INVERTER (main circuit connecting method )
at run time' please check whether the motor is in forward operation
at the command of forward operation . if it is in reverse operation'
please stop the system' cut the power supply and exchange any two
terminals among u'v'w then the motor will run forward .
do not disconnect the power supply to the inverter's output terminal '
otherwise' the inverter's interior will be damage. the grounding of
output terminal is not permitted. please do not left the output cable
to touch or connect the machine housing'otherwise'the inverter's
interior could be damage.
please do make sure the grounding wire connects to the ground. the grounding resistor resistance should be
less than 10w for inverter of 380 v level .
welding machine or other power equipment . the wire diameter shall conform with the stipulation of electric
equipment technical standard' and the wire should be as short as possible . in the occasion where two inverters are used at the same time' please do not make the grounding wire establish a loop. please find below for the correct grounding method and the wrong grounding method.
note; do not grounding the neutral point of the motor with y connection.