ABB AC 800F Mounting And Installation Instructions Manual page 26

2 AC 800F Precautions
Touch the module front panel,
only!
Observe the max. ambient
temperature!
Avoid humidity condensing!
Prior to first commissioning submit
the modules to the specified
operating temperature for a least 30
minutes and only then switch them
on.
Do not obstruct the air vents!
Do not plug in or remove the
power supply module or the
Ethernet modules when live!
Plugging/removal under power is
only permissible for fieldbus
modules.
2-2