Grounding for SImatic PG

Hello!

I want to use a Simatic PG on our Mobile Machine at Mines. In this machine we have impedance grounded (IT system).The neutral of our 240V system is connected to grounding bus of the electrical panel which is further connected to clients grounding system situated miles away from the mine pit through trailing cable and then through overhead line.But as per Siemens Datasheet this device intended for operation on grounded power supply system.So if we use this Simatic PG in this condition will it effect the longevity or the warranty of this device?

Thanks in advance.

Shambo

Hello,

gives yourself question/example when if your device is constructed for not humidity/water area, putting/destroying your device inside water you not lost warranty?