LEGRAND KEOR T EVO 10-60 KVA, Руководство по установке и эксплуатации, Страница: 16 / 94

Important Notices!
Thank you for choosing LEGRAND UPS System to supply your Critical Application.
This manual contains important information about commissioning, usage and technical properties of the
UPS. It also contains safety information for operator and instructions to secure your critical load. Applying
the recommendation detailed in this manual is necessary to use UPS safely and correctly.
The manufacturer reserves the rights to change the t echnical specifica tions
and design without notice.
LEGRAND reserves the rights to change the information in this document
without notice. Refer to
http://ups.legrand.com/
web site to dowload last
release and translations.
Units that are labelled with a CE mark comply with the Standard: EN 62040-1 and EN 62040-2.
Read the manual completely before working on this equipment!
Keep this manual in UPS’s front cover’s pocket for easy consultation!
Reproduction, adaptation, or translation of this manual is prohibited without prior
written permission of LEGRAND Company, except as allowed under the copyright laws.
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4.4. Eco Mode
Eco Mode Operation can be chosen through the Commands Menu.
The purpose of using this mode is to increase the
efficienc y up to 98% and to provide energy saving; since
the loads are supplied by the mains voltage directly, the loads are unprotected against any possible future
risks. (e.g. surge voltage, etc.). In devices with auxiliary mains supply; energy is drawn from the auxiliary
mains supply.
As long as the mains voltage and frequency within the limits, the load is supplied by the auxiliary voltage
in a controlled manner; double conversion chain is on standby while ensuring the recharge of the batteries.
Eco Mode Operation does not provide perfect stability in frequency/waveform/rms value
of the output voltage as in Online Operation. Thus, the use of this mode should be carefully
executed according to the level of protection required by the application.
This procedure may only be executed by trained Personnel.
During Maintenance Bypass operation; in case of any mains voltage interruption occurs,
all loads on the output will be deenergized. Maintenance Bypass Operation should not be
preferred for long time use.
4.7. Operation with External Maintenance Bypass (Optional)
The external manual maintenance bypass may be installed in the general distribution panel where
KEOR T EVO is installed, or in an external bypass panel that is supplied on request.
This operating mode enables the user to isolate the electronic circuitry of the UPS from the mains voltage
and the load without interrupting the load operation by connecting the loads directly to the bypass utility
supply. This feature is useful while performing maintenance or service and should only be executed by
trained Personnel.
Maintenance Bypass enables the user to isolate the electronic circuitry of the UPS from the mains voltage
and the load without interrupting the load operation by connecting the loads directly to the bypass utility
supply. This feature is useful while waiting servic e staff and should only be e xecuted by trained Personnel.
UPS switches to another mode in case the mains voltage or frequency goes beyond the Bypass limits.
UPS returns to Eco Mode Operation when the auxiliary voltage returns to the limits.
Eco Mode Operation does not provide electronic short circuit current limitation. If a
short circuit occurs downstream distribution panel supplied by the UPS, the magnetic
protection off the Bypass line MCCB may act if not selective with downstream protection
and all loads will be de energized. Check discrimination applies between upstream and
downstream switchboard.
4.5. No Operation
This mode is used to make settings through Front Panel or by Service Software. To start-up UPS in No
Operation mode; all the circuit breakers must be at “0” position except
Q1
Input circuit breaker and
Q4
Bypass circuit breaker. In this mode UPS does not apply output voltage to supply the loads. After all settings
done during No Operation Mode, UPS should be restarted for the new service settings to be saved and
valid. It is not necessary to restart UPS for user settings to be valid.
4.6. Operation with Maintenance Bypass