3BHS212794 E01 REV M
ACS6000
USER MANUAL
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03 POWER ELECTRONICS AND CABINET FEATURES
Figure 3-17 Typical S800 I/O station
Note:
For more information, see:
• S800 I/O - General information and installation, user’s guide
• S800 I/O - Modules and termination unit, user’s guide
3.2.6
Water cooling unit (WCU)
The closed-loop water-cooling system transfers the heat losses of the
main power electronics components of the drive (eg, rectifier bridges,
inverter phase modules, DC-link capacitors) to the exterior.
Redundant pumps circulate the coolant through the feeding pipes to the
power electronics components and transfer the heat losses through the
return pipes and the water-to-water heat exchanger.
The water cooling units are accessible for maintenance even when the
drive is in operation.
Note:
For more information, see "ACS5000, ACS6000 and ACS6080 water
cooling unit WCU800 user manual" (3BHS821937 E01) and "ACS5000,
ACS6000 and ACS6080 water cooling unit WCU1400 user manual"
(3BHS835714 E01).
(1) TB 820 bus modem
(2) I/O modules
(3) Module termination unit
1
2
3
Table 3-4 Main components in a WCU cabinet
Component
Description
Swing frame
Contains the auxiliary power supply switch, the pump
motor starters and digital and analog I/O modules for
controlling and monitoring the water-cooling circuit.
Control and
monitoring devices
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.
