Mounting In "Cold Plate" Technique - Lenze E70AC Series Hardware Manual

5.3.4

Mounting in "cold plate" technique

The E70ACxxCxxx4x... devices 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 controller has to be connected to the collective cooler 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 already include the heat transmission between the cooler and the device
with a standard heat conducting paste at a film thickness of approx. 50 mm.
Type
E70ACPSC0304x
E70ACMxC0054xx1xxx
E70ACMxC0104xx1xxx
E70ACMxC0204xx1xxx
E70ACMxC0054xx2xxx
E70ACMxC0104xx2xxx
E70ACPSC0604x
E70ACMxC0324xx1xxx
E70ACMxC0484xx1xxx
E70ACMxC0644xx1xxx
E70ACMxC0204xx2xxx
E70ACMxC0324xx2xxx
Tab. 5−1
Ambient conditions
The rated data and the derating factors at increased temperature also apply to the
ƒ
ambient temperature of the drive controllers.
)
Note!
Apply standard heat−conducting paste or heat−conducting foil onto cooler and
cooling plate before you bolt the controller onto the cooler.
EDS700ACBA EN 5.1
must be observed, see table.
th
Power loss
P [W]
V1
45
25
50
95
50
95
85
140
215
290
185
275
Cold plate
P separated power loss, to be dissipated via heatsink
V1
P Power loss remaining in the control cabinet
V2
l
Mechanical installation
Dimensions
Mounting in "cold plate" technique
Thermal resistance
R [K/W]
th
£ 1.11
£ 2.00
£ 1.00
£ 0.53
£ 1.00
£ 0.53
£ 0.41
£ 0.29
£ 0.19
£ 0.14
£ 0.22
£ 0.15
5
T Power loss
max
(control cabinet)
[°C] P [W]
V2
85 15
85 25
85 30
85 35
85 40
85 55
70 25
75 70
75 85
75 100
75 75
75 105
71