -
E-
F
Table 1
Note on model no. selection
Note 1: A B combination does not allow "E05"
combination.
Note 2: D E combination is only "44" or "66".
Note 3: If B is "05", D E is only "44".
Note 4: If B is "07" and "10", D E is only "66".
Note 5: When C unit combination is "A" or "B", D
solenoid valve voltage can not be
selected.
Note 6: When C unit combination is "A" or "E", G
vacuum switch specification can not be
selected.
Model no.
Filter element for change
VSG-E
Vacuum characteristics
VSG- 05 VSG-*07 VSG-*10
H
L
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
H66
32
L type ultimate vacuum
H type ultimate vacuum
Air consumption flow
Supply pressure (MPa)
0.1 0.2 0.3 0.4 0.5
H type suction flow
L type suction flow
53
40
26
13
0
20
15
10
5
0
Ultimate vacuum (-kPa)
Flow ℓ/min. (ANR)
66
80
93
0.6 0.7
L type ultimate vacuum
H type ultimate vacuum
Air consumption flow
0.1 0.2 0.3 0.4 0.5
H type suction flow
L type suction flow
53
40
26
13
0
50
40
30
20
10
0
66
80
93
0.6 0.7
L type ultimate vacuum
E type ultimate vacuum
Air consumption flow
0.1 0.2 0.3 0.4 0.5
H type suction flow
L type suction flow
53
40
26
13
0
50
40
30
20
10
0
66
80
93
0.6 0.7
E type ultimate vacuum
E type suction flow
H type ultimate vacuum
E type suction flow
60
70
Supply pressure (MPa) Supply pressure (MPa)
Ultimate vacuum (-kPa)
Flow ℓ/min. (ANR)
Ultimate vacuum (-kPa)
Flow ℓ/min. (ANR)

Dimensions
VSG-*A-* (unit combination: A)
VSG-*B-* (unit combination: B)
Unit: mm
Model no. O.D.
øD L1 L2 C
Nozzle diameter
(mm)
Ultimate vacuum
(-kPa)
Suction flow
(ℓ/min. (ANR))
Air consumption
(ℓ/min. (ANR))
Weight
(g)
VSG-H 05A-44 4 9.9 9.4 11.2 0.5 90 7 11.5 47
VSG-H 07A-66 6 12.3 11.8 11.9 0.7 93 13 23 49
VSG-H 10A-66 1 27 46 48
VSG-L 05A-44 4 9.9 9.4 11.2 0.5
66
12 11.5 46
VSG-L 07A-66 6 12.3 11.8 11.9 0.7 26 23 48
VSG-L 10A-66 1 40 46 47
VSG-E 07A-66 6 12.3 11.8 11.9 0.7 90 10.5 17 48
VSG-E 10A-66 1 21 34
Unit: mm
Model no. O.D.
øD L1 L2 C
Nozzle diameter
(mm)
Ultimate vacuum
(-kPa)
Suction flow
(ℓ/min. (ANR))
Air consumption
(ℓ/min. (ANR))
Weight
(g)
VSG-H 05B-44-* 4 9.9 9.4 11.2 0.5 90 7 11.5 74
VSG-H 07B-66-*
6 12.3 11.8 11.9
0.7
93
13 23
75
VSG-H 10B-66-* 1 27 46
VSG-L 05B-44-* 4 9.9 9.4 11.2 0.5
66
12 11.5 73
VSG-L 07B-66-*
6 12.3 11.8 11.9
0.7 26 23 75
VSG-L 10B-66-* 1 40 46 74
VSG-E 07B-66-*
6 12.3 11.8 11.9
0.7
90
10.5 17 75
VSG-E 10B-66-* 1 21 34 74
VSG Series
Dimensions
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
Note: Analog output (-A) is not used the operation indicating LED or vacuum setting trimmers.
33
13.5
2-C
V
3
314
L1 37 L2
2-ø3.2
P
2-øD
50
14
10
20
13.5
2-C
V
3
314
L1 52 L2
2-ø3.2
P
Approx. 500
6
-NA: hysteresis setting trimmer
-NW: SW2 vacuum setting trimmer
-NA: SW vacuum setting trimmer
-NW: SW1 vacuum setting trimmer
Operating indication LED
2-øD
56
14
10
20

