[SM-206790-A/5]
―
25
―
OPERATION
５
2) 4KBseries
4KB210
No signal current (Illustrated)
P
→
A
B
→
R2 (R1 port is closed.)
When actuated
P
→
B
A
→
R
4KB220
When Sol
a is actuated (Illustrated)
P
→
A
B
→
R
When Sol
b is actuated
P
→
B
A
→
R
New position of the spool is held
where it is even after the solenoid
is deactuated.
4KB230, 4KB240, 4KB250
No signal current to 4KB230 (Illustrated)
P
・
A
・
B
・
R are closed.
No signal current to 4K240
P (Closed.)
A
・
B
→
R
No signal current to 4KA250
P
→
A
・
B
R (Closed.)
When either Sol a or Sol b is actuated, it functions as same as that of
4KB220.
