2.10 EVENTS (AVAILABLE IN OPTION 1 AND OPTION 2 MODELS)
MIFII stores an historical record with the last 32 events. Each event contains the event description, date and time (4 ms
accuracy), the current values in phases and ground at that moment, and a summary of the status signals that can produce
events, and whether they were active or not in that moment.
In EnerVista MII SETUP there is an “EVENTS” menu, where the user can check how many events have been produced
since the last time the Events were deleted. If the number of events produced is higher than 32 (maximum number of
events stored), this means that only the last 32 will be stored.
This event record is stored in a capacitor backed up RAM memory. Events functionality in MIFII is performed via the
EnerVista MII SETUP software.
Inside the ADVANCED SETTINGS group, there is a sub-group called EVENT MASKS, from where the different causes that
can produce events can be masked. They are detailed in the SETPOINT – SETPOINT – ADVANCED SETTINGS – EVENT
MASK section. The following table shows a list of all possible events.
MIFII relay with option C stores an historical record with the last 100 events. Each register contains the event description,
date and time (4ms accuracy), the current values in phases and ground at that moment and a summary of the status
signals tha can produce events and whether they were active or not in that moment.
Table 2–1: LIST OF EVENTS
DESCRIPTION OPTION 1 OPTION 2
50P1 Pickup/Drop out Yes
50P2 Pickup/Drop out Yes
50G1 Pickup/Drop out Yes
50G2 Pickup/Drop out Yes
51P Pickup/Drop out Yes
51G Pickup/Drop out Yes
49 Alarm Pickup/Drop out Yes
50P1 Trip Yes
50P2 Trip Yes
50G1 Trip Yes
50G2 Trip Yes
51P Trip Yes
51G Trip Yes
49 Trip Yes
General trip Yes
50P1 Trip enable/disable by digital input Yes Yes
50P2 Trip enable/disable by digital input Yes Yes
50G1 Trip enable/disable by digital input Yes Yes
50G2 Trip enable/disable by digital input Yes Yes
51P Trip enable/disable by digital input Yes Yes
51G Trip enable/disable by digital input Yes Yes
49 Trip enable/disable by digital input Yes Yes
General trip enable/disable by digital input Yes Yes
Protection status in service/out of service Yes Yes
Digital output 1 active/non active Yes Yes
Digital output 2 active/non active Yes Yes
Digital output 3 active/non active Yes Yes
Digital output 4 active/non active Yes Yes
Digital input 1 active/non active Yes Yes
Digital input 2 active/non active Yes Yes
Settings change disabled by digital input active/non active Yes Yes
Trip operation by digital input Yes Yes
Trip operation by command Yes Yes
Auxiliary digital output latch reset Yes Yes