12/8/2014 10:15 AM | |
Joined: 8/27/2010 Last visit: 4/13/2024 Posts: 417 Rating: (37) |
Hi! Basically, all the information you need during of installation of automation systems located in simatic module data manual and installation manual for CPUs (example). For more detailed information, take a look atearthing guidelines. |
12/10/2014 5:58 AM | |
Posts: 16 Rating: (0) |
Thank you so much |
12/10/2014 10:37 AM | |
Posts: 16 Rating: (0) |
Hi Dear Tajin2310 B) Also the SH (means shields of analog IS cable?) and M (0V of control system operating voltage) are connected together? Based on CPU installation manual of Siemens documents the reference potential point (M) is connected to ground terminal of rack by jumper or without jumper(With RC filter), then when you connect SH and M together you short clean earth(Shield of IS cable) to PE or ground grid by connecting cabinet plate to PE. But based on control system specification of OIL & GAS fields, we must separate clean earth and PE (dirty earth). Please tell me more detail.TNX h-sh |
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