Hitachi SJ-PB(T) Trip display, Protection function list, Countermeasure for a trip state

CHAPTER 6 COUNTERMEASURE FOR ABNORMALY

6.1 Trip display

When the inverter is in a tripped state, the inverter displays an error code (See table below). The trip history monitor (d081 to d086) also displays the same error code as the inverter.

Trip code Inverter’s running condition of trip detected

6.2 Protection function list

The table below describes an error code for protecting the inverter and the motor.

Error Display in the table below, X is 6 (Error for option slot 1) or 7 (Error for option slot 2).

No.	Function	Error	Action
		Display
1	Profibus communication	EX0	This error is displayed, when disconnection occurred, while
	error		the inverter is operating with Profibus.
2	Inverter communication	EX9	This error is displayed, when communication timeout occurs
	error		between the inverter and the option board.

With regard to the other errors except table above, refer to Inverter instruction manual chapter 4 Explanation of function.

6.3 Countermeasure for a trip state

The table below only corresponds to additional trip codes, with regard to the other countermeasures refer to Inverter instruction manual chapter 4 Explanation of function.

Trip	Name of trip	Cause		Conformation	Countermeasure
code
EX0	Profibus	Defective connector	for	Check the area of	Improve the connection and then
	Communication	signal cable causes		connection.	reset the power supply.
	error	connection fail.
		Terminating resistor	is	Check the Connection	Connect the terminating Resistor
		not connected.			and then reset the power supply
		Wiring distance does not		Check the	Adjust the setting to the matching
		much with baudrate.		wiring distance	Baudrate or adjust wiring distance
EX9	Inverter	Option board is		Check as mentioned left	Mount the option board again and
	communication	removed.			then secure it with screws.
	error

6.4 LED display and Countermeasure

Following states are indicated by three LED's.

LED	Color		Function	Countermeasure
Fieldbus	Green	Fieldbus is on-line.		-
On/Off	Red	Fieldbus is off-line.		Confirm connection fails of connector.
Fieldbus	Flash Red 1Hz	Configuration error.		Confirm setting data and send correct data.
	Flash Red 2Hz	User configuration data error.		Confirm system setting and adjust adequate.
diagnosis
	Flash Red 4Hz	VPC3+ initialization failed.		Need to change the SJ-PB.
	Green	Serial channel status OK.		-
	Flash Red 1Hz	Serial communication error.		Confirm cable length and connection fails of
Serial channel				connector. And then adjust adequate.
	Red	No serial communication.		Confirm cable length and connection fails of
status		(Or during	initializing inverter	connector. And then adjust adequate.
		data. In	this case, after
		initializing, LED color returns to
		green )

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