Alpha Technologies CXPS 48-1T 48V Pos Gnd - Manual (Page 16)

Argus Technologies Ltd. 053-392-C0 Rev A WC
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2.3.3 Analog Input Channels
The CXCM4 has analog input channels for voltage, current, and temperature.
2.3.3.1 Voltage Inputs
Two voltage input channels, V1 and V2, provide monitoring of discharge and charge voltage.
The CXCM4 software is pre-configured to monitor V2 for both load and battery voltage. V2 is
used as the system reference for rectifier float voltage, low voltage disconnect (LVD), system
high voltage alarm, and system low voltage alarm. V1 is available for additional voltage
measurements.
2.3.3.2 Current Inputs
The CXCM4 software is pre-configured to monitor for load current using an external 50mV
current shunt.
2.3.3.3 Temperature Inputs
Two temperature input channels, T1 and T2, provide monitoring of battery temperature and
temperature compensation (temp comp) or room/ambient temperature. A voltage is supplied by
the CXC to these terminals to power the temperature sensors.
2.3.4 Digital Input Channels
The CXCM4 can accommodate up to four channels and can monitor digital alarm/control signals from rectifiers,
converters and many other types of equipment.
2.3.5 Alarm and Control Output Relays
The CXCM4 contains eight Form C digital alarm output relays to extend alarms and control external apparatus.
Each internally generated alarm or control signal may be mapped to any one of the relays, or, several signals may
be mapped to just one relay or none at all.
2.3.5.1 LVD Control (External Option)
The LVD Control functions can be hardwired directly from the assigned relay output to an
optional LVD override control and distribution alarm card. This provides a safety measure to
protect against load disconnect during CXCM4 reset or replacement; e.g. when the controller is
off-line. Operators may also perform test and maintenance procedures on the CXCM4 without
disturbing the load.
2.3.6 System Fail Alarm/Relay
The CXCM4 system fail alarm (K0) activates because of a major internal failure. During such a condition, the unit
will attempt to reset, but if this fails, an alarm condition will be extended to a relay and the red LED on the front
panel will illuminate. This is a fail-safe signal to the remote monitoring equipment; i.e. alarm will be extended even
if power to the unit is interrupted.
2.3.7 Network Connection and Remote Communications
The Cordex system can be set up, monitored and tested via ETHERNET 10/100 Base-T serial data connection.
The communication protocol supports a web interface. All alarming and control of Cordex rectifiers is
accomplished with a CXC via a CAN bus.
A step-by-step connection wizard – provided to establish remote communications with your CXC – is available via
the Argus website (www.argusdcpower.com).