Programming

5.3Programming Parameters for Advanced Parallel Operation.

To use the advanced parallel functions the following parameters must be programmed:

1.“Station number”

2.“Highest station address”

3.“Advanced power management”

4.“APM test mode active”

5.“Battery connection”

5.3.1 Description of Settings.

1.“Station number”

Valid station numbers: 1-9 stating the UPS parallel address in system.

2.“Highest station number”

Valid station numbers: 2-9 stating the number of UPSs in system.

3.“Advanced power management”

“Disabled”: Advanced Power Management is inactive.

“PARALLEL+1”: Advanced Power Management is activated when the system operates as PARALLEL N+1, meaning that one system can be isolated without overloading the remaining systems (N systems/UPSs).

“REDUNDANT+1”: Advanced power management is activated when the system operates as REDUNDANT N+1, meaning that one system can be isolated without overloading the remaining systems (N systems/UPSs) with one spare system.

4.“APM test mode active”

“No”: Stand-by-time will be 24 hours - on-line time will be 48 hours. (xN systems).

“Yes”: Stand-by-time will be 1 min. - on-line time will be 2 min. (xN systems).

5.“Battery connection”

“Separate”: Separate battery for this UPS.

“Common”: Common battery in a parallel system.

NOTICE!

“Common”: Common battery in a parallel system. When this setting is chosen, the highest battery temperature that can be found in the parallelled systems is used (for charge voltage compensation).

NOTICE!

Common battery pack is a technical possibility.

However, APC recommends separate battery pack due to a higher safety degree in connection with redundant/parallel operation.

The UPS system is designed for both situations.

5.3.2 Programming Example

Example with four systems in parallel with separate batteries.

Program the station addresses 1-4: 1 for UPS 1, 2 for UPS 2, 3 for UPS 3, and 4 for UPS 4.

All UPS systems have to be programmed to “Highest station address” :4.

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Installation Guide APC Silcon 240-320kW 480V UPS

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American Power Conversion 240-320kW manual Programming Parameters for Advanced Parallel Operation, Description of Settings