# PID controller and tune tuning

**URL:** <https://forumautomation.com/t/pid-controller-and-tune-tuning/4765>\
**Category:** Interview Q & A\
**Created:** [September 27, 2018, 7:38am UTC](https://forumautomation.com/t/pid-controller-and-tune-tuning/4765 "2018-09-27T07:38:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cipher\_one](https://forumautomation.com/letter_avatar_proxy/v4/letter/c/58f4c7/32.png) [@cipher\_one](https://forumautomation.com/u/cipher_one)\
**Post date:** [September 27, 2018, 7:38am UTC](https://forumautomation.com/t/pid-controller-and-tune-tuning/4765/1 "2018-09-27T07:38:31Z")

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The gain of a PID controller is “1”. What is the proportional band?