AV-SMU70EN-A
Page 1 of 3
Instruction Manual
Soft Start-up Valve
Series AV2000~5000-A
The intended use of this product is to protect machine mechanism
against sudden movement during start up.
1 Safety Instructions
These safety instructions are intended to prevent hazardous situations
and/or equipment damage. These instructions indicate the level of
potential hazard with the labels of “Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition
to International Standards (ISO/IEC)
*1)
, and other safety regulations.
*1)
ISO 4414: Pneumatic fluid power - General rules relating to systems.
ISO 4413: Hydraulic fluid power - General rules relating to systems.
IEC 60204-1: Safety of machinery - Electrical equipment of machines.
(Part 1: General requirements)
ISO 10218-1: Manipulating industrial robots - Safety. etc.
Refer to product catalogues, Operation Manual and Handling
Precautions for SMC Products for additional information.
Keep this manual in a safe place for future reference.
Caution
Caution indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk
which, if not avoided, could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Warning
Always ensure compliance with relevant safety laws and
standards.
All work must be carried out in a safe manner by a qualified person in
compliance with applicable national regulations.
Warning
When using a solenoid valve or actuator on the outlet side of this
product, implement appropriate measures to prevent potential danger
caused by actuator operation.
This product may experience air leakage (within tolerance), therefore
this valve is not suitable for holding pressure in a pressure vessel for a
long period of time.
This valve is not to be used as emergency shutoff valve. Using the
valve in such applications, take a separate measure to ensure safe
use.
Provide ventilation when using the valve in a confined area, such as in
a closed control panel. For example, install a ventilation opening, etc.
in order to prevent pressure from increasing inside of the confined
area and to release the heat generated by the valve.
The circuit designer shall ensure external cables have strain relief and
correct protective bonding in accordance with the requirements of EN
60204-1
The circuit designer shall ensure correct insulation monitoring in
accordance with the requirements of EN60204-1.
2 Specifications
2.1 Mechanical Specification
Model
AV2000-A AV3000-A AV4000-A
AV5000-A
Port Size
1(P), 2(A)
1/4
3/8
1/2
3/4
1
3(R)
1/4
3/8
1/2
3/4
Pressure Gauge Port Size
1/8
Fluid
Air
Ambient/Fluid Temperature
0-50
℃
Note 1)
Proof Pressure [MPa]
1.5
Operating Pressure Range [MPa]
0.2-1.0
Max. operating frequency
5 cycles/min not exceeding 100 cycles/day
Min. operating frequency
Once every 30 days
Min. air quality
5 µm filtration
IP rating
IP65 (DIN terminal only)
Weight [kg]
0.43
0.45
0.80
1.30
1.25
F
low
ch
a
ra
c
te
ristics
1(P)
–›2(A)
C(dm
3
/s
･
bar)
9.2
13.1
19.2
34.8
41.3
b
0.36
0.27
0.32
0.66
0.34
Cv
2.4
3.1
5.1
12.6
13.7
2(A)
–›3(R)
C(dm
3
/s
･
bar)
8.8
9.2
10.1
23.7
b
0.46
0.48
0.55
0.67
Cv
2.5
2.6
3.2
9.2
Impact resistance
Note 2)
1000 m/s
2
(11ms)
Vibration resistance
Note 3)
50 m/s
2
(0.35mm)
Note 1)
Please use dry air when operating at a low temperature to avoid freezing
Note 2)
Two axes (horizontal and vertical) and two directions were tested and no
malfunction of the valve occurred (pulse shape: sine shape), 3 times for each
condition (pilot valve ON and OFF, test sample mounted with bracket)
Note 3)
No malfunction occurred in a sweep cycle test between 10 to 150 Hz at
vibration sweep 0.35mm. The test was performed in the two axes and two
directions, 7 min per cycle (20 cycles) 20 times for each condition (pilot valve ON
and OFF)
2.2 Electrical Specification
Electrical Entry
Grommet
DIN Terminal
Coil Rated
Voltage [V]
DC
24 , 12
AC 50/60
Hz
100 , 200 , 110[115] , 220[230]
Note1)
Power
Consumption [W]
DC
0.35 (with light: 0.4)
0.35(with light: 0.45)
Allowable
Voltage
Fluctuation
DC
24V
±10% of rated voltage
12V
±10% of rated voltage
AC
100V
±10% of rated voltage
110V
Note1)
[115V]
±10% of rated voltage
[-15% to +5% of rated voltage]
200V
±10% of rated voltage
220V
Note1)
[230V]
±10% of rated voltage
[-15% to +5% of rated voltage]
Apparent Power
[VA]
AC
100V
0.78 (with light: 0.81)
0.78(with light: 0.87)
110V
[115V]
0.86 (with light: 0.89)
[0.94 (with light: 0.97)]
0.86(with light: 0.97)
[0.94(with light: 1.07)]
200V
1.18 (with light: 1.22)
1.15(with light: 1.30)
220V
[230V]
1.30 (with light: 1.34)
[1.42 (with light: 1.46)]
1.27(with light: 1.46)
[1.39(with light: 1.60)]
Surge Voltage Suppressor
Refer to Specific Product Precautions 3.7
Indicator light
LED
LED (neon bulb for
AC
)
Note 1)
The 110VAC and 115VAC are interchangeable. The 220V AC and 230V
AC are interchangeable as well.
