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E6581301
4
I
■
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■ Wiring
Warning
Reference
Prohibited
• Do not connect input power to the output (motor side) terminals (U/T1,V/T2,W/T3) of the
inverter.
Doing so will destroy the inverter and may result in fire.
• Do not connect resistors to the DC terminals (e.g., PA/+ and PC/-, or PO and PC/-).
That may cause a fire.
Connect resistors as directed by the instructions for “Installing separate braking resistors.”
• Within 15 minutes after turning off input power, do not touch wires of devices (MCCB)
connected to the input side of the inverter.
That could result in electric shock.
• Switch the grounding capacitor switch according to installation requirements.
If the switch is incorrect, that may result in fire or malfunction.
2.2
2.2
5.19
2.2
1.3.3
Mandatory
• 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.
(1) Turn off all input power to the inverter.
(2) Wait at least 15 minutes and check to make sure that the charge lamp is no longer lit.
(3) Use a tester that can measure DC voltage 800VDC or more, and check to make sure
that the voltage to the DC main circuits (between PA/+ and PC/-) 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.
• Check to make sure that the input power voltage is +10%, -15% of the rated power voltage
written on the rating label (±10% when the load is 100% in continuous operation).
If the input power voltage is not +10%, -15% of the rated power voltage (±10% when the
load is 100% in continuous operation) this may result in fire.
2.
2.
2.
2.
2.
1.4.4
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.
2.
2.2
10.
Caution
Reference
Prohibited
• Do not attach equipment (such as noise filters or surge absorbers) that have built-in
capacitors to the output (motor side) terminals.
That could result in a fire.
2.1
Caution
Caution
• Charged capacitors can present a shock hazard even after source power is removed.
• Drives with EMC filters will retain a charge on the input terminals for up to 15 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.