Article provided by: Tool Eye, Inc. – Touch Master
The best way to save money while using a limit switch is to find one that meets the physical requirements of the process. An actuator type that has a shape and material useful for the job will be easy to maintain and have minimal wear with time. One should design the Tool Eye switch so that it does use more than seventy percent of the overtravel rating.
Properties of a d5-f-2b10
- A normal close type shape
- A general type of service life
- A four-directional optical operational method
- A plunger actuator
- General load
- A cable specification of one meter
- A normal close type for contact configuration
- A protection degree of IP67
- An operating speed of 0.5m/s to 1 μm/s
- A maximum operating frequency of 60 operations per minute
- Insulation resistance of 500VDC
- Dielectric strength of 1100 VAC
Limit switches convert mechanical energy into electricity using a lever to close or open the electrical contacts. Common styles are connector versions and pre-wired versions. They have designs that provide easy servicing. It is critical to adhere to the correct installation and sizing instructions, especially if you want to have an easy time adjusting the levers and actuators in the future.
Choose the right style
Common styles include the following:
- Plunger switches
- Direct opening safety limit switches
- Side rotary switches
The d5-f-2b10 has a plunger style limit switch. The plunger engages the movable contact blade when tensile or shearing forces pull the contacts apart.
Choosing the right size
Standard limit switches should have frequent actuation, of up to 30 electrical operations in a minute. Long periods of inactivity and infrequent flow of current is a sure way for the contacts to have corrosion. You must choose a limit switch with a direct opening for high-intensity applications with critical safety issues.
Connecting to contactors
Using a contactor in the control circuit is essential when the contacts do not have a designation to handle the load in use. Choose an electrical rating that adheres to the system voltage and current size. You must, however, use a relay, motor starter, contact rating, and contactor when the load is higher than the limit switch’s specifications.
Observing the use of the right polarity is essential when wiring all limit switches. Failure to follow this protocol will cause eventual arching between the contacts.
The cam meeting the actuator should have a shape that prevents the roller lever from reverting to the original position freely. Use a cam that has to taper to slowly release it from the lever, which prevents bouncing and wear of the switch. This setup also improves repeatability accuracy. You will know how to configure the cam by studying the velocity of overtravel type cams and non-travel type cams.
Operational safety is critical while setting up the limit switch. These devices are set up for mechanical operation using automatic control settings. You can prevent accidents from operator errors by the use of shields that protect the switch. Consider using a non-overriding car to activate the switch.
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