140

Snap Action Switch

VX

Precautions

■ Correct Use

Mounting Direction

For a switch with an actuator, mount the switch in a direction where

the actuator weight will not be applied to the switch.

Since the switch is designed for a small load, its resetting force is

small. Therefore, resetting failure may occur if unnecessary load is

applied to the switch.

Operation

Keep the operation control completely separate from the actuator of

the switch, and push it down fully when starting operation. Do not dis-

place the operating position of the actuator when machining.

Consult OMRON in advance if the operating speed is to be extremely

slow, or if the pushbutton is to be set somewhere between the free

position and operating position.

Mount pin pushbutton switches so that stroke of the pushbutton and

the stroke of the operating control overlap on a vertical line. The

stroke of the switch, after operation, should be set to 60- 90% that of

standard OT (MIN operation).

Using Microloads

Using a model for ordinary loads to switch microloads may result in

faulty operation. Instead, use the models that are designed for micro-

loads and that operate in the following range;

However, even when using microload models within the operating

range shown above, if inrush current or inductive voltage spikes

occur when the contact is opened or closed, it may increase contact

wear and so decrease the service life. Therefore, insert a contact

protection circuit where necessary.

■ Cautions

Handling

Be careful not to drop the switch. Doing so may cause damage to the

switch’s internal components because it is designed for a small load.

Solder Terminal Connection

Quickly finish the soldering of the lead wire to its terminal. Use a sol-

dering iron rated at 60W and preferably complete the soldering within

5 seconds.

Excess wattage or prolonged heating can deteriorate the characteris-

tics of the switch.

Insulation Distance

When mounting, make sure there is sufficient insulation distance

between the switch and its mounting panel. If it is insufficient, install

an insulation guard or separator. Always install an insulation guard or

separator when mounting the microswitch on a metallic body. Con-

tact your OMRON representative for information about insulation

guards and separators.

Application Environment

Do not use the Switch in locations that are subject to toxic gas, sili-

con, excessive dust, excessive dirt, high temperatures, high humidity,

sudden temperature changes, water splashes, or oil splashes.

Otherwise, damage resulting by faulty contact of the Switch contacts,

corrosion, or other causes, or other functional faults may occur.

Depending on environmental conditions, the switch should be

rechecked about 3 to 6 months after it has been assembled.

Operating range

for micro load

models VX-01

Operating

range for

general-

load models

VX-5

Current (mA)

Inoperable

range

1,000

100

10

1

0.1

30

12

24

5

0

1mA

100mA 160mA

100mA

0.16mA

26mA