Soft Start - Agilent Technologies TwisTorr Medium-TMP Mode D'emploi

17 Technical Information
Procedure to Connect the Serial and I/O Ports to an External
Cable

Soft Start

"Soft Start" mode is provided to start the pump after a protracted
stop of the TwisTorr 404/704/804 FS. This allows a better grease
distribution in the bearings.
The "Soft Start" mode is disabled by default. The "Soft Start" mode
can be activated by a suitable software, by Remote I/O or by Front
Panel command (see the paragraphs "INTERCONNECTIONS" and "RS
232/485 COMMUNICATION DESCRIPTION"). "Soft Start" frequency
steps are the followings: 200 Hz, 300 Hz, 680 Hz, 714 Hz and 825 Hz.
The pump soft start will end when the target frequency is reached.
The pump remains at each step for a period of 300 s. A fail condition
occurs if the pump is not able to properly spin up the driving
frequency (Too High Load Error).
168/181 TwisTorr Medium-TMP onboard Controller User Manual / 87-901-050-01 (B)