Load shedding or sequential shutdown, Sequential startup, 1 load shedding or sequential shutdown – MGE UPS Systems 66102 User Manual

Page 48: 2 sequential startup

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T H E U N I N T E R R U P T I B L E P O W E R P R O V I D E R

Network Management Card – User Manual

34003991EN/GA

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Start shutdown main

output

Shutdown duration

main output

Utility failure

Shutdown duration 1

Shutdown
duration 2

Shutdown duration 3

Utility

Main output

NSM 1 on main

output

NSM 2 on outlet 1

NSM 3 on main

output

Shutdown after:

Utility restore

Start shutdown

outlet 1

Shutdown

duration outlet

1

Outlet 1

5.1.3 Protection of a server connected to a controlled outlet

Network Shutdown Modules (NSM) starting with version 3.0 are compatible with the controlled outlets.

After connecting the server electrically to one of the controlled outlets, the NSM must be informed of the outlet number to which it is

connected.

Refer to the documentation of the NSM available on the internet site

www.mgeups.com

section “

Download area – embedded Software

.

5.1.3.1 Load shedding or sequential shutdown

It is possible to optimise backup time by shutting down non-priority equipment or sequencing the shutdown of several devices.

Two shutdown criteria are possible:

Z

Shutdown of outlets after a set battery back-up time (After)

Z

Shutdown of outlets at a given battery discharge level (if battery capacity under)

It is possible to specify values for both criteria. The first criterion reached will initiate server shutdown.

5.1.3.2 Sequential startup

It is possible to delay outlet power-on to reduce inrush currents on startup or to sequence the startup of several devices.

Controlled outlet startup after a given time is based on startup of the main outlet.

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