Local Epo; External Epo - Powertronix Quasar Service Manual

Chapter 3 - Commissioning
Validating the Installation
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 occur:
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.
Place the mechanical lock, onto the `MANUAL BYPASS' MCB.
The UPS is now in the normal operating condition with the Inverter supplying the load.
3.5.5

Local EPO

The following procedure describes the testing of the UPS's Emergency Power Off (EPO) functions.
The activation of the EPO circuit will shutdown all UPS functions, causing the disconnection of the Critical Load.
Ensure that it is safe to carry out this test before proceeding.
1. Press the front panel EPO push button and hold it for at least 3 seconds to confirm it.
2. All UPS functions will stop and UPS will disconnect the critical load.
Check that the following indications are seen:
D The Alarm buzzer sounds.
D The red `ALARM' LED has illuminated.
D The green `NORMAL' LED has extinguished
D The green `LOAD-on-INV' has extinguished.
D The LCD shows the alarm `EMERGENCY POWER OFF'.
To restart the UPS after an EPO, carry out the following procedure:
1. Open the `UPS OUTPUT' MCB. ( I4)
2. Open the `INTERNAL BATTERY' fused switch. ( I5 )
3. Open the `RESERVE INPUT' MCB. ( I2 )
4. Open the `MAINS INPUT' MCB. ( I1 )
D Wait until the display has de-energized.
5. Restart the UPS by following the start up procedure in chapter 3.4.
3.5.6

External EPO

The following procedure describes the testing of the UPS's Emergency Power Off (EPO) functions.
The activation of the EPO circuit will shutdown all UPS functions, causing the disconnection of the Critical Load.
Ensure that it is safe to carry out this test before proceeding.
1. Press the External EPO push button and hold it for at least 3 seconds to confirm it.
2. All UPS functions will stop and UPS will disconnect the critical load.
Check that the following indications are seen:
D The Alarm buzzer sounds.
D The red `ALARM' LED has illuminated.
D The green `NORMAL' LED has extinguished
D The green `LOAD-on-INV' has extinguished.
D The LCD shows the alarm `EMERGENCY POWER OFF'.
To restart the UPS after an EPO, carry out the following procedure:
3. Open the `UPS OUTPUT' MCB. ( I4)
4. Open the `INTERNAL BATTERY' fused switch. ( I5 )
5. Open the `RESERVE INPUT' MCB. ( I2 )
6. Open the `MAINS INPUT' MCB. ( I1 )
D Wait until the display has de-energized.
7. Restart the UPS by following the start up procedure in chapter 3.4.
3 - 10
Service Manual
3x3 UPS Commissioning
Issue 2 - November 2001