Powertronix Quasar Service Manual page 41

Service Manual
1. Close the MAINS INPUT MCB (I1).
2. Close the UPS OUTPUT MCB (I4).
3. Wait approx. 20 seconds and check that the following sequence occurs:
D The Operator display Panel LCD energises (if required adjust Language settings as described in
chapter 4).
D The Red `ALARM' (2) LED illuminates.
D The Alarm Buzzer sounds.
D The Secondary DC Bus has risen to approx. 650Vdc (shown on the DVM).
4. Start the Inverter using the following procedure:
a) Press the `MENU' push button (a) on the FRONT PANEL.
b) Select the `COMMAND' screen by pressing either the `BACK' (c) or `NEXT' (b) push button.
c) Confirm the `COMMAND' menu selection by pressing the `BACK' and `NEXT' push-buttons at the same
time (i.e. ENTER).
d) Select the `INVERTER ON- OFF' screen by pressing either the `BACK' (c) or `NEXT' (b) push button.
e) To start Inverter, press `BACK' and `NEXT' at the same time.
D A *CONFIRMED* message will be displayed.
D The Inverter Section will now be started and be brought on-line.
f) Press `CLEAR' (d) twice to return to the main menu.
5. Wait 20 seconds and confirm that:
D The Green `LOAD on INV' LED has illuminated.
D Using the DVM check that the Secondary DC has risen to within 1% of the appropriate level shown in the
table above (e.g. 750Vdc for a 400Vac installation).
If required the level of the secondary DC bus can be adjusted using the Potentiometer P2 on the 3 Phase Control
Logic PCB (CS0072).
Note: Turn P2 Counter-Clock Wise (CCW) to increase the Secondary DC Bus.
6. Remove the DVM from the DC bus, set it to AC Volts and reconnect to the UPS output terminals (2 and 3) to
give a Line to Line voltage measurement. As shown below:
Figure 3-3
PE U2 V2 W2
1 2 3 4
Ground
UPS Output
7. Check that the Inverter Output Voltage has risen to within 1% of the appropriate level (e.g. 400Vac).
If required the level of the Inverter AC can be adjusted using the Potentiometer P1 on the 3 Phase Control Logic
PCB (CS0072).
Note: Turn P1 Counter-Clock Wise (CCW) to increase the Inverter Output Voltage.
3x3 UPS Commissioning
Issue 2 - November 2001
Connections to distribution Terminal Block
N2 + +
5 6 7 8
Ext. Battery Input
U3 V3 W3
9 10 11 12
Reserve Input (Bypass)
Chapter 3 - Commissioning
Validating the Installation
N3 U1 V1 W1
13 14 15 16
Input Mains
N1 PE
17 18
Ground
3 - 5