Schneider Electric Comprehensive Guide to EOCR Settings and FBZ2 Over-Current Relay

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

Setting sequence and menu

No.	Menu	Parameter	Description	Default
			Threshold of Alert output, set by % of the over current threshold (oc). If the load
			current is higher than this value, alert output(07-08 contact) is energized
			according to the setting of “ALo:XX”.
			If the load current is detected, alert output(07-08 contact) is energized. The alert
			threshold is no meaning for this operation.
			Refer to the Alert Operation Pattern.
			If the load current is higher than the alert threshold, alert output(07-08 contact)
			repeats open for 1s and close for 1s (flickering), The flickering starts from the
22	Alert *1)		motor starting.
			Refer to the Alert Operation Pattern.
			If the load current is higher than the alert threshold, alert output(07-08 contact) is
			closed (holding) and remains closed until the load current decrease under the
			alert threshold. The alert output is blocked during motor starting.
			Refer to the Alert Operation Pattern.
			If the accumulated running hour is more than the Running Hour threshold,
			the alert output repeats close for 1s and open for 1s.
			The alert output is used only for under current protection. If this mode is selected,
			a trip by an under current fault is signaled through alert output(07-08), instead of
			overload trip output(95-96 or 97-98).

Fault reset by a power cycle or by pressing the ESC button.

		Fault reset only by pressing the ESC button.
23	Reset
		Fault reset by a auto-reset timer,
		Setting range of the timer : 0.5sec~20min.
		Also the fault can be reset by a power cycle or by ESC button.
		The maximum auto-reset number during 30 minutes in auto-reset mode.
24	Reset Limitation	The auto-reset counter is stored in the non-volatile memory and is cleared by
		pressing ESC button when the counter reaches the limitation.
		To disable limitation, select “oFF”. Setting range : oFF~5 times.
		In this menu, toggle display, “-trh-” and the accumulated value, is activated.
25	Total Running Hour	The accumulation starts from the installation and the user cannot clear the	Not
		accumulated value.	adjustable
		This display unit is 1 hour.
		In this menu, toggle display, “--rh-” and the accumulated value, is activated The
		user can clear the accumulated value by selecting the running hour threshold to
26	Running Hour	“rh:oFF”. When motor stops	Not
		This display unit is 0.1 hour (6 minutes).	adjustable
		By selecting “ALo:to”, the user can get the alert signal through alert output(07-08)
		when the accumulated value is more than the running hour threshold.
	Running Hour	Threshold for alert output when the user selects “ALo:to”. The unit is 10 hours
27		and this menu is not displayed when the motor is starting or running.
	Threshold
		Setting range : 10~9990 hours, oFF
		Modbus slave address.
		Range : 1 ~ 247.
		Setting for Communication speed
		Range : 1.2kbps, 2.4Kbps, 4.8Kbps, 9.6Kbps,19.2Kbps, 38.4Kbps .
28	Communication*2)	Parity setting
		Range : odd, even, non.
		Duration for communication loss detection.
		Displays alarm when no new communication data is received for the duration.
		If “oFF” is selected, no monitoring for communication channel is activated.
		Setting range : 1~999 sec, oFF
		When this menu activated, OL trip signal and enabled EF trip signal is generated
		when (3s+ot) expires. The display shows “End” when the test is done.
29	Test Trip	By pressing ESC, returns to the load current display mode.	No
		This menu is not displayed when the motor is starting or running.	parameter
		Before (3s+ot) expires, pressing ESC or motor starting or running blocks the test
		trip and return to the load current display.
30	End	This shows the end of test trip. Test result is stored in the fault record.	No
			parameter

*1) This menu is only available in “C” Type.

*2) These are applied to i3BZ & iFBZ only.

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