Agilent Technologies Turbo-V 551 Rack Notice De Mode D'emploi page 210

17 Technical Information
Turbo-V 551 Rack Controller Description
Turbo-V 551 Rack Controller Description
The model is provided with a front panel with an LCD alphanumeric
display to indicate the operating conditions/parameters of the
Turbo-V pump and a keyboard, and a rear panel with
input/output connectors. The following figure is a picture of the
Turbo-V 551 controllers.
The controller is a solid-state frequency converter which is driven by
a single chip DSP and is composed of one PCB which include 3-phase
output, analog and input/output section, Digital Signal Processor and
digital section.
The controller converts mains voltage supply into a 3-phase, low
voltage, medium frequency output which is required to power the
pump. The controller can be operated by a remote host computer via
the serial connection. A Windows-based software is available (T-Plus
optional). The DSP generates the variable output frequency and
controls the 3-phase output voltage according to the software and the
gas load condition of the pump. Moreover, it manages signals from
sensors, input/output connection information to be displayed, and
gives outputs for a fully automatic operation.
An EEPROM internal to the DSP is used to store pump operating
parameters and the input/output programmed information.
The controller can be operated via:
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Front panel switches
Remote signals via rear panel connectors
RS 232 and RS 485 serial link.
Turbo-V 551 Rack Controller User Manual / 87-901-031-01 (A)