3.10 Changing the start delay timeGenerally it will make sense to let the turbomolecular pumprun up immediately after applying the start command.However when operating two or more turbomolecularpumps off a single power supply unit, it may make sense tostart the pumps one after the other. One way of achievingthis is to enter a start delay time differing from 0.To set up the start delay time proceed as follows:With the aid of a Windows PC and the PC software“TURBO. DRIVE Server” change the setting for the parame-ter 36 “Start delay time”. The possible values for parameter36 can be varied within the limits of 0 to 25.5 minutes (0 to255).So as to retain the value saved for parameter 36 whenswitching the pump off, the parameter value needs to besaved permanently. For this enter any value (for example 1)for parameter 8. Thereafter changed parameters will besaved permanently.Operation46 17200492_002_A5 - 04/2011 - © Oerlikon Leybold Vacuum