Delay Time It is the time required for the response to reach half of its final value from the zero instant. It is denoted by td. Consider the step response of the second order system for t ≥ 0, when ‘δ’ lies between zero and one. c(t)=1−(e−δωnt√1−δ2)sin(ωdt+θ)

What is time delay Why is it needed?

Also referred to as delay-on-operate timers, they are often used for blower motors to delay the operation for a specific time period after a gas, electric, or oil heater has been turned on. On-delay timers are also used to stagger starting times for multiple compressors or motors that are activated by the main switch.

What is peak time in control engineering?

Peak time (tp) is simply the time required by response to reach its first peak i.e. the peak of first cycle of oscillation, or first overshoot.