Version: 2020-09-04
164
Copyright of the European Union is effective (Copyright EU) (c) 2019 GENEREX Systems GmbH, Hamburg, Germany, All rights reserved
TEL +49(40)22692910 - EMAIL generex@generex.de - WEB www.generex.de (This and all other product datasheets are available for download.)
Number of batteries
Define the total number of batteries within your BACS installation.
As an example, if you use 40 batteries inside your system, enter 40. Since each battery gets its own BACS module, The BACS
webmanager will search for a total of 40 BACS modules, starting with ID 1. The ID 0 is not allowed during normal operation.
Number of battery strings
Number of battery strings defines a logical assignment of the configured batteries in combination with built-up batteries. Among other
things, the number of strings is defined by the physical wiring of the batteries. As an example, 20 batteries may be installed into one
positive string and 20 into the according negative string. Such a middle point battery setup requires in BACS a configuration as “2
strings“ since the charger handles the positive and the negative string
separately. Other installation types would be in this case of 10
batteries in string 1, 10 batteries in string 2, etc.
Acccording to this context, it is important the physical wiring of the
batteries match the logical structure of the strings. The BACS system
uses the sequential numbering of the BACS modules during
initialization and divides them by the number of battery strings..
If arbitrarily connecting the BACS modules to the batteries and
activate BACS, BACS will logically initialize the BACS modules into a
string with IDs 1-10, followed by IDs 11-20, ...
Physically the BACS modules may form up a shredded string that is
logically correct. As a consequence, BACS would receive wrong
readings and possibly not even start: The strings will be displayed
separately in the BACS monitor and treated accordingly during
regulation.
When assigning the BACS modules, pay attention to the position or
numbering of the batteries in the battery compartment itself to match the logical assignment with the current installation: Ideally battery
no. 1 also received the BACS module with the number 1.
Something more to take an eye on
For technical reasons, it is not possible to connect and manage an unlimited number of batteries to a single string. From 50 batteries
onwards, we recommend to "split" the BACS bus, ie to define two different cable strings per definition in order to keep the cable length
as short as possible.
Note
With String Names it is possible to enter a freeform label for the battery string. you enter a name for up to 16 battery strings before
configuring the BACS modules. However, the number of strings will be define at Number of battery strings. that will be shown. Entering
a name does not automatically increase the number of battery strings.
Helpfull information about the BACS system
Battery manufacturer and type
Enter the designation as free form text. If usefull, add some information about it's function or the intention of this battery system or in
special cases chemistry used for this battery room. If an incident occurs and rapid interaction is mandatory, this information can
increase the average response time. On the other hand, misleading or poorly documented terms can cost valuable time.
Battery installation date
The battery installation date indicates the date of initial battery installation. Since a system can be upgraded with BACS at any time, it is
important to be familiar with the difference of a battery installation date and the installation date of BACS.
You will usually find the battery installation date on the battery itself as "date of manufacture"
Contact person and phone contact
In case of maintenance work or incidents, responsible staff can be contacted to shorten response time.
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