UPS725-02-02 PowerWave 1000 (4.5 - 10 kVA) User Manual UK Dated 13/03/15
45
5: Parallel UPS System Operating Procedures
7. On ALL modules, check that the
Er21
error has disappeared from the LCD
screen and they now indicate the ‘on-bypass’ status.
a) If any module still shows
Er21
it indicates that it has a problem
concerning the parallel communication bus which must be rectified
before the UPS system can be turned on.
8. If ALL the modules are energised and operating in the ‘on-bypass’ mode,
you can now turn on the load by closing the external load isolators or
switching on the individual load items.
Note:
The load will not be receiving protected power until the UPS system
has been fully turned on.
9. On each UPS module in turn (LEAVE MODULE 1 UNTIL LAST) –
Press and hold the UPS
ON
button for approximately 3~5 seconds until you
hear two beeps, then release it.
a) The UPS will indicate the bypass voltage.
b) The audible alarm will sound intermittently but can be silenced by
pressing the alarm silence (
ON
) button.
c) The UPS will run another
tESt
for about 4 seconds to check the battery
operation.
d) If the UPS does not complete its battery test successfully the LCD will
show a
FAIL
status and the
FAULT
led will illuminate. If the self test is
successful the LCD will show an OK status for about 5 seconds.
10. When the ON button has been pressed on all module and they have
successfully passed their battery checks, they will carry out some further
‘parallel operation’ checks and, once these final tests are passed (typically
5~10 seconds), the modules will then simultaneously transfer their output
from the static bypass to the inverter.
a) The LCD mimic will now show the ‘on-line’ status with the battery being
charged.
b) The LCD meter will indicate the utility input voltage.
c) The utility input and bypass input power leds will remain illuminated
(green), and the
N+1
led will be fully illuminated if there is system
redundancy.
11. You can now check all the metered input, output and battery parameters to
ascertain that the UPS system is working correctly (see page 40).
CAUTION: Congratulations. Your load is now being provided with consistent and backed-up power.
CAUTION: When turning on the UPS for the first time, or following a long shut down period, leave the unit
running for at least eight hours to fully charge the batteries before connecting any mission-critical load,
otherwise you may not obtain the specified battery autonomy time if the utility input supply fails.
LINE
UPS
LOAD
1
2
EC
O
N+
1
LINE
UPS
LOAD
V
1
2
EC
O
N+
1
LINE
UPS
LOAD
1
2
EC
O
N+
1
LINE
UPS
LOAD
1
2
EC
O
N+
1
LINE
UPS
LOAD
V
1
2
EC
O
N+
1
