ABB SACE Emax 2 Series Operating Instructions Manual page 65

2I Protection
t
I31
62 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Function
If the current of one or more phases exceeds threshold I31 and a trip event is present, the protection
transmits the TRIP command after a non-programmable fixed time.
2I
To check and simulate the trip times in relation to all the parameters, please consult:
• summary table of the protections with the operating characteristics (page 95)
• the graph with trip curve (page 102)
Parameter Description
Activates/deactivates the protection and its availability in the
I
Enable
parameters menu.
Activates/deactivates the function
ZoneSelectivity
Protection enabling renders 2I Mode section available in Advanced - Functions menu, where the protection
activation event can be configured:
Parameter Description
Two alternative modes are available:
• Dependent function, the protection is activated if the
Activation
programmed activation event has occurred, this configuration
makes the function and delay parameters available;
• Activated, the protection is always activated.
The activation event between the input contacts of Ekip
Signalling 2K, the statuses of the unit (open/closed) and the
Custom function can be selected
Function
Protection activation delay calculated from the presence of the
activation event onwards.
The value is given in seconds and can be set within the range: 0 s
Delay ON
÷ 100 ms, in 0.01 s steps.
Protection deactivation delay calculated from disappearance of
activation event onwards.
The value is given in seconds and can be set within the range: 0 s
Delay OFF
÷ 15 s, in 0.01 s steps.
RELT - Ekip signalling 2K-3
If the RELT module is present a dedicated command (RELT Wizard) will be displayed. This will program the
2I protection and other related parameters; for details see page 244.
Commands by remote control
Two further temporary protection activation/deactivation commands are available when the unit is
connected to one or more Ekip Com modules:
• 2I Mode ON: activates the protection.
• 2I Mode OFF: deactivates the protection.
For further details consult the document
NOTE: if the protection has been activated by command 2I ON Mode, it is deactivated by
command 2I OFF Mode or when the unit shuts down
Signallings
When protection 2I is activated, the message " 2I active " appears in the diagnostic bar and in the Alarm List
page, and the alarm led will be on steady.
NOTE: if at least two of the selectivity S, S2, I, 2I and MCR
are enabled, the input and output are shared with the OR
function; it is sufficient that even a selectivity is activated to
stimulate inputs and outputs
NOTE: Ekip Connect allows the Custom function to be
customized so as to associate the activation event with up
to eight statuses in AND or OR configuration
NOTE: the protection trips if the event is present for longer
than the set time lag
NOTE: protection deactivates if event is not present for
longer than set delay
1SDH002031A1101
ABB | SACE Emax 2
Default
OFF
OFF
Default
Dependent
function
Disabled
0 s
15 s
Ekip Touch - Protections
2 - Standard Protections