Example Of The Ac Fuse Cooling - ABB ACS880-304 +A003 Series Hardware Manual

Example of the AC fuse cooling

The AC fuses must be cooled by forced cooling. If the fuses are not located in the same
cubicle with the supply/rectifier module, the module cooling fan does not supply the cooling
air for the fuses but you must use a separate cooling fan.
The following figures show an example of the cooling system using a thermal switch for the
air temperature monitoring near the AC fuses.
2
MAIN SUPPLY
SUPPLY
DISCONN. SWITCH
=-Q1
=-F1.1
;1L1
1 2 1 2
=-F1.2
;1L2
3 4 1 2
=-F1.3
;1L3
5 6 1 2
13 14
;1PE:1 050/10D
DEFAULT INPUT DESIGNATION
DI1...DI6; NOMINAL VOLTAGE 24VDC
-DI1
TEMP FAULT_01
-DI2
RUN ENABLE_01
-DI3
MCB FEEDBACK_01
-DI4
CIRCUIT BRK FAULT_01
-DI5
EARTH FAULT_01
-DI6
RESET_01
Note: The connection of temperature monitoring requires proper insulation between busbars and thermal
switch.
1
TEMPERATURE MONITORING
MAIN
CONTACTOR
=-Q2
1 2
=-F6
3 4
1 2
5 6
020/13D
Part of ZCU-14 shown from sheet 050
14 13 14 13 14 13
14
14 11
12
24 21
22
Cabinet construction 35
Description
1 Thermal switch
2 Cooling fan
;F6:2
9E
;X22:35
050/13A
;XDI:1
001/9E
;X21:30
13A ;X22:1
020/6E
13
;Q24:4
020/10C
14 11
12
10
DSU MODULE
=-T01
-X1.1
1
2
~
-X7
1
2
3
4
5
6
7
8