Figure 4-1 Air Guidance From The De To The Nde (Schematic Representation, Types 1Ph818. And 1Ph822.) - Siemens SIMOTICS M-1PH818 Operating And Installation Instructions

Preconditions for adequate cooling
● For motors that are cooled by the ambient air, the cooling air must be able to flow unimpeded
● Comply with the conditions of the IP degree of protection.
● Equipment and cables must be connected without strain.
Figure 4-1
A bypass is available for 1PH822. with IP23 degree of protection and air guidance from the
DE to the NDE.
SIMOTICS M-1PH8 1PH818., 1PH822., 1PH828.
Operating Instructions 10/2017
to and from the motors. Hot discharged air should not be drawn in again.
NOTICE
Overheating
If the required cooling air flow cannot be maintained, the machine can overheat. This can
result in material damage.
● Maintain the required minimum clearance for customer-supplied mounted accessories
at the air intake opening and at the air discharge openings to ensure the required
cooling air flow.
More stringent requirements regarding the IP degree of protection may necessitate the
installation of suitable filters and special arrangement of the intake and outlet openings.
Air guidance from the DE to the NDE (schematic representation, types 1PH818. and
1PH822.)
Preparations for use
4.4 Ensuring cooling
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