CDY1S25H-300B-A73L 日本SMC鎖緊氣缸

1. Be certain to use an pneumatic circuit which will apply

balancing pressure to both sides of the piston when in a

locked stop.

In order to prevent cylinder lurching after a lock stop, when

restarting or when manually unlocking, a circuit should be used to

which will apply balancing pressure to both sides of the piston,

thereby canceling the force generated by the load in the direction

of piston movement.

2.Use a solenoid valve for unlocking which has a large effective

area, as a rule 50% or more of the effective area of the cylinder

drive solenoid valve.

The larger the effective area is, the shorter the locking time will be

(the overrun amount will be shorter), and stopping accuracy will be

improved.

3. Place the solenoid valve for unlocking close to the cylinder,

and no farther than the cylinder drive solenoid valve.

The shorter the distance from the cylinder (the shorter the piping),

the shorter the overrun amount will be, and stopping accuracy will

be improved.

4. Allow at least 0.5 seconds from a locked stop (intermediate

stop of the cylinder) until release of the lock.

When the locked stop time is too short, the piston rod (and load)

may lurch at a speed greater than the control speed of the speed

controller.

5. When restarting, control the switching signal for the unlocking

solenoid valve so that it acts before or at the same time as the

cylinder drive solenoid valve.

If the signal is delayed, the piston rod (and load) may lurch at a

speed greater than