MTL SD32X Grounding
MTL SD32X Grounding
(OP)
This device has a common ground with the Din rail when mounted on it. We isolate this din rail in our Turbine Control System.
The question I have is where is the best place to take this din rail to ground?
1. IE where we have shields from many 4-20 devices terminated.
2. FG which in our case is very noisy (Many motors and Ancillary devices).
3. PE which for us is power earth (low voltage)
4. 0v which we float within the control system.
All our grounds eventually wind up at the station ground where by code they are all bonded together.
Thank you in advance.
Dave
The question I have is where is the best place to take this din rail to ground?
1. IE where we have shields from many 4-20 devices terminated.
2. FG which in our case is very noisy (Many motors and Ancillary devices).
3. PE which for us is power earth (low voltage)
4. 0v which we float within the control system.
All our grounds eventually wind up at the station ground where by code they are all bonded together.
Thank you in advance.
Dave





RE: MTL SD32X Grounding
TTFN

FAQ731-376: Eng-Tips.com Forum Policies
RE: MTL SD32X Grounding
That was the manufacturers link I posted. It is generic in answer.
Dave
DrJorde
http://plansbyjorde.tripod.com
RE: MTL SD32X Grounding
TTFN

FAQ731-376: Eng-Tips.com Forum Policies
RE: MTL SD32X Grounding
The search I did, turned up a closed thread on the same subject. So I just clicked on start a new thread and it placed it here. This is not power related. it has to do with grounds and very low level signals.
Dave
DrJorde
http://plansbyjorde.tripod.com
RE: MTL SD32X Grounding
If your DIN rail is isolated for other reasons, then perhaps you could add *another* short section of DIN rail that is firmly grounded to earth ground via metallic structure.
All this is based on that it's a surge supression device and the surges are most likely to be lightning induced. The application is similar to antenna lightning protection systems that are always taken to earth ground where feasible (excluding airplanes).
Standby for any other opinions. They may be better informed than I.
RE: MTL SD32X Grounding
Keith Cress
kcress - http://www.flaminsystems.com