Powertronix Quasar Service Manual page 49

Service Manual
RETURN FROM MANUAL BYPASS TO NORMAL OPERATION
1. Close the `RESERVE INPUT' MCB. ( I2 )
D wait until the fan is running, indicating that the output voltage is present.
2. Close the `MAINS INPUT' MCB. ( I1)
Wait until the Operator panel shows the following indications:
D LCD is energize and
D The alarm buzzer sounds.
D The red `ALARM'LED ( 2 )
D The yellow `BYPASS ON' LED will illuminate.
3. Close the `INTERNAL BATTERY' fused switch. ( I5 ).
4. Close the `UPS OUTPUT' MCB. ( I4 ).
5. Open the `MANUAL BYPASS' MCB. ( I3 ).
6. Start the inverter as follow:
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 `BACK' and `NEXT' 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) Confirm `INVERTER ON' function by pressing `BACK' and `NEXT' at the same time.
D A **CONFIRMED** message will be displayed
f) Press `CLEAR' (d) twice to return at the main screen.
7. Within approximately 20 sec. and the follow sequence should occour:
D The green `NORMAL' LED ( 1 ) has illuminated.
D the red `ALARM' LED ( 2 ) has extinguished.
D the yellow `BYPASS ON' LED ( 4 ) has extinguished.
D the green `LOAD-on-INV' LED ( 3 ) has illuminated.
8. Place the mechanical lock, onto the `MANUAL BYPASS' MCB, or secure with a Pad-lock.
The UPS is now in the normal operating condition with the Inverter supplying the load.
3x3 UPS Commissioning
Issue 2 - November 2001
Chapter 3 - Commissioning
Validating the Installation
3 - 13