When de-energized
Vacuum absorption
<Conditions> • Suction vacuum pressure (P1): –90 kPa (–0.090 MPa)
• Piping tube size: ø4 (I.D. ø2.5)
• Suction filter: When mounting FGZG220A-B040 (internal volume: 0.21 cm
3
)
P2: Release Air Guideline
[How to Adjust]
1. Adjust P2 release pressure, using a regulator, in accordance with V1 volume. We recommend that you use our
precision type, IR series.
2. When V1 volume differs in the same manifold, equalize it by adjusting the length or internal diameter of the piping.
Even when the piping length is extended a good response is ensured.
V1: Total volume from a unit to a work (cm
3
)
V2: Volume of a release air tank (cm
3
)
VQD1000-V type: 0.8
c m
3
VQD1000-VL type: 3.2
cm
3
P1: Suction vacuum pressure / Negative pressure (MPa)
P2: Release pressure / Positive pressure (MPa)
P: Detaching (Release) pressure (MPa)
∗
0 MPa (atmospheric pressure) is normal.
<Relationship between pressure and a release air tank>
De-energizing 2 solenoid valves simultaneously
Charging release air during absorption of a work piece
Energizing 2 solenoid valves simultaneously
Release air is discharged and the pressure required for detaching / releasing a work piece turns to
atmospheric pressure, resulting in smooth detachment.
PAT. PEND.
VQD1000-V
VQD1000-VL
P2: Release pressure (MPa)
Distance between the unit and the work area (mm)
V1: Total volume from the unit to the work area (cm
3
)
300
1.68
0.19
—
500
2.66
0.30
0.07
1000
5.12
0.58
0.14
2000
10.02
—
0.28
Release air
Release
Suction air
Release air
discharged
V1: Total
volume
Suction
Connection port
P1: Suction air
P2: Release air
Work piece
V2:
Charging release air
P: Atmospheric
pressure
Smooth
detachment
Suction air
Release air
Atmospheric
pressure
When energized
Release
→
Shut
Working
Working
principle
principle
Working
principle
(P + 0.1) x (V1 + V2) – (P1 + 0.1) x V1
V2
P2 =
– 0.1
Work piece
Work piece
Front matter 1