Min. T
coolant
(°C)
T
air
(°C)
RH = 40%
RH = 50%
RH = 65%
RH = 80%
RH = 95%
-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 0 °C (32 °F) or above.
At an air temperature of 45 °C and relative humidity of 65% the coolant temperature may
not be below +36.8 °C
Example:
Maximum temperature rise:
Depends on heat losses and mass flow. Typically 10 °C (18
°F) with nominal losses and flow.
■
Pressure limits
Base pressure:
100 … 150 kPa (recommended); 200 kPa (maximum). “Base pressure”
denotes the pressure of the system compared with the atmospheric pressure when the
cooling circuit is filled with coolant.
Air counterpressure in the expansion tank:
40 kPa
Design pressure (PS):
600 kPa
Nominal pressure difference
(between main in/out lines): 120 kPa with 25/75% (volume)
coolant solution, 150 kPa with 50/50% (volume) coolant solution. This has to be taken into
account when dimensioning the liquid cooling circuit.
Maximum pressure difference
(between main in/out lines): 200 kPa
■
Coolant flow rate limits
The maximum coolant flow rate for all drive equipment is 1.3 × nominal. See the technical
data chapter for nominal values.
■
Cooling circuit materials
Materials used in the internal cooling circuit are listed below. These are also the only materials
that can be used in the external cooling circuit.
•
stainless steel AISI 316L (UNS 31603)
•
heavy gauge aluminum
•
plastic materials such as PA, PEX and PTFE
Note:
PVC hoses are not suitable for use with antifreeze.
142 Internal cooling circuit
Summary of Contents for ACS880-37LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 37LC drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 78: ...78 ...
Page 116: ...116 ...
Page 134: ...5 Set the real time clock 134 Maintenance ...
Page 144: ...144 ...
Page 167: ... Dimension drawing examples ACS880 37LC 0390A 7 with main contactor Dimensions 167 ...
Page 169: ...ACS880 37LC 1270A 7 with common motor terminal cubicle Dimensions 169 ...
Page 170: ...ACS880 37LC 1940A 7 with common motor terminal cubicle 170 Dimensions ...
Page 172: ...Location and size of input terminals Contact ABB for details 172 Dimensions ...
Page 174: ...Inverter module cubicle with two R8i modules bottom cable exit 174 Dimensions ...
Page 175: ...Inverter module cubicle with three R8i modules bottom cable exit Dimensions 175 ...
Page 176: ...Brake chopper cubicle D150 176 Dimensions ...
Page 178: ...Cubicle width 300 mm top cable exit 178 Dimensions ...
Page 179: ...Cubicle width 400 mm bottom cable exit Dimensions 179 ...
Page 180: ...Cubicle width 400 mm top cable exit 180 Dimensions ...
Page 181: ...Cubicle width 600 mm bottom cable exit Dimensions 181 ...
Page 182: ...Cubicle width 600 mm top cable exit 182 Dimensions ...
Page 198: ...198 ...
Page 200: ...200 ...