SMC Networks AV2000 Manual page 2

Be sure to read before handling. Refer to pages 14-21-3 to 14-21-4 for Safety Instructions and Common Precautions.
Caution on Design
Warning
1. Actuator drive
When using solenoid valve or actuator in the outlet side of this
product, implement appropriate measures to prevent potential
danger caused by actuator operation.
2. Holding pressure
Since the valve might have slight interal leakage, it is not
suitable for holding pressure in a tank or another vessel for a
long period of time.
3. Maintenance space
Allow the sufficient space for maintenance and inspection.
Selection
Warning
1. Confirm the specifications.
The products presented in this catalog are 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
specifications.) Please contact SMC if using for other fluids
than compressed air.
2. Extended periods of continuous energization
Please contact SMC if valves will be continuously energized
for extended periods of time.
3. Operation of closed center solenoid valves
Even if this product is used for closed center solenoid valves
or actuator with a load factor of more then 50%, jumping
(stick-slip phenomenon) cannot be prevented.
4. Using a regulator in the outlet side
When mounting a regulator in the outlet side (A port side), use
a residual pressure relief regulator (AR25K to 40K) or a check
type regulator. With a standard regulator (AR10 to 60), the
outlet side pressure may not be released when this valve is
exhausted.
5. Operation of solenoid valves in the outlet side
To operate solenoid valves mounted on this product's outlet
side (A port side), first confirm that the outlet side's pressure
(P) has increased to become equal to the inlet side's pressure
(P).
6. Operation
The residual pressure release function of this product is for
emergency use only; therefore, avoid the operation in the
same manner as ordinary 3 port valves.
7. Using a lubricator
If mounting a lubricator, mount it on the inlet side (P port side),
of this product. If mounted on the outlet side (A port side),
back flow of oil will occur and may spurt out of the valve's R
port.
8. Operation for air blowing
This product cannot be operated for air blowing due to the
mechanism that switches the main valve to be fully open after
the outlet side's pressure increases to approximately 1/2 of the
inlet side.
14-3-2
Precautions
or malfunction. (Refer
Caution
1. Voltage leakage
Particularly when using a C-R element (surge voltage
suppressor) for protection of the switching element, use cation
that leakage voltage will increase due to leakage current
flowing through the C-R element, etc.
Power
supply
AC coil is 20% or less of rated voltage.
DC coil is 3% or less of rated voltage.
2. Low temperature operation
Although the valve can be operated at temperature as low as
0°C, measures should be taken to avoid solidifying or freezing
drainage and moisture, etc.
to
Warning
1. If air leakage increases or equipment does not
operate properly, stop operation.
After mounting or maintenance, etc., connect the compressed
air and power supplies, and perform appropriate function and
leakage tests to confirm that the unit is mounted properly.
2. Instruction manual
Mount and operate the product after reading the manual
carefully and understanding its contents. Also keep the
manual in a place where it can be referred to as necessary.
3. Painting and coating
Warnings or specifications printed or labeled on a product
should not be erased, removed or covered up.
Furthermore, please contact SMC before painting the resin
parts, as this may cause adverse effects depending on the
solvent.
Caution
1. To perform the initial speed adjustment of a outlet
side actuator, supply air from this valve's inlet side
and turn ON the pilot valve. Then, rotate the needle
clockwise from the fully closed position.
Selection
Switching element
OFF
Resistor
Valve
Leakage current
Mounting
Adjustment