Скачать с ютуб How to maintain a VFD: Keeping the Connections Tight - A Galco TV Tech Tip | Galco в хорошем качестве

How to maintain a VFD: Keeping the Connections Tight - A Galco TV Tech Tip | Galco

For example, “re-torquing screws is generally not a good idea, and further tightening an already tight connection may ruin the connection entirely. Screws have a maximum clamping power at a torque value specific to its size, shape, and composition. Exceeding that torque value can permanently reduce the clamping power of that screw by reducing its elasticity and deforming it. Loosening and then re-torquing a screw can also reduce its elasticity, reducing its clamping power. Unless you have a good reason to believe that a screw should be re-torqued, you are usually better off leaving them alone if everything is working properly. Bad connections can eventually lead to arcing. Arcing occurring at the VFD input can result in nuisance over voltage faults, clearing or input fuses, or damage to protective components. Arcing at the VFD output can result in overcurrent faults or even damage to the power components. Loose control wiring connections can also cause erratic operation. For example, a loose START/STOP signal wire can cause uncontrollable VFD stops. A loose speed reference wire can cause the drive speed to fluctuate, resulting in scrap, machine damage, or personnel injury. Shop Now: http://www.galco.com/get/Drives For more Tech Tip Videos visit Galco TV:    / galcotv   Sign up for Galco’s newsletter that features our newest products, our can't-miss deals, our best videos, and total access to Galco’s electronics expertise: http://www.galco.com/email/ Connect with us! https://plus.google.com/+GalcoIndustrial   / galcoindustrial     / galcoindustrial     / galco-industrial-electronics   Don't forget to like and comment on this video, and subscribe to our channel! Galco is a Factory Authorized Stocking Distributor for Over 200 Brands of Industrial Electrical & Electronic Automation, Controls and Component Products; On-Site and Send-In Repair Services for Industrial Control & Automation Products for Over 2,000 Brands; Engineered Systems Integration, Retrofits & Upgrades for Variable Speed Drives, CNC, PLC Systems, Dynamometers & Test Stand Applications. Visit us online at http:// www.galco.com or call us at 800-337-1720. http://www.galco.com/safety With respect to the usage, installation or assembly of any products described in this video, Galco Industrial Electronics, Inc., a Michigan corporation, encourages you to follow the requirements and/or guidelines of: i) the Occupational Safety and Health Act of 1970, Public Law 91-596, as amended, and all laws, rules and regulations implemented in relation thereto; ii) the National Electric Code®; and iii) NFPA 70E®. Any installation, assembly or work described in this video should be performed by a qualified licensed electrician. GTV, Galco, galco.com, Galco Industrial Electronics, and Galco Industrial Electronics, Inc. are registered and/or pending registered trademarks under the U.S. Patent and Trademark Office, assumed names, registered domain names, and/or trade names of Galco Industrial Electronics, Inc., a Michigan corporation. LEGAL DISCLAIMER: While we have made every attempt to ensure that the information provided is accurate and has been obtained from reliable sources, Galco is not responsible for any errors or omissions, or for the results obtained from the use of this information. All information is provided "as is", with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information, and without warranty of any kind, express or implied, including, but not limited to warrantees of performance, merchantability and fitness for a particular purpose. At all times you should defer to the instructions and safety guidelines issued by the manufacturer. In no event will Galco, its agents or employees thereof be liable to you or anyone else for any decision made or action taken in reliance on the information provided to you or for any consequential, special or similar damages, even if advised of the possibility of such damages.