TECHNICAL INFORMATION
8
8 87-900-869-01 (
D
)
−
Disconnect the potentiometer, set it to 10 K
Ω
, and
then reconnect it.
−
Connect the power cable.
−
On the controller front panel push the START and
CURRENT pushbuttons and check the front panel
display as shown in the following table.
During start-up
without
Soft Start mode
After
start-up
With
48
Ω
dumm
y load
With
78
Ω
dumm
y load
With
48
Ω
dumm
y load
With
78
Ω
dumm
y load
Current
±
10%
1.4 A
0.6 A
1.3 A
0.45 A
Power
±
10%
80 W
40 W
70 W
24 W
Speed
±
4 KRPM
34
75
9
75
Temperature
±
2
°
C
52
°
C
52
°
C
52
°
C
52
°
C
−
Check the 3-phase ac output voltage.
After start up it should be:
42 Vac with 78
Ω
dummy load and
42 Vac with 48
Ω
dummy load.
On the controller front panel, press the STOP
pushbutton and remove the power cable.
Pump over-Temperature Test
−
Disconnect the potentiometer, set it to 5K
Ω
, and
then reconnect it.
−
Disconnect the dummy loads.
−
Connect the power cable.
−
On the controller front panel push the START
pushbutton.
The display should be as shown in the previous
figure and by pressing the CURRENT pushbutton
the temperature reading should be 71 °C
±
2 °C. All
the other values should be zero.
−
Check the 3-phase ac output voltage.
It should be zero.
−
On the controller front panel, press STOP and
remove the power cable.
Functional Test
Perform the functional test with the turbopump, taking
care to check the ramp sequence and start up time.
