ABB ACS6080 User Manual page 62

Component
Control and
monitoring devices
Water pump
Water-to-water
heat exchanger
Expansion vessel
Ion exchange vessel
3-way valve
3BHS842007 E01 REV C
Table 3-4 Main components in a WCU cabinet (continued)
Description
Measure the temperature, pressure and conductivity of
the coolant. A solution based on a double-sensor
configuration is available as an option, to guarantee full
operation in case of single sensor failure.
Circulates the coolant through the internal cooling circuit.
The standard solution is based on redundant pumps (one
of the two pumps is always on standby and starts
automatically if the running pump fails).
An alternative solution based on one pump is
also available.
Transfers the heat from the internal cooling circuit to the
external cooling circuit.
Used for pressure compensations
The ion exchange vessel in the water treatment circuit
deionizes the coolant of the internal cooling circuit and
maintains the conductivity.
The three-way valve controls the flow of the external
cooling liquid through the water-to-water
heat exchanger.
03 POWER ELECTRONICS AND CABINET FEATURES
ACS6080 USER MANUAL 62/238