Alpha Technologies CXPS 48-1.2-225 48 Vdc - Manual (Page 17)

053-691-B1 Rev E Page 9 of 33
2.3.7 Analog input channels
The controller is supplied with analog input channels for voltage, current, and temperature.
Voltage inputs
Two voltage input channels, V1 and V2, are used to monitor the discharge and charge voltage. The
controller software is pre-configured to monitor V1 for load voltage and V2 for battery voltage. V2, which is
wired internally, is used as a system reference for the rectifier float voltage, low voltage disconnect (LVD),
system high voltage alarm, and system low voltage alarm.
Current inputs
The controller software is pre-configured to monitor I1 for load current. It is wired internally to the system
current shunt.
Temperature inputs
Two temperature input channels, T1 and T2, provide monitoring of battery temperature and temperature
compensation (temp comp) or room/ambient temperature. Voltage is supplied to these terminals to power
the temperature sensors.
2.3.8 Digital input channels
The controller can accommodate up to two (2) digital input channels that can monitor digital alarm/control signals
from rectifiers, converters, and other types of equipment.
2.3.9 Alarm and control output relays
The controller contains four (4) Form C digital alarm output relays, which are used to extend alarms and control to
external apparatus. Each internally generated alarm or control signal may be mapped to any one of these relays,
or several signals may be mapped to just one relay or none at all.
2.3.10 Network connection and remote communications
The Cordex system can be set up, monitored, and tested via an Ethernet 10/100 Base-T serial data connection.
The communication protocol supports a web interface. A CAN bus is used to transmit all alarm and control
functions between the controller and rectifiers.
A step-by-step connection wizard is available. It installs a software package that provides remote communications
with your controller. It uses the Windows® 2000/XP operating system and is available at www.Alpha.ca .