Mounting In "Cold Plate" Technique - Lenze EVS9321 Montageanleitung

4.2.4

Mounting in "cold plate" technique

The drive controllers can be mounted in ˜cold plate˜ technique, e.g. on collective coolers.
For this purpose, the drive controllers of type EVS93xx−Cxx must be used.
Requirements for collective coolers
The following points are important for the safe operation of drive controllers:
Good thermal connection to the cooler
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– The contact surface between collective cooler and drive controller must be at least
as large as the cooling plate of the drive controller.
– Flat contact surface, max. deviation 0.05 mm.
– Connect the collective cooler with all specified screw connections with the drive
controller.
Do not exceed the thermal resistance R
ƒ
operation of drive controllers under rated conditions.
9300
Type
EVS9327−Cx
EVS9328−Cx
Ambient conditions
The rated data and the derating factors at increased temperature also apply to the
ƒ
ambient temperature of the drive controllers.
Temperature at the cooling plate of the drive controller: max. 75 °C.
ƒ
EDKVS9332X DE/EN/FR 4.0
Mechanical installation
Standard devices in the power range 15 ... 30 kW
Mounting in "cold plate" technique
given in the table. The values apply to the
th
Cooling path
Power to be dissipated
P [W]
v
410
610
l
Heatsink − environment
R [K/W]
th
0.085
0.057
4
137