[PSES] SV: [PSES] Stripline - discontinuity in adjacent ground planes

GND1-Signal = 200um Signal-GND2 = 220um So there are slightly differences of the distances. I have found two possible alternatives to change layout so the high speed lines in Signal layer will have 100% GND return coupling all the way. They should must have priority when interfering other

[PSES] SV: [PSES] Stripline - discontinuity in adjacent ground planes

Note that the worst situation may occur when both planes are equal, In this PCB, they are more or less equal. It's an 8-layer stack (bottom/ Layer8=GND, Layer7=Signals, Layer6=GND, and .). But the signal traces in Layer7 have now continuous return path in both L8 and L6. Regards Amund

Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment

Hi all, in these cases (floating metal parts of EUT) we connect the floating part to Earth Ground with a 2x 470kohm cable similar (or same) as that used for VCP/HCP. See IEC/EN 61000-4-2 sec. 7.2.4 Ungrounded Equipment: "A cable with 470 kohm bleeder resistors, similar to the one used with the

[PSES] Fwd: Emergency Stop Function

If any of you have a Case of Corrona, I hope it is the type that comes in bottles or cans. First, there is a guy in this group who I chatted with in the past who is like an expert in the E-Stop function. He has a Blog or Website dedicated to this topic which I cannot currently find. Can anyone

[PSES] Product Safety Job Opportunity at Thermo Fisher Scientific - Boston Area

We have the following product safety/ compliance position currently open in the Boston, MA area. Product Safety and Compliance Specialist job in Chelmsford, Massachusetts at Thermo Fisher Scientific: https://jobs.thermofisher.com/global/en/job/114265BR/Product-Safety-and-Compliance-Specialist

Re: [PSES] **External**[PSES] Fwd: Emergency Stop Function

I think you need a VFD with Safe Torque Off (STO) function. Jim Hulbert From: Brian Kunde [mailto:bkundew...@gmail.com] Sent: Thursday, March 19, 2020 1:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: **External**[PSES] Fwd: Emergency Stop Function If any of you have a Case of Corrona, I hope it

Re: [PSES] Fwd: Emergency Stop Function

Brian — Look on the web for Doug Nix. Good guy, knows his stuff. Mike Sent from XFINITY Connect Mobile App -- Original Message -- From: Brian Kunde To: EMC-PSTC@LISTSERV.IEEE.ORG Sent: March 19, 2020 at 12:19 PM Subject: [PSES] Fwd: Emergency Stop Function If any of you have a Case of

Re: [PSES] **External**[PSES] Fwd: Emergency Stop Function

Brian, Depending on your requirement you may need a risk assessment to something like ISO 12100 or ISO 13849-1. From that would be determined the minimum performance level of the safety control system. A single contactor could be used as the VFD manufacturer suggests. For higher performance