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62
This logic configuration of the enabled Start/Trip protection signals can be mapped on physical
digital outputs as in the example below, where all six available signals are mapped on DO9,10,11,12
and 14,15. Protection Start 1 signal will always remains inactive (low) and DO10 open, as it has
not been configured in the Logic Configuration window.
Fig. 53
14.7 Protection Parameters
Two protection sets are available; the basic set provides various types of phase overcurrent and
earth fault overcurrent, and the full set adds motor protection functions. All protection functions
are according to IEC 60255-3 and IEC 60255-8 Standards.
Name
51 Overcurrent IDMT (NI, VI, EI, LI)
50 Overcurrent DT1
50 Overcurrent DT2
51N Earth fault IDMT
50N Earth fault DT1
50N Earth fault DT2
51 MS Motor start protection
66 Number of starts
51 LR Locked Rotor
49 Thermal overload
46 Unbalanced load
Basic set
Full set
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
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