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5. operating
5.1.
Commissioning
5.1.1.
Controls before commissioning
• Check that the EPo connector with the cable (Fig.A), is inserted
into plinth located in the rear side of the equipment.
• Make sure that all the connections have been made properly
and are sufficiently tight, respecting the labelling of the equip-
ment and the instructions of chapter 4.
• Check that the UPS is turned off (shutdown).
• be sure that all the loads are turned «off».
Turn off the connected loads before starting up the UPS ,
and start up the loads one by one, when the UPS is started
up only. before shutdown the UPS, check all the loads are out of
service (off).
• it is very important to proceed in the established order.
• For UPS view, see figures 1 to 3.
• Figures 16 and 17 shows a manual bypass panel for a parallel
system, in a conceptual way (4 to 10kVA models only), valid for a
single equipment by adapting the quantity of switches.
5.2. UPS start up and shutdown
5.2.1. Start up and shutdown of the UPS
• Check that the power supply connection is correct.
• Press over the start up key for more than 3 seconds, the
acoustic alarm will beep for 1 sec. and the UPS will start up.
• After a few seconds, the UPS establishes on "normal mode". if the
mains voltage is wrong, the UPS will transfer to "battery mode",
without breaking the feeding at the output power blocks.
Fan/s depending on the model, will be started up and the lCD
will show the "KESS" brand logo.
After the initial test of the equipment, it is displayed the main
screen.
• Start up the load/s, do not overload the equipment.
5.2.2. Start up of the UPS, without mains
• Press over the start up key for more than 3 seconds, the
acoustic alarm will beep for 1 sec. and the UPS will start up.
Fan/s depending on the model, will be started up and the lCD
will show the "KESS" brand logo.
After the initial test of the equipment, it is displayed the main
screen.
• After a few seconds, the UPS establishes on "battery mode". if the
mains is restored, the UPS will transfer to "normal mode", without
breaking the feeding at the output power blocks.
• Start up the load/s, do not overload the equipment.
5.2.3. UPS shutdown, with mains present
• Shutdown the load/s.
• Press over the start up key for more than 3 seconds to shut-
down the inverter. The acoustic alarm will beep for 3 sec. The
equipment will be established on "bypass mode.
• when finishing the previous action, there is still voltage at the
UPS output.
To break the power supply at the UPS output , turn "off" the cir-
cuit breakers of the UPS switchgear panel.
After a few seconds the lCD is shutdown and the equipment will
be out of service completely.
5.2.4. UPS shutdown, without mains
• Shutdown the load/s.
• Press over the start up key for more than 3 seconds to shut-
down the inverter. The acoustic alarm will beep for 3 sec. The
equipment will leave the output power blocks without voltage.
After a few seconds the lCD screen is shutdown and the equip-
ment will be out of service completely.
5.3. operative for a parallel system (4 to 10
kVA models only)
• The following operative, it is considered for equipments with the
configuration preset from factory.
• Check that the load/s and output circuit breaker switches from
protection panel, are in "off" position.
• Turn "on" the input circuit breaker switches from protection
panel.
• in equipments with separate static bypass line, turn "on" the by-
pass circuit breakers from protection panel.
UPSs supply output voltage through the bypass. Check the lCD
from control panel, in case there was any warning or error infor-
mation. Check the output voltage at the power blocks of each
UPS separately, in order to check the voltage difference is below
1V among them. if the difference is higher than 1 V, double check
the wiring and associated instructions.
• Press over the start up key for more than 3 seconds, the
acoustic alarm will beep for 1 sec. and the UPS will start up. All
UPSs will transfer to "normal model”.
Measure the output voltage on each UPS separately, to check
the voltage difference is under 0,5 V. in case the difference were
higher than 1 V, the UPSs have to be set (contact the KESS Sup-
port-Team).
• Press over the start up key for more than 3 seconds in any UPS
and all of them will be shutdown, at the output will be voltage
supplied through the bypass.
Turn “on” the output circuit breaker switches from the distribu-
tion panel and the complete parallel system will supply output
voltage through the bypass.
• Press over the start up key for more than 3 sec. in any of the
UPSs and all of them will start up., finally the parallel system will
be working on "normal mode”
• Start up the load/s.