GE Industrial Solutions CPS6000-M2 - Manual (Page 9)

CPS6000-M2 Installation Guide H5694720
Issue 8 January 2008 9
Millennium II Controller
The Millennium II controller is located on the door of the dc distribution. It uses an RS485 bus to
serially monitor and control rectifiers, ringers and peripheral modules called RPM’s. It can also
monitor and control external power equipment, including standby generators, converter plants,
and inverters.
Local viewing and setting of system parameters and various alarm thresholds, user-definable
alarm inputs and relays can be accessed either by a LCD graphics display with intuitive
navigation mounted on the front door of the system or by the local RS-232 port connected to a
notebook computer.
Remote access is available through a 10/100 Base-T network connection to the world wide web
(internet) or your enterprise network (intranet) using standard browsers such as Microsoft Internet
Explorer® or Netscape® Navigator. There is also an optional BSM5 56k bps modem available.
The controller performs various battery management functions to ensure peak performance and
protection from thermal issues. In addition to monitoring for open battery breakers, measuring
current from the battery shunt and monitoring and control of a optional low voltage battery
disconnect contactor, the controller also measures battery string temperature and voltage with
either traditional analog thermistor based temperature probes or digital QS873 Voltage/Thermal
Probes (VT Probes) for slope thermal compensation. The VT probes connect in a daisy-chain
fashion with one probe mounted to the negative post of each mid-string battery using the serial 1-
Wire® bus.