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4
Wiring
Danger
Reference
Prohibited
-Do not connect the power cable to any output terminal (U/T1, V/T2 or W/T3
on the motor side), or the inverter could break down and cause a fire.
-Do not connect a resistor to any D.C. terminal (between PA and PC or PO
and PC), or the inverter could cause a fire.
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
power source
2.2
2.2
6.13.4
2.2
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. Incorrect
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) 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
do so could lead to a fire.
-Make sure that the supply voltage is within +10%/-15% (during continuous
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.
2.
2.
2.
2.
2.
1.4.4
Be Grounded
-Connect grounding wires correctly and securely. Otherwise, a breakdown
or electric leakage could lead to an electric shock or a fire.
2.
2.2
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.