Dimensions
VSG-*E-* (unit combination: E)
VSG-*F-* (unit combination: F)
Unit: mm
Unit: mm
Model no. O.D.
øD L1 L2 C
Nozzle diameter
(mm)
Ultimate vacuum
(-kPa)
Suction flow
(ℓ/min. (ANR))
Air consumption
(ℓ/min. (ANR))
Weight
(g)
VSG-H 05E-44-* 4 9.9 7.9 11.2 0.5 90 7 11.5 99
VSG-H 07E-66-* 6 12.3 10.3 11.9 0.7 93 13 23 100
VSG-H 10E-66-* 1 27 46 101
VSG-L 05E-44-* 4 9.9 7.9 11.2 0.5
66
12 11.5 99
VSG-L 07E-66-* 6 12.3 10.3 11.9 0.7 26 23 101
VSG-L 10E-66-* 1 40 46 100
VSG-E 07E-66-* 6 12.3 10.3 11.9 0.7 90 10.5 17 101
VSG-E 10E-66-* 1 21 34 100
Model no. O.D.
øD L1 L2 C
Nozzle diameter
(mm)
Ultimate vacuum
(-kPa)
Suction flow
(ℓ/min. (ANR))
Air consumption
(ℓ/min. (ANR))
Weight
(g)
VSG-H 05F-44-*-* 4 9.9 7.9 11.2 0.5 90 7 11.5 125
VSG-H 07F-66-*-* 6 12.3 10.3 11.9 0.7 93 13 23 128
VSG-H 10F-66-*-* 1 27 46 127
VSG-L 05F-44-*-* 4 9.9 7.9 11.2 0.5
66
12 11.5
127VSG-L 07F-66-*-* 6 12.3 10.3 11.9 0.7 26 23
VSG-L 10F-66-*-* 1 40 46
VSG-E 07F-66-*-* 6 12.3 10.3 11.9 0.7 90 10.5 17 128
VSG-E 10F-66-*-* 1 21 34
VSG Series
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
Note: Analog output (-A) is not used the operation indicating LED or vacuum setting trimmers.
34
13.5
2-C
V
3
314
L1 52 L2
2-øD
P
Approx. 500
6
14.5
30.1
20
13.5
2-C
V
3
314
L1 67 L2
4-ø3.2
P
Approx. 500
6
-NA: hysteresis setting trimmer
-NW: SW2 vacuum setting trimmer
-NA: SW vacuum setting trimmer
-NW: SW1 vacuum setting trimmer
Operating indication LED
2-øD
26
7.5
20
Manual button
LED
Vacuum break valve
Vacuum generator valve
4-ø3.2 (18) 14 3
Break air adjustment needle
26
16.5
7.5
3
6
Manual button
LED
Vacuum break valve
Vacuum generator valve
56 6
Approx. 500
(33) 14
16.5
30.1
14.5
3
6
14.5
Break air adjustment needle
14.5
50

How to use
1. Fixing method
Safety precautions Refer to Intro 13 for the general precautions of the vacuum system components.
Monitor if piping resistance or required vacuum release flow is large. Insufficient vacuum release flow could
cause problems. Check specifications before use.
CAUTION
Fix the vacuum ejector VSG with M3 screws using the fixing holes on the resin body.
(Refer to external dimension drawings for mounting hole pitch.)
2. Element replacing method
VSG Series
Safety precautions / How to use
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
35
Filter element
Model no.: VSG-E
(VSG and VSK common part)
The silencer element is the same as the square vacuum ejector
(VSB), so refer to VSB replacement silencer elements on page 23.

