Apc DP300E User Manual download pdf (Page 21)

21User Guide Silcon DP300E Series 480V 120-160kVA

7OA0003 US rev. 03

Programming Parameters

4.5 Parallel programming/operation

Programming parameters for advanced parallel operation

To use the advanced parallel functions the following parameters must be pro-

grammed:

1. “Station number”

2. “Highest station address”

3. “Advanced power management”

4. “APM test mode active”

5. “Battery connection”

Description of settings.

1. “Station number”

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

2. “Highest station number”

• Valid station numbers: 2-9 stating the number of UPS’s in the system.

3. “Advanced power management”

• “Disabled”: Advanced power management is inactive.

• “PARALLEL+1”: Advanced power management is activated when the system

operates as PARALLEL+1, meaning that one system can be isolated without

overloading the remaining systems (N systems/UPS).

• “REDUNDANT+1”: Advanced power management is activated when the

system operates as REDUNDANT+1, meaning that one system can be

isolated without overloading the remaining systems (N systems/UPS) with

one spare system.

4. “APM test mode active”

• “No”: Stand-by time will be 24 hours - on-line time will be 48 hours * N

systems.

• “Yes”: Stand-by time will be 1 min. - on-line time will be 2 min. * N systems.

5. “Battery connection”

• “Separate”: Separate battery for this UPS.

• “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 compensating).

Programming guide.

Example with 3 systems in parallel with separate batteries.

• Programme the station addresses 1-3: 1 for UPS 1, 2 for UPS 2 and 3 for UPS 3

• All UPS systems have to be programmed to “Highest station address” = 3.

• If APM should not be tested, “APM test mode active” must be “NO”.

• If a system is isolated due to service the station numbers must be reprogrammed

for the remaining active systems starting with number 1 and ending with max.

number of active systems. No numbers must be left out in this sequence. Fur-

thermore “Highest station address” must be changed to number of active UPS’s

in parallel.

NOTE:

Common battery pack is a

technical possibility.

However, APC recommend

separate battery pack due to a

higher safety degree in con-

nection with redundant/parallel

operation.

The UPS system is prepared

for both solutions.

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Apc DP300E User Manual Page 21

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