Chapter 1 Introduction
VFD-EL-W
1-9
1. Due to a small protruding part of the heat-sink at the bottom of the Frame A1/ A2, we calculate the distance C
for the side-by-side horizontal installation according to the main part of the motor drive only.
2. Frame A1 and A2 does not support zero-stack installation, whereas Frame B supports zero-stack installation.
3. Running the drive continuously with full load by the ambient temperature listed in the “Max. ( Derating is not
requiered)” column reduces the drive’s life span.
4. After installing a cooling fan to VFD007EL21W(-1), the operating temperature of this model is as shown in the
table above. When VFD007EL21W(-1) doesn’t have cooling fan, its operating temperature should be 10 ºC
lower than the temperature shown above (See Cooling Fan Installation in Appendix B.4).
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