9
TriScroll 800 Inverter Vacuum Pump
DRAFT 10/9/14
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.
The maximum power output of the inverter is 950 Watts.
At pump inlet pressures above approximately 20 Torr, 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.
Technical Specifications
❑ Input voltage: 200 V-240 V / 50-60 Hz
❑ Max frequency: 65 Hz, factory set @ 62Hz
❑ Normal Operation maximum power: 850 W
❑ Protection level: IP 20
Remote speed setting allows you to control rotational
speed using a 0-10 V analog input:
❑ V
in
> 9 V: Driving frequency will be the full
speed (factory set @62 Hz)
❑ V
in
<1 V: Driving frequency will be the minimum
speed (35 Hz)
Figure 4 Driving Frequency vs. Analog Input
Table 4 P1 I/O-1 Interlock
PIN
#
SIGNAL NAME IN/OUT
1 Interlock contact 1 Out
2 0-10Vdc, with reference
to pin 5 remote control
In
3 No Connection
4 Start/Stop (-): Connect to
Pin 5
In
5 Groundout Out
6 Interlock contact 2 Out
7 No Connection
8 Start/Stop (+): Connect to
Pin 9
In
9 +24V ±5% 50mA, with
reference to pin 5
Out
NOTE Pump operation is interlock depen-
dent. The provided mating connec-
tor must be plugged into P1 to start
the pump.
Table 4 P1 I/O-1 Interlock
PIN
#
SIGNAL NAME IN/OUT
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