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E6581090
B-1
2
2. Connection
Warning
Disassembl
y
prohibited
• Never disassemble, modify or repair. This can result in electric shock, fire and
injury. For repairs, call your sales agency.
Prohibited
• Don’t stick your fingers into openings such as cable wiring hole and cooling fan
covers. This can result in electric shock or other injury.
• Don't place or insert any kind of object into the inverter (electrical wire cuttings,
rods, wires). This can result in electric shock or fire.
• Do not allow water or any other fluid to come in contact with the inverter. That may
result in electric shock or fire.
Caution
Prohibited
• When transporting or carrying, do not hold by the front panel covers.
The covers may come off and the unit will drop out resulting in injury.
2.1 Cautions on wiring
Warning
Prohibited
• Never remove the front cover when power is on or open door if enclosed in a
cabinet.
The unit contains many high voltage parts and contact with them will result in
electric shock.
Mandatory
• Turn power on only after attaching the front cover or closing door if enclosed in a
cabinet.
If power is turned on without the front cover attached or closing door if enclosed in
a cabinet. This can result in electric shock or other injury.
• Electrical construction work must be done by a qualified expert.
Connection of input power by someone who does not have that expert knowledge
may 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 may
result in injury.
• Wiring must be done after installation.
If wiring is done prior to installation that may result in injury or electric shock.
• The following steps must be performed before wiring.
①Shut off all input power.
②Wait at least 15 minutes and check to make sure that the charge lamp is no
longer lit.
③Use a tester that can measure DC voltage (400VDC or more), and check to
make sure that the voltage to the DC main circuits (across PA/+-PC/C) is 45V or
less.
If these steps are not properly performed, the wiring will cause electric shock.
• Tighten the screws on the terminal board to specified torque.
If the screws are not tightened to the specified torque, it may lead to fire.
Be
Grounded
• Ground must be connected securely.
If the ground is not securely connected, it could lead to electric shock or fire when
a malfunction or current leak occurs.