FANOX SIL B, User Manual

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The function settings are as follows:
Function Description Minimum Maximum Step Unit Default
67_1
67_2
Inverse-time phase directional overcurrent
Permission - - Yes/No - No
Curve - - (1*) - IEC Extremely inverse
Dial 0.05 2.20 0.01 - 1.00
Pickup 0.10 30.00 0.01 I rated 5.00
Operating time 0.02 300.00 0.01 s 0.02
Directionality - - Yes/No - No
Polarization voltage 4.00 170 1 V 5
Operating angle 0 359 1 º 90
Half-cone angle 0 170 1 º 90
(1*) IEC Inverse, IEC Very inverse, IEC Extremely Inverse, IEEE inverse, IEEE very inverse, IEEE
extremely inverse, definite-time
If the "definite-time" option is selected for the curve setting, the unit behaves as an instantaneous
directional overcurrent unit. In this case, the unit’s operating time is adjusted using the "Operating time"
parameter.
If an inverse, very inverse or extremely inverse curve is selected in the curve setting, the operating time
is a function of curve, dial and pickup adjustments.
If the unit operates with definite-time, the function starts up at 100% of the adjusted pickup and resets
at 95%.
If the unit operates with a curve, the function starts up at 110% of the adjusted pickup and resets at
100%. Resets are instantaneous in both cases.
The actuation time is accurate to ±5%, o ±30ms, whichever is higher, of the theoretical actuation time.
The curves that are used are IEC 60255-151 and IEEE, which are described in the corresponding
section.
The activation level for the polarization voltage is 100%, and the reset level is 95%. Resets are
instantaneous.