Instruction manual

 Wiring the Main Circuits

• Main Circuit Input Power Supply

Always connect the power supply line to input terminals R/L1, S/L2, and T/L3 (R/L1, S/

L2 for single-phase Inverters). Never connect them to terminals U/T1, V/T2, W/T3, B1,

B2, −, +1, or +2. The Inverter may be damaged if the wrong terminals are connected.

For single-phase Inverters, always use terminals R/L1 and S/L2. Never connect

terminal T/L3.

• Grounding (Use ground terminal .)

Always ground the ground terminal according to local

grounding codes.

Failure to observe this warning may result in an electric shock

or a fire.

Never ground the Varispeed V7 to the same ground as welding machines, motors, or other

electrical equipment.

When several Varispeed V7 Inverters are used side by side, ground each as shown in exam-

ples. Do not loop the ground wires.

RST

Circuit Breaker

for Wiring

Ground

NOTE

WARNING

Good

Poor