Varian Turbo-V 70 PCB series Instructions For Use Manual page 64

TECHNICAL INFORMATION
By pressing the CYCLE NUMBER pushbutton,
selectYES if relay R2 must operate only after the run-
up time or select NO when the R2 operation is
needed right from start of the turbopump and after the
rotational speed of the turbopump exceeds for the
first time the speed threshold value as shown in the
following figure.
Cycle diagram
58 87-900-871-01 (B)