Figure 3.10-2 The initiation logic diagram
NOTICE!
Do not set the multiplier setting 46N_Mult_Cur_Str higher than necessary. If the value is
too high, the function may not operate at all during an inrush followed by a fault, no
matter how severe the fault is.
The start value multiplication is normally done when the inrush detection function
(OCR_INR) is connected to the Ena_Mult input by Three phase inrush function
OCR_INR.
 Timer element
The functional module diagram is shown as below:
Figure 3.10-3 Functional module diagram
Once initiation logic is fulfilled and no 46N_Blk signal is activated, the 46N_Str signal is activated.
The timer model is determined by IDMT curves for over quantity protection.
The operation is activated after the operation timer has reached the calculated value. However,
46N_Min_Op_T defines the minimum desired operate time for IDMT. If a drop-off situation
happens, that is, a fault suddenly disappears before the operate delay is exceeded, the operation
will reset after the set value 46N_Reset_T is exceeded.
NOTICE!
The 46N_Min_Op_T setting should be used with great care because the operation time
is according to the IDMT curve, but always at least the value of the 46N_Min_Op_T
setting.
The binary input 46N_Blk can be used to block the function. The activation of the 46N_Blk input
deactivates all outputs and resets internal timers. The binary input 46N_Blk_Str can be used to
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