ABB SACE Emax E1.2, Operating Instructions For The Design Engineer

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ABB | SACE Emax 2
64 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A Ekip Touch protection trip unit | 9 - Touch protections
I Protection
I
I3
t
I
Path
Main page - Menus - Protections
Function
I protection protects against instantaneous short circuit.
When the activation threshold is exceeded, the protection trips within a fixed time. The user can set the
intervention threshold.
Parameters
Here is a list of the available parameters:
Parameter Description
Enable
To activate/deactivate the protection.
IMPORTANT: it can be only activated if the MCR protection is Off.
Threshold I3
It defines the current value that activates the protection when exceeded (with
reference to the figure above, the threshold is the part of the curve parallel to the
y-axis).
It is represented both as an absolute value (Ampere) and as a relative value (In,
nominal value defined by the Rating Plug).
IMPORTANT: The I3 threshold set must be higher than the I2
threshold. An incorrect configuration gives an error on the display and
the programming session doesn’t conclude, with consequent rejection
of the changes made to the parameters.
I protection has Startup Enable , see page 71.
Via Ekip Connect it is also possible to access the blocking functions , see page 72.