socomec MODULYS Green Power, Installation And Operating Manual

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MODULYS Green Power 

- Ref.: IOMMODGPXX01-GB  00

ENGLISH

OPERATING PROCEDURES

8. 

On line operations

8.1. 

ON LINE operation consists of double conversion operation in conjunction with mains absorption with very low distortion. This 
enables the UPS to supply a voltage that is fully stabilised in frequency and amplitude, regardless of any interference in the mains 
power supply.

ON LINE operation provides three operating modes according to mains and load conditions:

• “Normale” mode.

This is the most frequent operating condition: the energy is drawn from the primary mains power supply and is converted and used 
by the inverter to generate the output voltage to power the loads connected. The inverter is constantly synchronised in frequency 
with the auxiliary mains to enable load transfer (due to an overload or inverter shutdown) without any break in the power supply 
to the load. The battery charger supplies the energy required to maintain or recharge the battery.

• “Bypass” mode.

In case of inverter failure, the load is automatically transferred onto the auxiliary mains without any interruption in the power supply. 
This procedure may occur in the following situations:

-  in the event of a temporary overload, the inverter continues to power the load. If the condition persists, the UPS output is 

switched onto the auxiliary mains via the automatic bypass. Normal operation, which is from inverter, returns automatically a 
few seconds after the overload disappears. 

-  when the voltage generated by the inverter goes is out of tolerances due to a major overload or a fault on the inverter. 

- when the internal temperature exceeds the maximum value allowed.

• “Battery” mode.

In the event of a mains failure (micro interruptions or extended black-outs), the UPS continues to power the load using the energy 
stored in the battery. The mimic panel keeps the user constantly informed on the battery status and on the remaining capacity 
available.

Operation in high effi ciency "Eco-mode"

8.2. 

Operation in ECO-MODE can increase overall efficiency by up to 98% and, at the same time, energy savings can be achieved. If 
the mains supply fails, the UPS will automatically switch onto the inverter and continue to supply power to the load through the 
batteries. Unlike ON LINE operation, operation in ECO-MODE does not provide perfect stability in frequency and voltage; use of 
this mode should therefore be carefully evaluated according to the level of protection required by the application. ECO-MODE is 
not available for parallel connection.

Converter mode

8.3. 

Converter mode enables the UPS to operate as a frequency converter. The available frequency setting for the output is either fixed 
50 Hz or fixed 60 Hz. The AUX MAINS is NOT considered as available in this mode, because AUX MAINS frequency could be 
different from the output frequency. Use 

 or 

 to select the desired frequency, then press 

 to confirm (this setting is only for 

battery start condition or when frequency mode converter is enabled). 

WARNING!

Converter mode has to be set only in case of separated MAINS and AUX MAINS and with AUX MAINS disconnected! 
Do not set in case of common mains as it could damage the load.

Operation with manual maintenance bypass

8.4. 

If the manual bypass is activated (with the appropriate procedure), the load is powered directly from the auxiliary mains, while the 
UPS is in fact excluded from the power supply and can be switched off.

This operating mode is useful when maintenance needs to be carried out on the UPS since service personnel can work on the 
installation without having to cut off the power supply to the load.