2 Connect the other ends of the ground cables to the supply earth (ground) terminal
• 200 V products require Class 3 grounding. Resistance to ground must be ≤ 100 Ω.
• 400 V products require Special Class 3 grounding. Resistance to ground must be ≤ 10 Ω.
Install ground connections for the inverter and the motor by following the correct specifications to
ensure safe and accurate operation. Using the inverter and the motor without the specified
grounding connections may result in electric shock.
This product can cause a D.C current in the protective earthing condcutor. If a RCD or
monitoring (RCM) device is used for protection, only RCD or RCM of Type B is allowed on
supply side of this product.
Step 3 Power Terminal Wiring
The following illustration shows the terminal layout on the power terminal block. Refer to the
detailed descriptions to understand the function and location of each terminal before making
wiring connections. Ensure that the cables selected meet or exceed the specifications in 1.5
Cable Selection on page 10 before installing them.
• Apply rated torques to the terminal screws. Loose screws may cause short circuits and
malfunctions. Tightening the screw too much may damage the terminals and cause short
circuits and malfuctions.
• Use copper wires only with 600 V, 75 ℃ rating for the power terminal wiring, and 300 V,
75 ℃ rating for the control terminal wiring.
• Power supply wirings must be connected to the R, S, and T terminals. Connecting them to
the U, V, W terminals causes internal damages to the inverter. Motor should be connected
to the U, V, and W Terminals. Arrangement of the phase sequence is not necessary.
Attention
• Appliquer des couples de marche aux vis des bornes. Des vis desserrées peuvent
provoquer des courts-circuits et des dysfonctionnements. Ne pas trop serrer la vis, car
cela risque d‘endommager les bornes et de provoquer des courts-circuits et des
dysfonctionnements.
• Utiliser uniquement des fils de cuivre avec une valeur nominale de 600 V, 90 ℃ pour le
câblage de la borne d‘alimentation, et une valeur nominale de 300 V, 75 ℃ pour le
câblage de la borne de commande.
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