Controller Test; Power Supply Test - Varian Turbo-V 70 Bedienungshandbuch

Check that pump rotor is free to rotate then press the
STOP RESET pushbutton twice to start the pump.
After the starting phase if the output connection is
shorted (output current higher than 2.2 A), the display
will be as shown in the following figure.
F A U L T :
S H O R T C I
Check connections and shortages between pump and
controller, then press the STOP RESET pushbutton
twice to start the pump.
If the pump is stopped by an emergency stop signal
provided via a remote contact, the display will be as
shown in the following figure.
S Y S T E M
O V E R R
Remove the controller power cable and check the
emergency condition.
Then reconnect the power cable and press the START
pushbutton to start the pump.
The following message is displayed if the fuse of the
transformer secondary blows:
C O N T R O L L E R
F A I
Since no operation can be carried out, contact
VARIAN.
NOTE
R C U I T
NOTE
I D E
L U R E

CONTROLLER TEST

a) Equipment required
− Digital voltmeter (DVM) true RMS.
− Dummy load: 3 x 48Ω, 50 W each or 3 x 78Ω,
50 W each.
− Potentiometer 50 KΩ, 1/4 W minimum.
b) Test set up
− Remove the power cable.
− Disconnect the Turbo-V controller.
− Remove the cover from the Turbo-V controller.
− Set potentiometer to 30 KΩ and connect it as
directed in the following figure.
− Check the line voltage selector and connect the
power cable to the appropriate socket.
Dummy load connections

Power Supply Test

a) DC voltage test
Check the DC voltages referring to test points
indicated in the following figure. The meter should
read:
− + 5Vdc ±5%
− ±12 Vdc ±5%
− Ground reference = TP6.
On the controller front panel, push the START
pushbutton and check:
− 54 Vdc ±10% between TP4(-) and TP6(+)
− 24 Vdc ±15% on the fan connector.
b) AC three-phase output voltage test
On the pump connector connect the DVM in turn
between:
pins B and C, B and D, C and D.
The meter should read 44 Vac ±15%; a different
value of 1 Vac is tolerable between phase and
phase.
c) Front panel check
On the controller front panel, press the CURRENT
pushbutton and check:
− Current
− Power
− Speed
− Temperature
On controller front panel, press STOP and remove
the power cable.
887
TECHNICAL INFORMATION
0.00 A
000 W
75 KRPM
25 °C ±2 °C
87-900-868-01 (F)