How to use
4. Attaching and removing individual connectors
5. Handling the vacuum switch
1. Pressure setting
1 Energizing (check wiring and supply DC power.)
2 Turn the hysteresis setting trimmer (HYS) fully in the CCW direction to set hysteresis to a minimum. (Only for vacuum switch with
analog output (-NA))
Note) If vacuum is unstable, output destabilizes if hysteresis is setting minimum.
3 Adjust the pressure setting trimmer (S1 or S2, SW) to the required setting.
Note) Use a vacuum gauge, or check the set pressure when adjusting actual machinery.
4 Apply pressure and confirm that operation actually takes place.
(For vacuum switches with analog output (-NA)
Switch output (SW): The operation (LED red) turns on when set pressure is exceeded.
(For 2-point switch output vacuum switch (-NW))
Switch output 1 (S1): The operation (LED red) turns on when set pressure is exceeded.
Switch output 2 (S2): The operation (LED green) turns on when set pressure is exceeded.
2. Setting hysteresis (only for vacuum switches with analog output (-NA) )
1 Hysteresis is adjusted using the hysteresis setting trimmer (HYS)
2 Hysteresis is adjusted from 1 to 15% of the setting. Hysteresis increases when the trimmer is turned to CW.
3 Checking hysteresis
Gradually raise and lower pressure near the set pressure, and using the vacuum gauge, monitor values at which the operation
LED turns on or off. The difference in pressure displayed when the LED is on or off is hysteresis.
4 Example of hysteresis adjustment
If pressure has a pulse and output is thin and intermittent, use large hysteresis.
To set the tolerable range for pressure drops.
Attaching individual connectors
Individually inserted connectors are installed by inserting until they
stop.
Removing individual connectors
To remove individually inserted connectors, hold the lever on the
back of the connector down and pull the plug out.
Connector back
VSG Series
3. Adjustment method of break valve
Adjustment method of break air
Turning the vacuum release air adjustment needle to right (CW) decreases
the release air flow and turning it to left (CCW) increases it.
* After adjusting vacuum release air, tighten the lock nut so that the setting
does not change.
100 VAC 24 VDC
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
36
(Black) 0V
(Red) + V
Lever
-0V
(black)
+ 24V
(red)
() blue ( ) blue
Flow: large
P
Flow: small
Vacuum break air flow control needle
Lock nut

How to use
4. Wiring and piping
(1) Turn power off before wiring.
(2) Check lead color and terminal output when wiring.
(3) Refer to Fig. 1 Connection method when connecting wires.
(4) Do not apply strong tension or excessively bend to leads.
(5) The cable is connected or disconnected from the connector. When disconnecting the cable, hold the connector, press down on
the stopper and pull the cable out. Load is applied on the switch PCB each time the cable is connected or disconnected, so
minimize the times this step is done.
5. Cautions
1 This product is not drip- or dust-proof. Avoid using in exposure to water, oil, or dust.
2 This product is not explosion-proof. Avoid using in exposure to flammable or explosive gases or fluids.
3 Do not use this product for applications where set temperature range is exceeded. The sensor could be damaged.
4 When applying positive pressure during the vacuum release, check that the pressure exceeding 0.2 MPa is not applied
constantly.
5 This product cannot be used in an atmosphere or for fluids containing corrosive substances.
6 Use clean fluid as possible.
7 Use a stable DC power supply.
8 Insert a surge voltage suppressing circuit in the relay and solenoid valve, etc., connected to the output or power terminal. Avoid
using where current could exceed 80 mA.
9 When using unit power, such as switching power, ground the FG terminal.
10 Check that the output terminal (black and gray) is not short-circuited with other terminals.
11 Do not apply excessive external force to the switch.
12 Do not use wiring or applications that may cause noise, etc., to be applied. The product could break.
13 When setting pressure or hysteresis, use the enclosed dedicated screwdriver to turn the trimmer carefully within its rotation
range. Do not apply force.
3. Analog output vacuum switch (-A) output characteristics
VSG Series
How to use
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
VSY
VSH VSU
VSB VSC
VSG
VSK VSKM
VSJ VSJM
VSX VSXM
VSQVSZM Ejector system
37
5
4
3
2
1
5 26 53 80 100
Analog output (V)
Vacuum (-kPa)
Analog output characteristics
Main circuit
Load
V + (brown)
SW OUT (black)
ANALOG OUT (gray)
COM (blue)
NPN output 1 point + analog output vacuum switch (-NA) connection diagram
Main circuit
SW2 OUT (gray)
SW1 OUT (black)
V + (brown)
Load
Load
COM (blue)
2-point switch output vacuum switch (-NW) connection diagram
Main circuit
V + (brown)
ANALOG OUT (gray)
COM (blue)
Analog output vacuum switch (-A) connection diagram
Fig. 1 Connection method