SM-P00077-A/3
3. USAGE
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2020-04-15
3.1.3
Surgeless (option symbol: S)
Diodes are incorporated in the solenoid valves of surgeless models to reduce the surge voltage of
solenoid valves to approximately 1 V. There is no polarity with 4G R Series.
3.1.4
Low heat generating/energy saving circuit (option symbol: E)
CAUTION
Do not use this type under environment where vibrations and shocks exceeding the specified
range are applied.
Such usage will cause malfunction of the valve.
Turn off the power for 50 ms or more in order to turn on the solenoid valve again on
occurrence of disturbance that causes a momentary power failure for 30 ms or less to the
power supply unit of the solenoid valve in a continuous conducting state.
When a momentary power failure for 30 ms or less occurs to a power supply unit of the solenoid
valve, the conducting state cannot be maintained.
Do not raise the voltage gradually when using this type.
The valve cannot be operated.
Solenoid valves of low heat generating/energy saving circuit models have built-in PWM circuit and are
structured to lower the electric power required for the coil to attract and hold. Power consumption is
reduced to 1/4 compared with the standard model. There is no polarity with 4G R Series.
<Low heat generating/energy saving circuit model>
Voltage
Current (A)
Power consumption (W)
At start-up
12 VDC
0.033
0.4
24 VDC
0.017
0.4
When
holding
12 VDC
0.017
0.1
24 VDC
0.008
0.1
3.1.5
AC voltage models
CAUTION
Be careful when selecting SSR (Solid State Relay).
AC voltage models have a built-in full wave rectified bridge. In case of using SSR for turning the
solenoid valve on/off, reset failure of solenoid valve may occur depending on its type.
It is recommended to consult the manufacturer of the relay and programmable controller.
Voltage V
Approx. 1V
PWM
c
irc
u
it
Power consumption (W)
Voltage (V)
Reduction in power consumption
0.4 W
0.1 W
70 ms
