[SM-215164-A/2]
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23
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OPERATION
５
5. OPERATING RECOMMENDATION
5.1 Function
1) 4KA series
4KA410
No signal current (Illustrated)
P
→
A
B
→
R2 (R1 port is closed.)
When actuated
P
→
B
A
→
R1 (R2 port is closed.)
PR is an exhaust port of the pilot pressure line.
4KA420
When Sol
a is actuated (Illustrated)
P
→
A
B
→
R2 (R1 port is closed.)
When Sol
b is actuated
P
→
B
A
→
R1 (R2 port is closed.)
New position of the spool is held
where it is even after the solenoid
is deactuated.
4KA430, 4KA440, 4KA450
No signal current to 4KA430 (Illustrated)
P
・
A
・
B
・
R1
・
R2 are closed.
No signal current to 4KA440
P (Closed.)
A
→
R1
B
→
R2
No signal current to 4KA450
P
→
A
・
B
R1
・
R2 (Closed)
When either Sol a or Sol b is actuated, it functions as same as that of
4KA420.
