Actually we dont need to power on the drives and PLC at this pressure. It just the integrity test of the room for 2 to 3 days at this pressure. My question is that is it compulsory for us to remove all drives and PLC for that room for this test in power off condition.OR the structure of drive and PLC can withstand this pressure. After this test pressure become normal then we can power the control system.One suspects the answer has to be no; however generally electronic equipment and surrounding metal work might handle considerable pressure although batteries might give the first limitation. A moving coil meter might handle pressure but lcd display and membrane keyboard highly unlikely.
As for ABB, the first / obvious specification is environmental; Page 58 of the manual
Gives warnings for operation 2000 m above sea level.
The most obvious question is why would you have an ABB 800M in such a harsh environment.
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by Seth Price