Delta Electronics AC Motor Drive VFD007S23A Manual de usuario descargar pdf (Pagina 21)

Chapter 3 Wiring

10. Do not attach or remove wiring when power is applied to the AC drive.

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

12. For the single-phase applications, the AC input line can be connected to any two of the

three input terminals R, S, T. Note: This drive is not intended for the use with single-

phase motors.

13. Route the wires of Power Terminals and Control Terminals separately, or 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 load reactor is needed, install the filter close

to U.V.W. side of AC drive. Do not use a Capacitor or L-C Filter (Inductance-Capacitance)

or R-C Filter (Resistance-Capacitance).

16. When using a GFCI (Ground Fault Circuit Interrupt), select current sensor with not less than

200mA, with not less than 0.1-second detection to avoid nuisance tripping

CH 3-6 Motor Operation Precautions

1. When using the AC drive to operate a standard 3-phase induction motor, notice that the

energy loss is greater than an inverter duty motor.

2. While using the standard induction motor at low speed, the temperature of the motor may

rise, so do not operate the motor at low speed for a long period of time.

3. When the standard motor operates at low speed, the motor output torque will decrease,

please decrease the load during the operation.

4. If 100% output torque were desired at low speed operation, it may be necessary to use a

special motor that can handle this load (inverter duty).

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Delta Electronics AC Motor Drive VFD007S23A Manual de usuario Pagina 21