Intelligent Paralleling; Intelligent Paralleling Setup; Figure 55 Intelligent Paralleling Settings - Emerson Liebert NXL 250 kVA Operation And Maintenance Manual

3.6

Intelligent Paralleling

Intelligent Paralleling is intended to increase system efficiency and reduce operating hours on the
modules. Intelligent Paralleling will put one or more paralleled modules into standby operation when
the number of redundant modules is above the user specified threshold.
3.6.1

Intelligent Paralleling Setup

Operation
• Enable, Disable
• Default: Disabled
Minimum System Redundancy—Permits setting the redundancy threshold at which Intelligent
Paralleling will operate. This is the minimum Number of Redundant Modules that the system will
allow before bringing one or more modules back to normal operation and terminating Intelligent
Paralleling.
• Min: 0; Max: Number of Modules - 1; Iteration: 1
• Default: 1
Maximum Time Module In Standby—Permits cycling a module that has had Intelligent
Paralleling active the longest with another module currently in normal operation after the selected
amount of time. After the cycle is successful, the new module that has had Intelligent Paralleling
active the longest will go into standby mode. Disable this feature by selecting 0 days.
• Min: 0 Days; Max: 30 Days; Iteration: 1 Day
• Default: 30 Days
Shutdown Delay—Permits choosing how long a module should wait before Intelligent Paralleling is
active and module is in standby.
• Min. 5 minutes; Max. 60 minutes; Iteration 1 minute
• Default: 5 minutes
NOTE
These are global settings. The settings only have to be configured from one module.

Figure 55 Intelligent Paralleling settings

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Liebert NXL 64
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