Wiring - Toshiba TOSVERT VF-AS3 Instruction Manual

2. 3

Wiring

• Never disassemble, modify or repair.
This can result in electric shock, fire and other injury. Please call your Toshiba distributor for
repairs.
Disassembly
prohibited
• Do not stick your fingers into openings such as cable wiring holes and cooling fan covers.
The unit contains high voltage parts and contact with them will result in electric shock.
• Do not place or insert any kind of object (electrical wire cuttings, rods, wires etc.) inside the
inverter.
This will cause a short circuit and result in electric shock or fire.
Prohibited
• Do not allow water or any other fluids to come in contact with the inverter.
This will cause a short circuit and result in electric shock or fire.
• All options to be used must be those specified by Toshiba.
The use of options other than those specified by Toshiba will result in an accident.
• In using a power distribution device and options for the inverter, they must be installed in a
cabinet.
Mandatory
action
When they are not installed in the cabinet, this will result in electric shock.
This section explains cautions for wiring, how to connect to the power supply, motor, and control equip-
ment, functions of the terminal blocks/connectors for communication, and how to switch the grounding
capacitor, etc.
2. 3. 1 Cautions for wiring
• Never remove the front cover when the power is on.
The unit contains high voltage parts and contact with them will result in electric shock.
Prohibited
• Mount the front cover after wiring.
If you turn the power on without attaching the front cover, this will result in electric shock or
other injury.
• Electrical construction work must be done by a qualified expert.
Erroneous connection of power supply by someone who does not have that expert knowledge
will result in fire or electric shock.
• Connect output terminals (motor side) correctly.
If the phase sequence is incorrect, the motor will operate in reverse and that can result in injury.
• Wiring must be done after installation.
If you perform wiring prior to installation, this will result in electric shock or other injury.
Mandatory
action
• Verify that the power is turned off and the charge lamp is off before starting wiring.
If you perform wiring without verification, this will result in electric shock.
• Tighten the screws on the terminal block to specified torque.
If the screws are not tightened sufficiently to the specified torque, this will result in fire.
• Verify that the power supply voltage is within +10% and -15% (±10% when the load is 100% in
continuous operation) of the applied power supply voltage written on the name plate.
If you do not use the appropriate power supply voltage, this will result in failure or fire.
WARNING
WARNING
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2. Installation and wiring
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