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Specifications
■
Temperature limits
Ambient temperature:
See the technical data.
Minimum coolant inlet temperature:
Condensation or frost is not allowed. The minimum
coolant temperature to avoid condensation (at an atmospheric pressure of 1 bar / 100 kPa)
is shown below as a function of the relative humidity (RH) and the ambient temperature
(
T
air
).
To avoid all kind of condensation inside the converter: ABB highly recommends to maintain
/ heat up the cooling 10 °C (+50 °F) above the ambient temperature (ie, air
temperature outside the converter), within the limits that the cooling liquid minimum
temperature is +5 °C (41 °F) and maximum temperature is +60 °C (140 °F).
Min. T
coolant
(°C)
T
air
(°C)
RH = 40%
RH = 50%
RH = 65%
RH = 80%
RH = 95%
-7.4
-4.5
-0.9
1.9
4.3
5
-3.0
-0.1
3.7
6.7
9.2
10
1.5
4.6
8.4
11.5
14.2
15
6.0
9.4
13.2
16.5
19.2
20
10.5
13.8
17.9
21.4
24.1
25
15.0
18.4
22.7
26.2
29.1
30
19.4
23.0
27.4
31.1
34.1
35
23.8
27.6
32.2
35.9
39.0
40
28.2
32.1
36.8
40.8
44.0
45
32.8
36.7
41.6
45.6
49.0
50
37.1
42.2
46.3
50.4
53.9
55
Not allowed as standard but the coolant temperature must be 5 °C (41 °F) or above. Consult
an ABB representative if operation below coolant temperature 5 °C (41 °F) is required.
At an air temperature of 45 °C (113 °F) and relative humidity of 65% the coolant temperature
may not be below +36.8 °C (98.2 °F).
Example:
Maximum coolant inlet temperature:
52 °C (+125.6 °F) without derating of the converter
output capacity. Range above 52 °C (+125.6 °F) is allowed as follows:
Converter output current derating
Range
2.5% per 1 °C (1.8 °F) temperature increase
52…60 °C (125.6…140 °F)
Maximum temperature rise:
13 °C (55.4 °F); depends on mass flow.
Cooling and heating 125
Содержание ACS880-87LC-3200A
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Страница 75: ...b 3 a 2 6 c 4 Air flow direction is towards the converter module Maintenance 75 ...
Страница 85: ...14 Open the installation stand optional and place it in front of the module 14 Maintenance 85 ...
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Страница 112: ...Description CAN bus connection XCAN XCAN 112 BCU x5 control unit ...
Страница 116: ...116 Dimension drawings ...
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