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ADJUSTMENT OF THE COMBI XTENDER 

The Xtender inverter/charger has been designed to 

ensure that all basic functions of an energy management 
system work completely independently. In its original 

version, no adjustment is usually required. 

 

 

Nevertheless, in certain installation conditions, it may be necessary to adjust some operating 
configurations. This is why the RCC remote control gives access to the adjustment of many 

configurations and within a range largely exceeding the usual values. Use these adjustment options 

with care and only with due specialist knowledge. Changing configurations is not the responsibility 
of Studer Innotec. Please refer to the chapter on limitation of responsibility for more information on 

this topic. 

When there is a system to which several Xtenders are connected, the changing of a configuration 
is global. It will be applied to all the Xtenders connected together. To carry out adjustments on a 

single Xtender, it is necessary to remove the connection cables and only keep the connection 

between the remote control and the Xtender on which the different adjustment is being carried 
out. It is thereby possible to configure each Xtender of a system independently. Once the 

configuration has been carried out, the original connection can be re-established. 

 

 

Note: If you have carried out an individual configuration, once a configuration has 

been changed, the system reconnected by the data connection cable modifies 

this configuration for all the Xtenders connected. 

The functions described below refer to the EXPERT level. Depending on the user level selected, 

access to all the functions may not be possible. Refer to the chapter on adjusting the user level of 
the remote control for more information on this subject. 

The two auxiliary relays (dry contacts) of the inverter-charger Xtender are already programmed 

with factory settings and can be activated with various functions. They react to different signals. 
The factory settings depend on the Xtender models. 

For more information on the auxiliary contacts pre-set functions, please see the inverter-charger 

Xtender manual. 
 

 

Caution, if your installer or supplier has done pre-settings, these pre-set functions 

may have been changed. 
To check the different programmings, use the function backup of the Xtender 

parameters on the SD card, described there above in this manual. 

The Xtender configurations are divided into several categories: 
•  Basic configurations 

•  Battery and its charge cycle configurations 
•  Inverter configurations 

•  Combi configurations (inverter/charger) 

•  First auxiliary contact configurations 
•  Second auxiliary contact configurations 

•  Auxiliary contact extended function configurations 

•  Three-phase or parallel operation configurations