Brochure

PowerPact H-, J-, and L-Frame Circuit Breakers
Energy Management
68
02/2016 © 2011–2016 Schneider Electric
All Rights Reserved
Additional Technical Characteristics
Measurement accuracy of the entire measurement system, including the sensors:
• Current: +/- 1%
• Voltage: +/- 0.5%
• Power and energy: +/- 2%
• Frequency: +/- 0.1%
Operating-Assistance Functions Characteristics
Micrologic Trip Unit Alarms with Time-Stamping
Alarm Types
The user can assign an alarm to all Micrologic A or E trip unit measurements or events:
• up to 12 alarms can be used together:
— two alarms are predefined and activated automatically:
Micrologic 5 trip unit: overload (I
r
)
Micrologic 6 trip unit: overload (I
r
) and ground fault (I
g
)
— thresholds, priorities and time delays can be set for ten other alarms.
• the same measurement can be used for different alarms to precisely monitor certain values, e.g.
the frequency or the voltage
• alarms can also be assigned to various states: phase lead/lag, four quadrants, phase sequence
selection of display priorities, with screen displaying a window showing high priority alarm
• alarm time-stamping.
Alarm Settings
Alarms cannot be set using the keypad or the front display module. They are set through the
communication network with the PC. Set-up includes the threshold, priority, activation delay before
display and deactivation delay. It is also possible to reprogram the standard assignment for the two
SDx relay outputs to user-selected alarms.
Alarm Reading
Remote alarm indicators:
• reading on the front display module or on a PC through the communication network
• system remote indicators using SDx relay with two output contacts for alarms
• Micrologic trip unit built-in LCD display
Histories and Event Tables
Micrologic A and E trip unit have histories and event tables that are always active.
Three types of time-stamped histories
• Tripping due to overruns of I
r
, I
sd
, I
i
, I
g
: last 17 trips
• Alarms: last 10 alarms
• Operating events: last 10 events
Each history record is stored with:
• indicators in clear text in a number of user-selectable languages
• time-stamping: date and time of event
• status: pick-up / drop-out