Field help (WAITIM) 

Waiting time is 'delay time' that occurs after an operation. It is non-productive time such as drying time or cooling time that occurs after a process has been completed on a machine and until the machine can next be used.

 Waiting time is always expressed in hours. It does not use the time unit defined in the routing header (field Time unit). Waiting time is not applied to the work center load.

If machine time is required for an operation during the allowed waiting time you should add a new operation to this routing. A machine might be required for example, for drying or cooling components at a work center. The additional operation must be for the appropriate resource type, such as 'cooler'.

When scheduling time for these resources if, for example, a work center (machine or labor) runs from 08:00-12:00 and 13:00-17:00 with a break for one hour between 12:00-13:00: