AV-SMU70EN-A
Page 3 of 3
4 Settings
4.1 Initial speed adjustment
To perform the initial speed adjustment of the outlet side actuator,
supply air from this valve’s inlet side and turn ON the pilot valve. Then,
rotate the needle counterclockwise from the fully closed position.
4.2 How to Find the Flow Rate
(At air temperature of 20°C)
Choke flow: (P2+0.1)/(P1+0.1)
≦
0.5
Subsonic flow, when:
Q: Air flow rate [L/min (ANR)]
S: Effective area [mm
2
]
P
1
: Inlet pressure [MPa]
P
2
: Outlet pressure [MPa]
t: Air temperature [
O
C]
NOTE:
The above formulas above are applied to pneumatics only
4.3 Manual override
Warning
Since connected equipment will operate when the manual override is
activated, confirm that conditions are safe prior to activation.
4.3.1 Push-turn locking slotted type [Type B]
While pressing, turn in the direction of the arrow.
If it is not turned, it can be operated in the same way as the non-locking
type.
Caution
When operating the locking type D with a screw driver, turn it gently
using a watchmakers screw driver [Torque: Less than 0.1N
m]
4.3.2 Push-turn locking lever type [Type C]
While pressing, turn in the direction of the arrow.
If it is not turned, it can be operated in the same way as the non-locking
type.
Caution
When locking the manual override on the push-turn locking type (B, C),
make sure to push it down before turning. Turning without first pushing
4 Settings - continued
it down can cause damage to the manual override and failures such as
air leakage, etc.
4.3.3 Non-Locking push type (AV-A-X2004)
Press the blue button to override solenoid valve.
5 How to Order
Refer to catalogue
and drawings for “How to Order”
6 Outline Dimensions (mm)
Refer to catalogue for outline dimensions.
7 Maintenance
Not following proper maintenance procedures could cause the
product to malfunction and lead to equipment damage.
If handled improperly, compressed air can be dangerous.
Maintenance of pneumatic systems should be performed only by
qualified personnel.
Before performing maintenance, turn off the power supply and be
sure to cut off the supply pressure. Confirm that the air is released to
atmosphere.
After installation and maintenance, apply operating pressure and
power to the equipment and perform appropriate functional and
leakage tests to make sure the equipment is installed correctly.
If any electrical connections are disturbed during maintenance,
ensure they are reconnected correctly and safety checks are carried
out as required to ensure continued compliance with applicable
national regulations.
Do not make any modification to the product.
Do not disassemble the product, unless required by installation or
maintenance instructions.
Removal of equipment, and supply/exhaust of compressed air
Before equipment removal, ensure that measures are in place to
prevent falling or run-away of the driven objects. Then, cut off the air
supply, electric power and exhaust air pressure from the system
using the residual pressure release function.
If handled improperly, damage or malfunction of machinery or
equipment may occur.
Low frequency operation:
Valves should be operated at least once every 30 days to prevent
malfunction (use caution regarding the air supply)
Caution
Drain flushing
Remove drained fluid from air filters periodically.
8 Limitations of Use
8.1 Limited warranty and Disclaimer/Compliance Requirements
Refer to Handling Precautions for SMC Products.
8.2 Safety relays
Warning
If a safe output from a safety relay or PLC is used to operate this valve,
ensure that any output test pulse duration is shorter than 1 ms to avoid
the valve solenoid responding.
8 Limitations of Use - continued
Warning
Soft start function is not to be used as a safety function.
8.3 failure modes
The system designer should determine the effect of the possible failure
states on the system
Energy source status
Single
Air supply present, electricity
cut
Spool returns to the off position by
spring force
Air supply cut before electricity
cut
Spool returns to the off position by
spring force
Air supply cut after electricity
cut
Spool returns to the off position by
spring force
9 Contacts
Refer to Declaration of Conformity or www.smcworld.com for contacts.
URL :
http// www.smcworld.com (Global) http// www.smceu.com (Europe)
'SMC Corporation, Akihabara UDX15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo
101 0021
Specifications are subject to change without prior notice from the manufacturer.
©
2018
SMC Corporation All Rights Reserved.
Template DKP50047-F-085H
Output signal
Test pulse
