Mounting In "Cold Plate" Technique - Lenze 8400 Hardware Manual

5.2.3

Mounting in "cold plate" technique

The E84AVxxC... controllers are designed for assembly on coolers (e.g. collective coolers) in
"cold-plate" technique.
Requirements for collective coolers
A good thermal connection to the cooler is important for the trouble-free operation of
the controller:
The contact area between the collective cooler and the controller
ƒ
– must be at least as big as the cooling plate of the controller.
– must be smooth, the maximum deviation must not exceed 0.05 mm.
The collective cooler must be connected to the controller with all required screwed
ƒ
joints.
The thermal resistance R
ƒ
The values in the table apply to the operation of the controllers under rated
conditions.
The values include the heat transmission between the cooler and the device.
With a standard heat conducting paste and a film thickness of 50 m, the heat
transmission is approx.
– 0.03 K/W for controllers up to 5.5 kW
– 0.02 K/W for controllers up to 15 kW
– 0.01 K/W for controllers up to 22 kW.
Type
E84AVxxC2512
E84AVxxC3712
E84AVxxC5512
E84AVxxC7512
E84AVxxC1122
E84AVxxC1522
E84AVxxC2222
E84AVxxC3714
E84AVxxC5514
E84AVxxC7514
E84AVxxC1124
E84AVxxC1524
E84AVxxC2224
E84AVxxC3024xxS
EDS84ASC552 EN 10.0
Mechanical installation
Standard devices in a power range of 0.25 ... 3 kW
Mounting in "cold plate" technique
must be observed, see table.
th
Power to be dissipated
P
v [W]
15
20
30
40
60
75
100
25
35
50
60
70
100
100

5
Thermal resistance
R [K/W]
th
 1.5
 1.5
 1.0
 1.0
 0.6
 0.5
 0.4
 1.5
 1.0
 0.8
 0.6
 0.5
 0.4
 0.4
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