2. Connection

Danger

Never disassemble, modify or repair the inverter. Its disassembly could cause an electric shock, a fire or an injury. Request your Toshiba dealer for repair.

Disassemble

 

Do not put or insert anything (e.g., an electric cable, a bar or a steel wire) into the

 

inverter, or the inverter could cause a shock or a fire.

Prohibited

Do not splash water over the inverter, or the inverter could cause a shock or a fire.

 

Warning

Do not hold the front cover to carry the inverter, or the cover could come off and cause the main unit to fall, thus causing you to get an injury.

Prohibited

For models designed for 30kW motor or larger, carry it at least in a twosome, or it

could fall and cause you to get an injury.

Mandatory

2.1Cautions as to wiring

Danger

 

Never open the front cover of the inverter (or the door of the cabinet in which the

 

inverter is installed) when the inverter is energized, or you could get a shock since a

Prohibited

high voltage is applied to certain portions of it.

 

Do not turn on the power before attaching the front cover (or closing the door of the cabinet if the inverter is installed in it). Turning on the power with the cover or the door left opened could lead to an electric shock.

Mandatory Entrust all electrical work to an experienced specialist. Wiring by an inexperienced person could result in a fire or an electric shock.

Connect the output terminals (on the motor side) correctly. connection of the terminals causes the motor to rotate in a wrong direction, and thus could result in injury to persons.

Perform wiring always after installing the inverter, or you could get a shock or an injury.

Be sure to perform the following preparatory work before proceeding to wiring.

(1)Turn off the power.

(2)Wait more than 10 minutes, and make sure that the charge lamp is extinct.

(3)Using a circuit tester with a D.C. voltage measuring capacity of more than 800 V, check to be sure that the voltage remaining in the D.C. main circuit (between PA and PC) is below 45 V to do so could lead to an electric shock.

Tighten the terminal board fixing screws at the specified torque. Failure to do so could lead to a fire.

Connect grounding wires correctly and securely. Failure to do so could cause an electric shock or a fire if current leakage occurs or the inverter breaks down.

Be Grounded

B-1

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Toshiba VF-A7 instruction manual Connection, Inverter, or the inverter could cause a shock or a fire