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92
Two step definite and inverse time
delayed phase overcurrent protection
(TOC2)
•
The terminal is in TEST mode (TEST-ACTIVE is high) and the function has been
blocked from the HMI (BlockTOC2=Yes).
•
The input signal TOC2--BLOCK is high.
The input signal TOC2-BLKTRLS, blocks tripping of the low current step. The step is
also blocked by the setting Operation Low = Off
The input signal TOC2-BLKTRHS, blocks tripping of the high current step. The step is
also blocked by the setting Operation High = Off
The input blocking signals can be connected to a binary input of the terminal in order
to receive a block command from external devices or can be software connected to other
internal functions of the terminal itself in order to receive a block command from inter-
nal functions. Through an OR gate it can be connected to both binary inputs and internal
function outputs.
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