2-2
2-3 Connection
Remove the control terminal block cover to connect the control terminal block. Remove the main
circuit terminal block cover to connect the main circuit terminal block. Correctly connect cables
taking care of the following precautions.
2-3-1 Basic Connection
(1) Be sure to connect the power cables to main circuit power terminals L1/R, L2/S and L3/T or
L1/L,L2/N of the inverter. If the power cables are connected to other terminals, the inverter will
be broken. As well, check the source voltage for the allowable voltage range specified on the
nameplate and so on.
(2) Connect the grounding terminal without fail according to national or local electric code to prevent
electric shock, fire or other disasters and to reduce electric noise.
(3) Use reliable crimp terminals for connection of cables to the terminals.
(4) After finishing wiring, check the following.
a. Check if the cables are connected correctly.
b. Check if there is no failure of connection.
c. Check if terminals or cables are short circuited or there is a ground fault.
(5) To change connection of an inverter having been turned on
The smoothing capacitor in the direct current part of the main circuit takes time to be discharged
after it is turned off. To avoid danger, check the DC voltage (across main circuit terminals P (+)
and N (-)) for a safety voltage (25 Vdc or lower) using a multi-meter, after the charge lamp is unlit.
Wait until the residual voltage is discharged before shorting a circuit, to avoid being hit by sparks
caused by the voltage (electric charge).
！
！！
！
WARNING
• Be sure to connect the grounding cable without fail.
Otherwise electric shock or fire could occur.
• Qualified electricians should carry out wiring.
Otherwise electric shock could occur.
• Perform wiring after checking that the power supply is turned off.
Otherwise electric shock could occur.
To Next Page
Loading...
Need help?
General
