SOLENOID VALVE CONSTRUCTION/OPERATION [JA5AX-EL]

id051705693200

Duty Type

Normal high

• De-energized (OFF) or duty 0%
- Because the output port (solenoid pressure) and supply port (pilot pressure) connect in the solenoid, the solenoid pressure supplied to the output port.
• Energized (ON) or duty 100%
- Because the output port (solenoid pressure) and the drain port connect, solenoid pressure is drained.

.

1
De-energized (OFF)
2
Energized (ON)
3
Output port (solenoid pressure)
4
Supply port (pilot pressure)
5
Drain port

Normal low

• De-energized (OFF) or duty 0%
- Because the output port (solenoid pressure) and the drain port connect in the solenoid, the solenoid pressure is drained.
• Energized (ON) or duty 100%
- Because the output port (solenoid pressure) and the supply port (pilot pressure) connect in the solenoid, the solenoid pressure supplied to the output port.

.

1
De-energized (OFF)
2
Energized (ON)
3
Output port (solenoid pressure)
4
Drain port
5
Supply port (pilot pressure)

ON/OFF Type (Two-way)

Normal low

• De-energized (OFF)
- The TCM does not apply an electric current to the solenoid valves. The rod moves upward by hydraulic pressure and the drain port opens.
• Energized (ON)
- The TCM applies an electric current to the solenoid valves. This excites the coil and forces the rod to move downward to retain hydraulic pressure.

.

1
OFF
2
ON
3
Drain port