Hitachi J300U Series Improper grounding Proper grounding Inverter, Inverter At the site

NOTE 3: Be sure that the specified grounding is carried out. Be sure to separate the unit’s grounding pole from those of other heavy electric machinery, and avoid using common grounding poles.

If multiple inverters are used, make sure that the grounding connections do not create a loop.

Improper grounding	Proper grounding
Inverter	Inverter
Inverter	Inverter
		Grounding bolt
Inverter	Inverter	(at the site)

CAUTION

External or remote over load protection required, if multiple motors to be connected.

For models J300-450LFU and -550LFU only , connect to branch circuit protected at maximum 300% of output current rating.

Suitable for use on a circuit capable of delivering not more than 10,000 rms symmetrical amperes,*** volts maximum,

(where *** = input voltage)

5-4