Remote Entry Controlled By An Auxiliary Relay; Multi-Unit Configuration - Xtender XTS 900-12 User Manual

7.7.3 Remote entry controlled by an auxiliary relay

It is possible to wire together the auxiliary contacts Aux 1 and Aux 2 so that the function programmed
on the remote entry is activated by the state of the auxiliary relay.
For example, if we wish to prohibit the transfer relay while the battery is above a certain state of
charge, we can program the activation/deactivation of the auxiliary relay by the state of charge
(see chap. 14.11.9 of the RCC-02/-03 manual) and we wire the Normally Open (N.O.) contacts of the
auxiliary relay that is programmed to the remote entry. The remote entry should be programmed to
prohibit the transfer relay while the parameter "remote entry active closed {1545}" is true. (See chap.
14.13.1.1).
It is also possible to link the auxiliary relay Aux 1 to the remote entry without physically wiring them
together. This is done by activating parameter {1578} as explained in chap. 14 in the RCC-03/-03
manual.
This option is particularly useful in the XTM model Xtenders that do not have the remote entry without
the external module RCM-01 (see chap 9.3) and the XTS model Xtenders that do not have the remote
entry nor the auxiliary relays without the external module ARM-02 (see chap. 9.5).
In a multi-Xtender installation, the status of the remote entry of each Xtender is transmitted
to all the other Xtenders. If a function is programmed on the remote entry of one of the
Xtenders, it will be applied to all the Xtenders.
8

MULTI-UNIT CONFIGURATION

Several Xtenders can be used in the same system, either to create a three-phase system or to
increase the power output of a single or two phases. The implementation of this configuration requires
particular precautions and it must be installed and commissioned by qualified personal only.
When a multi-unit system is commissioned, the software version of every unit will be
automatically checked and units may refuse to start in case of incompatibility. If so, an
upgrade of every unit is required with the RCC-02/-03 to the most recent software version
available by the manufacturer. (Read the RCC-02 user's manual to perform this operation).
In Multi-unit systems, every Xtender in the system shares the same battery bank.
Separate battery banks are not allowed.
In these multi-unit systems, the units must be connected via a communication bus by a cable (art.
no. CAB-RJ45-8-2) of a maximum length of 5 metres.
Various application examples are described from fig. 12 to fig. 19 of Appendix 1.
It is important to read and adhere to the descriptions associated with each of the figures
mentioned above.
In multi-unit system, it is recommended to use the automatic LVD dynamic compensation.
See parameter {1532}.
In configuration with several Xtenders, each unit is controlled independently using the ON/OFF push
button (41). When the on/off control is given via the RCC-02/-03 remote control, it is applied
simultaneously to all units.
User manual V4.6.0
Studer Innotec SA
Xtender
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