System Operation
Copyright © 2007-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-50H November 2011
The following system alarms have particular configuration settings:
System Overload alarm. See details on page 47.
Battery Mid-point monitoring. See details on page 57.
Alarm Inhibiting
To prevent a single series of faults triggering multiple alarms, an alarm is inhibited by another
active alarm if the conditions that trigger the inhibiting alarm include the conditions that trigger
the inhibited alarm. However, the inhibiting alarm only inhibits if it is set to a level of severity
that is equal to or higher than the alarm being inhibited.
For example, Partial AC Fail is inhibited if AC Fail is active and AC Fail is set to a level of severity
that is equal to or higher than Partial AC Fail.
Alarm Descriptions on page 109 lists the inhibiting alarms that can inhibit each alarm.
System Overload Alarm
The System Overload alarm activates if the total system load exceeds a percentage of the
installed rectifier capacity for a specified period (or if the total system load exceeds a percentage
of the installed rectifier capacity minus the capacity of the largest rectifier if System Overload
Type is set to Redundancy). This indicates that additional rectifiers need to be installed. This is
useful at sites where there is ongoing installation of additional load equipment.
► To enable System Overload
In DCTools/Web go to: Alarms > Alarm States. Enable and configure System Overload alarm.
See System Alarm Configuration on page 46.
Go to: Alarms > Alarm Configuration. Configure the System Overload alarm parameters. See
details on page 48.
Information
The following information is available about System Overload.
The output power of the system as a percentage
of the total nominal power the system is capable
of supplying.
SC200: Analogs
DCTools/Web: Analog
Inputs
To Next Page
Loading...
