Lenze ECSDExxx - Manual (Page 76)

Mechanical installation
Mounting with thermal separation (push−through technique)
3
l
76 EDKCSDE040 DE/EN/FR 4.0
3.2 Mounting with thermal separation (push−through technique)
For the push−through technique the rear panel of the control cabinet must be a
steel plate with a thickness of at least 2 mm.
The edges of the mounting cutout and the fixing holes for the wire clamps have
to be slightly arched inwardly (to the ECS module).
Cooling
The separated heatsink serves to reduce the heat generation in the control
cabinet.
ƒ Distribution of the power loss:
– approx. 65 % via separated cooler
– approx. 35 % in the inside of the ECS module
ƒ Protection class of the separated cooler: IP54
– The sealing surface at the heatsink of the ECS module must rest
completely against the mounting plate.
– Use a liquid thread sealant to bond the screws of the clamps.
ƒ Cooling of the drive system:
– Air flow behind the rear panel of the control cabinet must be ³ 3 m/s
(e.g. by means of a collective fan).
ƒ With sufficient cooling, the rated data remains valid.