Specific Product Precautions - SMC Networks DXT1215 Instruction Manual

DXT1215 Series

Specific Product Precautions

Be sure to read this before handling products.
Environment
Do not use the valves in atmospheres in which corrosive gases,
chemicals, sea water, water, or water vapor are present or where
there is direct contact with any of these.
Manual Override
The manual override is used for switching the main valve regardless
of the valve's electric signal. As the connected actuator will start
confirm that it is safe to do beforehand.
Non-locking push type
■
Push the manual override button all the
way down.
Installation
Even if the inlet pressure is within the operating pressure range,
when the piping diameter is restricted due to size reduction of the
supply port (P), the flow will be insufficient. In such cases, the valve
will not switch completely and the cylinder may malfunction.
Surge Voltage Suppressor
■
With power-saving circuit(PWM circuit built-in type,
non-polar type)
The power consumption has been reduced to approx. 1/4 of the
startup power by eliminating the need for electrical current for holding.
(Effective after being energized for more than 5 ms when the 24 VDC
rated voltage is applied)
Operating principle
The circuit shown above
reduces power consumption
by eliminating the need for
electrical current for holding
in order to save energy.
Refer to the electrical power
waveform shown in the
graph on the right.
Residual voltage of the surge voltage suppressor
If a diode surge voltage suppressor is used, there will be a residual
voltage of approx. 1V. Pay attention to the surge voltage protection
on the controller side.
M8 Connector Type
Connector cable
■
・The connector cable for M8 connectors can be orderd as follows.
How to Order
1.To order a solenoid valve and the connector cable at the same time
(The connector cable will be included in the shipment of the
solenoid valve.)
2. To order only the connector cable
1.The M8 connector type is IP67 compliant (according to IEC 60529)
and protected against dust and water. However, it cannot be used
under water. Select an SMC connector cable (V100-49-1-□) or an
FA sensor type connector with M8 threaded 3-pin specifications
conforming to Nippon Electric Control Equipment Association
Standard NECA4202 (IEC 60947-5-2).
2.Do not use a tool to mount the connector as this may damage it.
Only tighten the connector by hand. (0.4 to 0.6 N・m)
3.The application of excessive force on the cable connector will result
in it no longer being able to satisfy the IP67 requirements. Please
use caution and refrain from applying any force of 30 N or greater
on the connector.
Failure to satisfy the IP67 requirements may result if using
connectors other than those shown above or if the connector is
insufficiently tightened.
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No.DOC1003125