Soft Start - Agilent Technologies Turbo-V 750 TwisTorr Mode D'emploi

Figure 57

Soft Start

"Soft Start" mode is provided to start the pump after a protracted
stop of the Turbo-V 750/850 TwisTorr Pumping System. This allows a
better grease distribution in the bearings.
The "Soft Start" mode is disabled by default.
To enable the "Soft Start" mode it must be activated by the suitable
software or Remote I/O com-mand (see the paragraphs
"INTERCONNECTIONS" and "RS 232/485 COMMUNICATION DE-
SCRIPTION").
"Soft Start" frequency steps are as follow: 350 Hz, 450 Hz, 550 Hz, 650
Hz, 750 Hz and 825 Hz. The pump remains at each step for 300 sec
and the minimum ramp-up time in "soft Start" mode is 35 minutes.
Turbo-V 750/850 TwisTorr User Manual / 87-901-020-01
7 6 5
TOO HIGH LOAD
SHORT CIRCUIT
OVERVOLTAGE
OUTPUT FAIL
Window N. 206 Bit Description
Technical Information
4 3 2 1 0
NO CONNECTION
PUMP OVERTEMP.
(T-bearing > 60 °C)
CONTROLL. OVERTEMP.
(T > 65 °C)
POWER FAIL
(V supply < 43 Vdc)
(A)
17

Soft Start

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