GE Industrial Solutions EntelliGuard TU Trip Units - Manual (Page 16)

EntelliGuard TU Trip Units: UL/ANSI Models DEH-4567B
General Information
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command to clear the waveform data in trip unit
memory.
Table 1-2: Trigger WaveForm Capture Events
Event Waveform Capture Setpoint
Manual trigger over
communications ON, OFF
Over current (GF, ST, LT,
Inst) ON, OFF
Protective relays ON, OFF
Current alarm 1 ON, OFF
Current alarm 2 ON, OFF
Event Logging
The trip unit keeps a log of the last 10 events:
• Over current trips
• Protective relay trips
• Shunt trip (PBII and Global EntelliGuard G Trip Units Only)
• Under voltage Release trip (PBII and Global EntelliGuard
G Trip Units Only)
• BIM Trip Unit Mismatch - Breaker Interface Module
(EntelliGuard G only)
NOTICE
SOFTWARE REVISION 08.00.23 AND GREATER:
If a BIM read fails the trip unit will not open the breaker,
instead it will modify its internal configuration to match the
AIC rating of the least capable breaker in the family. The
trip unit will periodically read the BIM after that, and on a
successful match the original settings will be restored.
While the BIM error persists a BIM Err message will be
displayed on the LCD.
The following information is stored with each event:
• RMS currents
• Phase
• Type of trip
• Trip counter
• Time and date stamps (Trips are logged under self
power without time stamp. Events with time stamps are
only logged when +24 VDC control power is available.)