Coolant Temperature And Moisture Condensation; Condensation; Supply Of Tempered Coolant; Table 41: Dew Point Table - KEB COMBIVERT F6 Series Instructions For Use Manual

WATer-cOOLeD DeVIceS

5.1.5 coolant temperature and moisture condensation

The flow temperature should be selected depending on the volume flow that the heat
sink temperature is always 10 K below the overtemperature level (OH) at rated opera-
tion. This avoids a sporadic shutdown.
The maximum heat sink temperature can be found in chapter =>
quency and

5.1.5.1 Condensation

A temperature difference between drive controller and ambient temperature can lead to
condensation at high humidity.
Moisture condensation is dangerous for the drive controller. The drive controller can be
destroyed through occuring short-circuits.
NOTICE

5.1.5.2 Supply of tempered coolant

•
•
Air humidity / %
Ambient
temperature / °c
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
Table 41: Dew point table
temperature".
Destruction of the drive controller due to short circuit!
► The user must guarantee that any moisture condensation is avoid-
ed!
The supply of tempered coolant is possible by using heaters in the cooling circuit to
control the coolant temperature.
The following dew point table shows the coolant inlet temperature depending on the
ambient temperature and air humidity.
10 20
-45 -40
-42 -36
-37 -31
-34 -26
-29 -22
-26 -19
-23 -15
-19 -11
-18 -7
-12 -4
-8 0
-6 3
-2 8
1 11
4 15
8 19
30 40 50 60
-36 -34 -32 -30
-32 -29 -27 -25
-27 -24 -22 -20
-22 -19 -17 -15
-18 -15 -13 -11
-14 -11 -8 -6
-11 -7 -5 -2
-7 -3 0 1
-3 1 4 7
1 5 9 12
5 10 13 16
10 14 18 21
14 18 22 25
18 22 27 31
22 27 32 36
28 32 36 40
coolant inlet temperature / °c
„3.3.1 Switching fre-
70 80 90 100
-29 -27 -26 -25
-24 -22 -21 -20
-18 -16 -15 -15
-13 -11 -11 -10
-8 -7 -6 -5
-4 -3 -2 0
0 2 3 5
4 6 8 9
9 11 13 15
14 16 18 20
19 21 23 25
24 26 28 30
28 31 33 35
33 36 38 40
38 41 43 45
43 45 48 50
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