User Manual

DIR 1000587R0002 (L3821)
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Eachtimetheunitisturnedon,oraftermorethan2minutesofinactivityonthekeyboard,thedisplayindicatesthefollowing(default)page:
3.4.2 Protections menu
FromtheinterfaceyoucanpressENTERtoaccessthemenuofthedifferentprotectionsavailableonthedisplay
Usingthe“arrowUP”and“arrowDOWN”youcanviewthevariousprotections.
Onthewhole,alldatathatcanbedisplayedconcernprotections:
L,S,I,G,U,OT,LOADPROTECTION,MM.
Example of surng the Protections Menu
FromtheProtectionmainpage,pressENTERtogotoProtectionLMenu.
Use“arrowUP”and“arrowDOWN”toselectitemsonthemenuandconrmbypressingENTER.PressingthiskeytriggersaPasswordprompt,
thenyoucanselectthefunctionsassociatedwithprotectionL(asintheexample)
Exampleofhowtoselectthet=k/i
2
curve
3.4.2.1 Protections menu table
Protection Parameter/Function
L Curve 
  ThresholdI1 
  Timet1 
  Thermalmemory ON/OFF
S Enable ON/OFF
  Curve 
  ThresholdI2 
  Timet2   
Enter↵
Enter↵
Percentageofactualcurrentswithrespect
totheratedvalues(100%)
Currentofthephaseunderthegreatestload
Indication for the phase under the greatest
load(L1,L2,L3,N)
N
10:22:53
400 A
(I )
1
1/5
Protections settings
Measures
Settings
Protections
Menu
1/5
Protections settings
Measurements
Settings
Protections
Menu
1/15
Overload
SProtection
IProtection
LProtection
Protections
1/15
Overload
SProtection
IProtection
LProtection
Protections
1/4
Threshold I1
TimeT1
Function
LProtection
t=k/i
2
Password
Enter password
0***
1/4
t=0.14b/(i -1)
0.02
T=13.5b/(i-1)
t=k/i
2
Function
Enter↵
PSW+Enter↵
Similarly,toaccessthemenusfortheotherprotections,seetheProtectionsMenutablebelow.