Mounting In "Cold Plate" Technique - Lenze 9300 vector Série Instructions De Montage

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 EVF93xx−CV must be used.
Requirements for collective coolers
The following points are important for safe and reliable operation of the controller:
Good thermal connection to the cooler
ƒ
– The contact surface between the collective cooler and the controller must be at
least as large as the cooling plate of the controller.
– Plane contact surface, max. deviation 0.05 mm.
– When attaching the collective cooler to the controller, make sure to use all
specified screw connections.
Observe the thermal resistance R
ƒ
controller operation under rated conditions.
9300
Type
EVF9327−CV
EVF9328−CV
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
EDKVF9333V DE/EN/FR 7.2
Mechanical installation
Standard devices in the power range 15 ... 30 kW
Mounting in "cold plate" technique
given in the table. The values are valid for
th
Cooling path
Power to be dissipated
P [W]
v
410
610
l
Heatsink − environment
R [K/W]
th
0.085
0.057
4
151