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TriScroll 300 Inverter Vacuum Pump
8
Pump Electrical Controller
The pump is powered by an inverter that converts single
phase line power into 3-phase power that drives an
induction motor at a user selectable frequency.
Several operational variables are modifiable through the
J2 serial port when using Agilent T-Plus software. A
number of additional system variables are also viewable.
Pump operation is interlocked through the P1 connector.
Pins 4 and 5, and Pins 8 and 9, must be connected
together to enable operation. A prewired connector is
supplied with the pump and should be plugged into P1.
If the pump requires more than 750 Watts to run at the set
frequency, the pump will be power limited and the output
frequency will be reduced. This mode is known as
autotuning
.
At pump start, the drive frequency is ramped up over
several seconds. This provides for smooth starting and
eliminates large in-rush currents.
