(1) Die setup procedures that must be performed while a machine is stopped; also known as inner exchange of die.
(2) Taken from (SMED) These are setup procedures that can only be effected when a machine is in a "Zero Mechanical State." The goal of SMED is to change dies or other components/processes in under 10 minutes. "Internal" setup elements that require machines to be completely inoperable are one of the greatest sources of waste during a setup/changeover process. Therefore, much time and attention is dedicated to discovering how machines can continue running during most or all of the changeover process.