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100 Internal cooling circuit
1
HS
HS
A/L
a
b
d
1
Supply modules. The drawing shows the configuration of a diode supply unit with two modules, 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.
2
Inverter modules
3
To/From cooling unit
A/L
Air-to-liquid heat exchanger
HS
Heat sink
a
Inlet valve
b
Inlet-side drain valve
c
Outlet valve
d
Outlet-side drain valve
The coolant used with ACS880 liquid-cooled drive systems is Antifrogen® L 25% or 50%
mixture. See
Coolant specification (page
2
A/L
HS
A/L
c
a
b
104).
2
A/L
HS
A/L
c
d
3
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