Hitachi SJ-FB manual Action selection in case of option error

Chapter 8 PROTECTION FUNCTION

8.1 Action selection in case of option error

To ignore or make inverter trip can be selected in case of option error.

Item	Function code	Data	Contents
Action selection in	P001 / P002	00	TRP: Inverter trips and outputs alarm signal.
			RUN: Inverter ignores the option error and
case of option error		01
			continues the operation.

(Note) : Inverter trips anyway in case of encoder line break error (E60, E70), SJ-FB abnormal connection (E69,E79) occurs, although action selection is set to 01 (RUN). Please refer to "Chapter 5.2 FEED-BACK BOARD INITIAL SETTINGS".

8.2 Causes and Countermeasures for Option Board Errors

When any of the following alarms occurs, the inverter displays the alarm cause and stops.

Display	Item	Contents	Processing
		Detect the line break or disconnection of the	Check the encoder signal line and
E60		encoder line.	connection.
	Encoder line	Detect when there is an encoder failure.	Replace it to a suitable one.
(E70)	break	Detect when the specification of the encoder is
(Note 1)		not line driver output type.
		Detect when there is no Z pulse.	Turn SWENC-2 OFF on the option
			board.
E61		Detect when the motor rotation speed exceeds	Adjust the Kp and J constants
	Over speed	(maximum frequency (note 2))×(over speed
(E71)		error detection level (P026).	related to the speed control system
(Note 1)			to reduce overshoot.
		(Note 3),(Note 4)
E62		Detect when the deviation of the current	Increase the position loop gain.
(E72)	Positioning	position and command value becomes more	Decrease the numbers of the pulse
(Note 1)	error	than 1,000,000 pulses during position	train input per second.
		controlling.
E69	connection	Detect abnormal connection between the	Check the connection between the
(E79)
	error	inverter main body and SJ-FB.	inverter main body and SJ-FB.
(Note 1)

(Note 1): Data in parentheses ( ) applies when the option card is connected to option slot 2.

(Note 2): Frequency upper limit value (A061/A261) is reflected when it is set.

(Note 3): It depends on what type of main body combines with the SJ-FB, the setting value conversion is different.

Please refer to the (Note 3) of the “5.3 Items regarding the feed back board of the inverter main body“.

(Note 4): When the over speed error occurred . There is a possibility the over speed error occur again. Even though the trip is cleared during the motor free run. In this case stop the motor, then clear the trip please.

8.3 Warning display (Feed back option relation)

(Refer to the operation manual of the main body about the warning other than the following,)

The 009 is displayed in the case that it became orientation speed setting (P015) > the highest

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