biến tần delta phần 2 pptx

Chapter 1 Introduction|

1-10 Revision June 2007, 0ELE, V1.00

NOTE

Frame A: VFD002EL11A/21A/23A, VFD004EL11A/21A/23A/43A, VFD007EL21A/23A/43A,

VFD015EL23A/43A

Frame B: VFD007EL11A, VFD015EL21A, VFD022EL21A/23A/43A, VFD037EL23A/43A

Revision June 2007, 0ELE, V1.00 2-1

Chapter 2 Installation and Wiring

After removing the front cover, check if the power and control terminals are clear. Be sure to observe

the following precautions when wiring.

„ General Wiring Information

Applicable Codes

All VFD-EL series are Underwriters Laboratories, Inc. (UL) and Canadian Underwriters

Laboratories (cUL) listed, and therefore comply with the requirements of the National

Electrical Code (NEC) and the Canadian Electrical Code (CEC).

Installation intended to meet the UL and cUL requirements must follow the instructions

provided in “Wiring Notes” as a minimum standard. Follow all local codes that exceed UL

and cUL requirements. Refer to the technical data label affixed to the AC motor drive and

the motor nameplate for electrical data.

The "Line Fuse Specification" in Appendix B, lists the recommended fuse part number for

each VFD-EL Series part number. These fuses (or equivalent) must be used on all

installations where compliance with U.L. standards is a required.

CAUTION!

1. Make sure that power is only applied to the R/L1, S/L2, T/L3 terminals. Failure to comply may

result in damage to the equipment. The voltage and current should lie within the range as

indicated on the nameplate.

2. All the units must be grounded directly to a common ground terminal to prevent lightning strike

or electric shock.

3. Please make sure to fasten the screw of the main circuit terminals to prevent sparks which is

made by the loose screws due to vibration.

4. Check following items after finishing the wiring:

A. Are all connections correct?

B. No loose wires?

C. No short-circuits between terminals or to ground?