What is safety interlock?

What is safety interlock?

A SAFETY INTERLOCK is a feature that makes the state of two mechanisms or functions mutually dependent. It may be used to prevent undesired states in a finite-state machine, and may consist of any electrical, electronic, or mechanical devices or systems.

How does a safety interlock switch work?

Noncontact safety interlock switches work by coupling a moveable door guard with the power source of the hazard. In most applications an interlock is a device used to help prevent a machine from harming its operator or damaging itself by stopping the machine when tripped.

What is an interlock device on a machine?

An interlock can be defined as a device that prevents you from making an inappropriate maneuver, or adjusts the system to a safe state if you make an inappropriate maneuver.

What are the three types of interlocks?

There are three types of interlocks: – mechanical, – electrical, – logical.

Why are interlocks used?

Safety interlocks prevent access to powered machinery and stop inadvertent start-ups while personnel are inside a dangerous area. They do this by forcing operators to isolate the power before anyone gains access.

What is pump interlock?

To avoid a dead-head of the pump as a result of closed suction and discharge valves, you can deploy valve interlocks to enforce a predefined valve operation sequence. The valve operation sequence guarantees that the suction and discharge valves are opened first, before the power switch of the pump can be turned on.

Where is interlock switch located?

Manufacturing and industrial environments use interlock switches in machinery of all types. Interlock switches are also used in the domestic environment, in devices such as automated gates or slam-lock doors.

What is the purpose of interlocks?

An interlock is a type of device that is used to prevent undesirable conditions in machines, which may include mechanical or electronic systems or devices. In almost all applications, it is utilized to aid in preventing machines from causing harm to the machine itself or to the operators.