Part 1 Installation
[2] DC solenoid valve, magnet switch, relay
Measure --- Install a diode in parallel with the coil. Determine the diode capacity in accordance with
the load capacity.
In a DC circuit, connecting a diode in reversed polarity will
damage the diode, internal parts of the controller and DC
power supply. Exercise due caution.
The above noise elimination measures are particularly important when a 24-VDC relay is driven
directly by a controller output and there is also a 100-VAC solenoid valve, etc.
Reference Circuit Diagram
Surge absorber
Solenoid valve
COM
SOL
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