text: <s>[INST] Powerful 4 E-STOP I am building a small panel with two(2) powerflex 4 VFD drives.I need to hard wire an e-stop into the drives. How do I do this?I have been told that contactors on the motors are not good and that I can't e-stop electronics. Does that mean I can't e-stop the VFD? The application is small. It runs two small horizontal conveyors. There is no major risk of stopping the motors at any point in time. My thought is to put a N/C contact in series with terminal 1 (stop). This will open the stop circuit and stop the motors. The drives will remain ON. Once the e-stop is reset, the open contact will close and the drive will wait for the start signal again from the main machine. Is this acceptable? Or will this method risk damaging the drives or motors? thank you [/INST] The Rockwell Knowledge base ID 39169 can assist. This attachment discusses the advantages and disadvantages of input contactors, output contactors and the DriveGuard Safe-Off relay http://www.rockwellautomation.com/knowledgebase/ \\n </s>