General; Turbo-V70 Controller Eurocard Description; Controller Specifications - Varian Turbo-V70 Instructions Manual

1-1 General

The Turbo-V70 controller eurocard is a microprocessor-
controlled, solid-state, frequency converter with self-
diagnosis and protection features.
The controller drives the Turbo V-70 pump series by
controllling the voltage and current respect to the
speed reached by pump.
It incorporates all the facilities required for the
operation of the Turbo-V70 pump series: pump
start/stop, digital current and speed control, analog
signals for external indicators.
The power is externally supplied.
All the input/output connections are performed on three
connectors (J2, J3 and J4).
The controller is also designed to be controlled by a
host computer via an RS-232 connection (connector
J5).

1-2 Turbo-V70 controller eurocard description

The controller is a solid-state frequency converter
which is driven by a single chip microcomputer and is
composed of a PCB which includes all the circuitry
necessary for its operation.
The microcomputer generates the variable output
voltage according to the software and the gas load
condition of the pump.
Moreover, it manages
input/output connection information, and gives output
for a fully automatic operation.
signals from sensors,
The controller can be operated via remote signals
through an RS-232 connection. The RS-232 signals are
available on J5 connector.
The controller can be operated in local mode through
suitable switches connected between the input pins of
J4 connector and ground (see para. 2-4 for a detailed
description of the input signal present on J4 connector).

1-3 Controller specifications

Imput:
- Voltage
- Power
Output:
- Voltage
- Frequency
- Power
Operating temperaure
Storage temperature
Weight
2
SECTION I - DESCRIPTION
20.4 to 32.2 Vdc
with 2 Vpp max ripple
60 W min.
42 Vac nominal ±10%,
3-phase
1250 Hz, ±2%
54 W maximum
0°C to + 40 °C
-20°C to + 70°C
0.5 Kg (1.1 Ibs)
87-900-879-01 (A)