Studer Innotec XTH 5000-24 - Manual (Page 14)

STUDER Innotec Xtender
Installation and operating Instructions Xtender V1.3 Page 14
4.5.6 C ONNECTING THE CONSUMERS AT THE 230 V AC OUTPUT
High voltages may be present on the connection terminals (13) and (14). Make sure that
the inverter is deactivated and that there is no AC or DC voltage present on the AC IN
terminals and battery terminals, before proceeding with the connection.
The 230 V consumers must be connected on the “AC OUT” (14) connection terminals with the wire
section conforming to the standards with regard to the rated current at the Xtender output (see fig.
1a). Distribution must conform to the local standards and regulations, and generally, be realised via a
distribution table.
The Xtender terminals are marked in the following way:
N = neutral, L = live
= protective earth (connected to the case of the device).
Due to the source backup function (smart boost) the current at the output of the device
may be higher than the rated current of the inverter. It is the sum of the current supplied by
the additional source and the current supplied by the inverter. In this case, the
dimensioning of the output cables will be carried out by adding the current indicated on the
protection device (H) located on the upstream of the unit, to the nominal current of the
inverter. (See fig. 1a and chap. 6.2.6 – p. 19)
If the assistance function at the source (smart boost) is not used, the calibre of the protection device
for the output (F) will be established at a maximum value equal to the rated current of the inverter, or
at the maximum value of the protection device at the input (H) if this is exceeds the rated current of
the inverter.
An additional earthing terminal (15) is present between the two fastening screws at the
bottom of the unit. It can be used instead of a connection on the input terminals of the
device, particularly when cable sections are used at the output that do not allow use of a
three-wire cable (live, earth and neutral) through the conduit glands of the connection
cables of the input and output (AC IN and AC OUT), or when the earthing of one of the
points of the battery requires a cable section greater than the the PE conductor section of
the AC IN and/or AC OUT line.
4.5.7 C ONNECTING THE AC SUPPLY SOURCES
The Xtender is intended to be supplied by alternative voltage sources such as the public grid or a
generator. Check that the rated voltage of the source corresponds to the rated voltage (34) of the
Xtender specified on the type plate (fig. 3b).
The source must be connected to the input terminals marked “AC INPUT” (13) with sufficient wire
section, depending on the power output of the source, and protected by a protection device of the
appropriate calibre. This will be at the maximum equal to the current I AC in max (35) specified on
the type plate (fig. 3b).
The terminals are marked in the following way: N = neutral, L = live, PE = protective earth
(connected to the case of the device).
4.5.8 W IRING AUXILIARY CONTACTS
These contacts are reversing contacts that are potential-free. The admissible currents and voltages
for these contacts are 16 A: 250 VAC/24VDC or 3 A: 50 VDC max. The representation of the
contact near the terminals corresponds to the status of the contact in idle mode (light indicator (5)
off). The cabling of these auxiliary contracts depends solely on the application and cannot be
described in this manual.
The factory-set functions for these 2 auxiliary contacts are covered in the chapter 6.2.10 – p.21.
4.5.9 C ONNECTING THE COMMUNICATIONS CABLES
The Xtender is equipped with a pair of RJ45/8 connectors that allow information transfer via a
communication bus for different consumer types which have the proprietary protocol of Studer
Innotec. In this network all parties in the network are connected in series (chain).