Yes, provided that output load filters are provided.
For more information, about these applications please contact EC&M via our toll-free number at 1-800-240-1230 or email using our online form.
The hardware and software of the Endeavor® frequency drive sub-unit has been modified to make an effective and safe crane drive system. It has been pre-programmed and designed specifically for crane use. HVAC drive units are specifically NOT to be used on crane systems without a thorough design review and the required modifications for crane applications. To apply a standard off-the-shelf HVAC frequency drive to a crane is considered to be unsafe, and is to be avoided.
This can be done, but the answer depends on the control style, and the mechanics of the crane. Leaving mechanics aside, on AC contactor systems, motors are placed in parallel, and the mechanics of the crane must keep the crane from skewing. On AC variable frequency drive systems, if the mechanics alone are not sufficient to keep the crane from skewing, separate drives may be needed for each motor.
The original Class 6401 CORPAK control was AC Magnetic Amplifier control for infinitely variable speed hoist and travel controls. This was replaced in the mid-1960s by the Class 6401 STATA, primary thyristor (SCR) control. The STATA was in turn obsoleted in the mid-1980s. Modern replacement includes Class 6417 and 6418 Endeavor® Variable Frequency Control.
Yes, all we need is the ECB nameplate data to engineer a complete system around your ECB.
We offer a small rectifier block, approximately 1” cube in size, with a protecting MOV, to be mounted at the DC terminals, which can provide DC power for several contactors.
Please reference our Class 7004 or Class 8503 catalogs, pages 111 or 133, for basic schematic and part number details.