STUDER Innotec Xtender
Installation and operating Instructions Xtender V1.3 Page 16

6 Description and functioning

The Xtender is a sine wave inverter with a battery charger. It has been developed for use as a stand-
alone installation to supply AC voltage (not connected to the grid) or as a continuous supply.

6.1 Circuit diagram

RJ45
AC IN
NN
BATTERY
4x2,7MΩ
Temp.
max 300m
AC OUT
DSP
RJ11
CAN bus
L1 L2 L3 AUXILLARY
C
ON
T
A
C
T
XTH-5000-24
Multimode Pow er Center
10nF 10nF
L
2,2nF
100nF
8p
8p Bus termination
6p
T
ORemote
On/Off
L
DCAC
Aux2Aux1
RCC-02
2,2nF 2,2nF
2,2nF
K1
K2
K3 K4

10

9

14

13

11

12

2

47

6

3

16

17
a

b

f

BTS-01
e

f

t

6.2 Description of the main functions

6.2.1 INVERTER
The Xtender is equipped with a high-performance inverter which supplies a perfect and very precise
sine wave. Any unit designed for the 230 V/50 Hz electrical grid may connect to it without any
problem, up to the rated power out of your Xtender. The inverter is protected against overloads and
short-circuits.
Thanks to the largely over-dimensioned performance level, loads of up to three times greater than
the Xtender’s rated output can be faultlessly supplied for short periods of use, thus allowing motors
to be started up without any problem.
When the Xtender is operating the LED “ON” (43) is glowing.
When the Xtender is in inverter mode, the LED “AC out” (46) is glowing. If it flashes, the inverter is in
“load search” mode (see following chapter “Automatic load detection”).
6.2.2 AUTOMATIC LOAD DETECTION
In order to save battery energy, the Xtender inverter stops and automatically goes into load search
when the detected load is lower than the sensitivity set by the configuration {1187}. It automatically
goes back into operation when a power consumer greater than this value demands it. The indicator
(46) flashes if the inverter is in “load search” mode, which also indicates that the AC voltage is
present at the output in an intermittent form.
The detection threshold for the absence of loads can be adjusted according to the configuration