Studer Innotec XTH 6000-48, XTH 8000-48, XTH 5000-24 operating instructions Auxiliary Contacts

STUDER Innotec Xtender

A battery voltage greater than 1.66 x the nominal voltage may lead to significant damage or destroy the device.

Overheating of the Xtender, Insufficient ventilation, increased ambient temperature or obstructed ventilation may lead to overheating of certain internal components of the unit. In this case, the device will automatically limit its power output as long as this abnormal situation persists.

The Xtender is protected from reverse polarity by means of an external fuse installed on the battery.

6.2.10AUXILIARY CONTACTS

The Xtender has two dry reversing contacts that are potential-free. The status of the contacts in idle mode (deactivated) is indicated by the annotations, N.C. = normally closed and N.O. = normally open.

Maximum contact loads: 230 Vac / 24 Vdc: 16 A or: max. 50Vdc/ 3A These dry contacts are programmed by default for the following functions:

Contact no. 1 (AUX 1): The contact has a function of automatic star of generator (two wire). Contact will be activated when the battery voltage is, during a given time {1247/48}/{1250/51}/{1253/54}, less than the value given by parameter {1246/49/52}. The contact will be deactivated or when the charge cycle as reached absobtion, or when the "Aux. 1 deactivation voltage" {1255} is reached during a pre-determinated time {1256}

The voltage of the battery is automatically compensated according to the instantaneous battery current the same way as it is done for compensation of LVD (see chapter 6.2.8 – p.20) if parameter {1191} is activated

Contact no. 2 (AUX2) : alarm contact by default. It is deactivated when the inverter is out of service or is working at reduced performance, either because of manual control or if there is an operational fault such as overload, undervoltage of the battery, overtemperature, etc.

The functions of the two auxiliary contracts can be modified and programmed variously with the help of the RCC-02/03 control.

If the operator or installer requires different behaviour for the auxiliary contacts, they are both freely and individually programmable depending on the battery voltage and the inverter status and the internal clock.

The intelligent programming of the auxiliary contacts allows many applications to be considered such as:

Automatic startup of the generator (two or three wires) Automatic load shedding of the inverter (2 sequences) Global or individual alarm

Automatic disconnection (load shedding) of the source

6.2.11THE REAL TIME CLOCK

The Xtender has a real time clock that allows the functioning of the auxiliary contacts to be managed, in particular. This clock must be adjusted via the use of the RCC-02/03 remote control.

6.2.12REMOTE CONTROL ON/OFF

The functioning of the Xtender may be interrupted by opening the connection, normally between the two terminal points “REMOTE ON/OFF”, fig. 8a-(7). Operation will recommence when this connection is re-established. The device is delivered with a bridge between the 2 points of this terminal.

It is also possible to control this function according to the different variants indicated in fig. 8b. If a variant is used, the jumpers (6) must be positioned at 1 a-b and 2 a-b.

Operating voltage: Max. 60 V eff. (I max. 30 mA)

In multi-unit configurations (see below) the interruption of operation of just one of the system’s units by the cabled control (7) involves the immediate interruption of operation of the other units of the system. This input can be used, for example, as an emergency stop.

Installation and operating Instructions Xtender V1.3 Page 21