Schneider Electric 3BZ2, iFBZ, FBZ2, EOCR-i3BZ manual Front face, Current display, Bar graph

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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

Front face

Power

GR NO Output

7 segment LED display

Reset

Mode selection

Set/Store

Communication

OL NO Output

OL NC Output

Phase indication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED

LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Phase indication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ampere(A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1/L2/L3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Second(s)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bar graph

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

 

70

 

75

80

 

85

90

95

100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 digit 7 segment LED display

3 phase currents (In) and the leakage current are displayed every 2 seconds in sequence.

7 segment LED display

Bar graph

 

Mode selection

Reset

Set / Store

�it shows the load factor to OC setting value by % �% value = (running current/setting current) × 100% �Min scale is 65%

�if the setting value is the rated motor current, it shows the load factor of the motor.

Current display

�Shows the highest current among three phases for oc, Stall, Jam trips. �Shows the lowest current among three phases for uc, Ub trips. �Shows the lost phase for PL.

�Shows the phase and the current during running.

Amp : Ampere. LED is on when a current display.

×10 : Shows the unit changed to 10 times.

Sec : Second. LED is on when a time display.

Power

GR NO Output

Communication

OL NO Output

OL NC Output

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Contents Page Page Bottom hole & terminal type Applications Public institutions EOCR-i3BZ/iFBZ/3BZ2/FBZ2 General FeaturesCommunication function Applicable to i3BZ/iFBZ Operating Condition & Setting Range Operation TimeProtection functions Auxillary functionsSpecifications Time-current characteristic curve Fail-safe operation Over current and time setting tipsOver current Setting tips in definite TCC mode Alert Operation Pattern #3Bar graph Front faceCurrent display Button Description Phase digital ammeter functionButtons and Setting Sequence Parameter Description Setting sequence and menuCommunication *2 Menu Parameter Description DefaultAlert *1 Control terminals Trip cause indication and fault recordsSingle line Diagram Wiring ExamplesPhase line Diagram Single phase line DiagramDimensions Order Code RS485 bus connection Modbus network settingStandard connection Bus connection through a SCA type junction box Iksan Plant Head Office