Note 2)
Valve state is not defined if electrical input is outside of specification
2.3 Working Principle
Initial Operation Return Stroke
Figure 1
P
A
– outlet pressure
P
P
– inlet pressure
P
R
– atmospheric pressure
2 Specifications - continued
2.3.1 Low speed supply
–
Pilot valve ON
Operation
When the pilot valve is energised, the spool is pushed down by pilot air
and closes the main valve, closing the flow passage to port 3 (R). In
this case, force pushing the valve up is larger or equal to force pushing
the spool down. Therefore, the flow path from the valve to Port A is
also kept closed.
When the pilot valve turns on, the piston is pushed down by pilot air,
and the flow passage from the needle to Port A opens. The air pressure
whose flow rate is adjusted by the needle flows to Port A.
Cylinder actuation
The meter-in control of the needle slowly moves cylinder From A to B
(Figure 1).
Pressure
Ps
＞
P
A
Ps
– pressure for switching to rapid air supply
2.3.2 High speed supply
–
Solenoid valve ON
Operation -When the outlet side is filled with the air supply from the
needle, P
A
increases. When P
A
reaches a certain pressure level, force
pushing the valve up is smaller than force pushing the spool down. The
valve is pushed down, opening the flow passage and is supplied to Port
A rapidly.
Cylinder actuation -When Ps<P
A
after the cylinder reaches B (Figure 1),
the main valve fully opens and P
A
increases rapidly as shown from C to
D (Figure 1) and becomes the same pressure as P
P.
Ps
– pressure for switching to rapid air supply
P
A
– outlet pressure
Pressure
Ps
<
P
A
2.3.3 Normal operation
–
Pilot valve ON
Operation - The valve holds the fully open condition.
2 Specifications - continued
Cylinder actuation - The cylinder operation is controlled by a meter-out
circuit on the cylinder side.
P
P
=P
A
2.3.4 Quick exhaust
–
Pilot valve OFF
Operation
When the pilot valve is turned off, the pilot air of the spool is exhausted
from the pilot valve. The spool and the valve are returned upward due
to spring. This opens the flow pressure to port R exhausting the air
pressure on Port A.
The pilot air of the piston is also exhausted from the pilot valve and the
piston is returned upward due to the spring, closing the flow passage
from
the
needle.
Caution
Special products might have specifications different from those shown
in this section. Contact SMC for specific drawings.
3 Installation
3.1 Installation
Warning
Do not install the product unless the safety instructions have
been read and understood.
Stop operation if air leakage increases or the equipment does not
operate properly.
After mounting or maintenance, etc., connect the compressed air and
power supply, then perform appropriate function and leakage tests to
ensure that the unit is mounted properly.
Operation manual/Instruction manual
Mount and operate the product after reading the manual carefully and
understanding its contents. Keep the manual in a place where it can be
referred to as necessary.
Painting and coating
Warnings or specifications printed or labelled on a product should not
be erased, removed or covered up. Please contact SMC before painting
the resin parts, as this may cause adverse effects depending on the
solvent.
Maintenance space
Allow the sufficient space for maintenance and inspection.
Warning
Confirm the specifications.
The product presented in this document is designed only for use in
compressed air systems. Do not operate at pressures or temperatures,
etc., beyond the range of specifications, as this can cause damage or
malfunction (refer to the specifications).
Please contact SMC if using for any fluid other than compressed air.
Operation of closed centre solenoid valves
Even if this product is used for closed center solenoid valves or actuator
with a load factor of 50% or more, lurching (quick extension) cannot be
prevented.
Using a regulator on the outlet side
When mounting a regulator on the outlet side (A port side), use a
residual pressure relief regulator (AR25K to 40K) or check type
ORIGINAL INSTRUCTIONS
Refer to Declaration of
Conformity for relevant
Directives
Varistor
NO.1
(-) (+)
NO.2
(+) (-)
Coil
LED
