Toshiba VF-A7 instruction manual Wiring

■Wiring

	Danger	Reference
	-Do not connect the power cable to any output terminal (U/T1, V/T2 or W/T3	2.2
	on the motor side), or the inverter could break down and cause a fire.	2.2
	-Do not connect a resistor to any D.C. terminal (between PA and PC or PO
Prohibited	and PC), or the inverter could cause a fire.	6.13.4
	To install external braking resistor, refer to 6.13.4.
	-Don’t touch the connector terminals and cables of the devices(MCCB) on
	he input side of the inverter within 10 minutes after shutting down the	2.2
	power source
	-Entrust all electrical work to an experienced specialist. Wiring by an	2.
	inexperienced person could result in a fire or an electric shock.	2.
	-Connect the output terminals (on the motor side) correctly. Incorrect
Mandatory	connection of the terminals causes the motor to rotate in a wrong
	direction, and thus could result in injury to persons.
		2.
	-Perform wiring always after installing the inverter, or you could get a
	shock or an injury.	2.
	-Be sure to perform the following preparatory work before proceeding to
	wiring.
	(1) Turn off the power.
	(2) 10 minutes or more after turning off the power, make sure that charge
	lamp is extinct.
	(3) Using a circuit tester with a D.C. voltage measuring capacity of more
	than 800V, check to be sure that the voltage remaining in the D.C.
	main circuit (between PA and PC) is below 45V.
	Failure to do so could lead to an electric shock.
	-Tighten the terminal board fixing screws at the specified torque. Failure to	2.
	do so could lead to a fire.
	-Make sure that the supply voltage is within +10%/-15% (during continuous	1.4.4
	operation or within ±10% under full load) of the inverter's rated voltage
	specified on its rating label. Supplying a voltage exceeding the above
	range could lead to a breakdown, an electric shock or a fire.
	-Connect grounding wires correctly and securely. Otherwise, a breakdown	2.
	or electric leakage could lead to an electric shock or a fire.	2.2
Be Grounded		9.

Warning

Charged capacitors can present a shock hazard even after source power is removed

Drives with EMI filters will retain a charge on the input terminals for up to 10 min. after the power has been removed. To avoid electrical shock, don’t touch the connector terminals and uninsulated source cables at either the main circuit disconnect or the drive until the capacitive charge has dissipated.

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