Prevention Of Entering Of Foreign Matter - Mitsubishi Electric MDS-E Series Instruction Manual

MDS-E/EH Series Instruction Manual
1 Installation

1.4.3 Prevention of Entering of Foreign Matter

Treat the cabinet with the following items.
(1) Make sure that the cable inlet is dust and oil proof by using packing, etc.
(2) Make sure that the external air does not enter inside by using head radiating holes, etc.
(3) Close all clearances of the cabinet.
(4) Securely install door packing.
(5) If there is a rear cover, always apply packing.
(6) Oil will tend to accumulate on the top. Take special measures such as oil-proofing to the top so that oil does not
enter the cabinet from the screw holds.
(7) After installing each unit, avoid machining in the periphery. If cutting chips, etc., stick onto the electronic parts,
trouble may occur.
(8) When using the unit in an area with toxic gases or high levels of dust, protect the unit with air purging (system to
blow clean air so that the panel's inner pressure is higher than the outer pressure).
29 IB-1501229-F