Chatsworth Products GT Series UPS (3-10kVA) - Manual (Page 12)

OPM_GTU_TWR_1K0_3K0_XUS_V015 11 DE GT Series: User manual rev date 8-11-04
Digital Energy GT Series
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3.2 Start-up
3.2.1 Start-up, utility power available
1 Push the ‘I/TEST’-button (1) and hold
for 3 seconds until a short beep is
heard. The bypass LED will shortly light
up. When the LED ‘On Line’ lights up,
the UPS is running in ‘ON LINE’ mode.
2 The equipment connected to the UPS
can now be switched on.
3.2.2 Start-up, utility power not available
(cold start or battery start)
1 Push the ‘I/TEST’-button (1) and hold
for 3 seconds until a short beep is
heard. The battery LED and LED ‘On
Battery’ will light up. The UPS operates
in ‘ON BATTERY’ mode”: it discharges
the batteries.
3.3 Use: Normal Operation
3.3.1 Normal operation conditions:
 the utility power supply is present and within allowable tolerances,
 the load does not exceed the nominal rating of the UPS and
 the operating temperature is below alarm level
 the UPS is on,
3.3.2 Normal operation indications:
 LEDs ‘Line’, ‘On Line’ and the Load LED
are on
 One or more LEDs on the level bar are on
 the buzzer is silent
3.3.3 UPS self-test
Press the ‘I/TEST’-button (1) when the
UPS is in ‘ON LINE’ mode. The UPS will
shift to ‘ON BATTERY’ mode and
automatically perform a self-test for about
10 seconds (as in fig. 3.5). The self-test
function will check the condition of the
battery. After self-test is finished and test is
O.K, the UPS will return to ‘ON LINE’
mode.
Fig. 3.2 On Line mode
Fig. 3.3 On Battery mode
Fig. 3.4 Normal operation
Fig. 3.5 UPS self test