EC POWER XRGI 20G-TO, Manual

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Version 1.0 - 2012 Manual XrGi 20G-To
Slave unit
The menu displays the number of the secondary XRGI, which the master unit allocated automatically.
Press OK/ESC to scroll through the secondary Load Sharer's four XRGIs:
Function
In installations with 2 to 4 XRGI systems the Load Sharer ensures that the load is shared between the XRGI systems. The requi-
red output is covered with a minimum of systems. This maximises efficiency and hence requires fewer operating hours overall.
The Load Sharer passes on the information of the desired output to the next XRGI system that is ready for operation. If neces-
sary, it then starts up several XRGI systems.
The Load Sharer has a built-in sequential start to ensure that each XRGI system starts separately. This keeps the start-up
current and cable load low.
In a sequential start the first XRGI system is given 10 seconds to start up. If it does not, the Load Sharer waits another 10
seconds before it starts the next unit. When that XRGI system starts, the following system will not be released for at least a
minute. This means that the first XRGI system generates the current to start further systems.
Fig. 2.33.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
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60
50
40
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10
0
Requirement PU3 PU2 PU1
load shared between three systems
Time in hours