Schneider Electric iFBZ, FBZ2, 3BZ2 Phase digital ammeter function, Buttons and Setting Sequence

EOCR-i3BZ/iFBZ/3BZ2/FBZ2

EOCR-i3BZ / iFBZ : Intelligent Digital Over-Current, Earth Fault Relay with built-in ZCT,

EOCR-3BZ2 / FBZ2 : Economic Digital Over-Current, Earth Fault Relay with built-in ZCT

3 phase digital ammeter function

2sec

L1 current display

2sec

Rotate

L2 current display

2sec

2sec

GF current L3 current display

※Blocking display rotation can be done by pressing the SET button once during running. whenever press the SET button, the each phase current displays by turns. A fixed phase current display can be done by this.

※Pressing the ESC button, it returns to the Auto current display rotation mode.

Buttons and Setting Sequence

Button Description

Navigate menus by pressing UP/DN button.

Select a parameter to change, then the parameter starts blinking.

Modify a parameter value by pressing UP/DN button.

Memorize the values in the relay by pressing SET button. blinking stops to show it’s stored.

Pressing ESC button, it returns to the current display. Without pressing ESC button, it returns to the load current display in 50sec automatically.

※Fault history check : Pressing the ESC button more than 5sec, it displays the latest fault cause and the fault current or fault phase. Continuing to press DN button, you can see the current of L1(R), L2(S), L3(T), (GR) in turn. Press the DN button again to check the previous fault continually. In the latest fault display, the 100% LED of bar graph lights on and two LEDs of 95%, 100% lights on for the second fault display, three LEDs of 90%, 95%, 100% lights on for the oldest fault display. When you press the ECS button in this mode, it returns to the normal current display mode. The oldest fault record is over written when the number of fault to record exceeds three.

●Setting sequence

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