Delta VFD-L Series

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VFD-L Series

3-6

11. Do not monitor the signals on the circuit board while the AC drive is in operation.

12. For the single-phase rated AC drives, the AC power can be connected to any two of the

three input terminals R/L1, S/L2, T/L3.

Note: This drive is not intended for the use

with single-phase motors.

13. Route the power and control wires separately, or at 90

angle to each other.

14. If a filter is required for reducing EMI (Electro Magnetic Interference), install it as close

as possible to AC drive. EMI can also be reduced by lowering the Carrier Frequency.

15. If the AC drive is installed in the place where a load reactor is needed, install the filter

close to U/T1, V/T2, W/T3, side of AC drive. Do not use a Capacitor or L-C Filter

(Inductance-Capacitance) or R-C Filter (Resistance-Capacitance), unless approved by

Delta.

16. When using a GFCI (Ground Fault Circuit Interrupt), select current sensor with sensitivity

of 200mA, and not less than 0.1-second detection to avoid nuisance tripping.

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