Page 61 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
2I Protection Function
If the current of one or more phases exceeds threshold I31 and a trip event is present, the protection
t transmits the TRIP command after a non-programmable fixed time.
I31 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 92)
• the graph with trip curve (page 99)
Parameter Description Default
I Activates/deactivates the protection and its availability in the
Enable OFF
parameters menu.
Establishes the value that activates the protection.
Threshold I31 The value is given as both absolute value (A) and relative value (In) and 1,5 In
can be set within the range: 1.5 In to 15 In, in 0.1 In steps

Protection enabling makes the 2I Mode section available in the Advanced - Functions menu, where the
protection activation event can be configured:
Parameter Description Default
Two alternative modes are available:
• Dependent function: the protection is activated if the programmed
Activation activation event has occurred; this configuration makes the function Dependent
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 Disabled
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
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 to
Delay 0 s
100 s, in 0.1 s steps
NOTE: the protection trips if the event is present for longer than
the set time lag

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 220.
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 ON Mode: activates the protection
• 2I OFF Mode: deactivates the protection
For further details consult the document 1SDH001140r0001.
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.

59 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A Ekip Touch - Protections | 2 - Standard Protections