Technical Information
TwisTorr Medium-TMP Rack Controller Description
17
TwisTorr Medium-TMP 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
pump and a keyboard, and a rear panel with input/output
connectors. The following figure is a picture of the TwisTorr Medium-
TMP Rack Controller.
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. 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:
Front panel switches
Remote signals via rear panel connectors
RS 232 and RS 485 serial link.
TwisTorr Medium-TMP Rack Controller User Manual /
87-901-049-01 (B)
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