A/L
HS HS
a c
db
a
db
c
A/L A/L
A/L
HS
HS
A/L
1
2
3
2
Supply modules. The drawing shows the configuration of a diode supply unit, ie. there is a common
air-to-liquid exchanger in the cubicle. With an IGBT supply unit, each module has a dedicated air-to-
liquid exchanger as shown for item 2.
1
Inverter modules2
To/From cooling unit3
Air-to-liquid heat exchangerA/L
Heat sinkHS
Inlet valvea
Inlet-side drain valveb
Outlet valvec
Outlet-side drain valved
The coolant used with ACS880 liquid-cooled drive systems is Antifrogen® L 25% or 50%
mixture. See Coolant specification (page 84).
80 Internal cooling circuit
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