Cooling Circuit For Heat Sinks Manufactured Out Of A Copper-Nickel Alloy - Siemens SINAMICS S120 Equipment Manual

9.1.1

Cooling circuit for heat sinks manufactured out of a copper-nickel alloy

To ensure an optimum heat sink service life, please note the following specifications for the
copper-nickel alloy heat sinks (Active Line Modules and Motor Modules HXL and JXL):
● Common cooling circuit for converter, motor and system, which dissipates the heat to a
cooling system via a water-water heat exchanger.
● Cooling circuit pipes, fittings made of stainless steel (Nirosta) or steel (ST37) with
antifreeze in the coolant.
1 Sight glass
2 T piece
3 Line d1
4 Line d2
5 Line d3
6 Ball valve d2
7 Ball valve d3
8 Hose connection at the device
9 Hose, see Chapter "Materials (Page 264)"
10 Hose connection at the ball valve
A Intake, cooling water primary circuit
Figure 9-1 Recommendation for a common circuit to cool converter, motor and system
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
Cooling circuit, coolant properties and protection against condensation
47 Vent
52 Temperature sensor
54 Pressure sensor
60 Pump
61 Three-way bypass valve
63 Safety release valve
65 Ball valve d1
71 Filter mit automatic backflushing or dirt trips, fine filter
100 μm
93 Reservoir/expansion chamber
B Return, cooling water primary circuit
9.1 Cooling circuits
245