Alpha Technologies Cordex 48-1kW 19 6000W Installation - Manual (Page 27)

030-706-B2 Rev B Page 19 of 26
6.10.3 Battery –48V
The Battery -48V should be connected at the battery system voltage terminal for CXCM reference when a battery
disconnect device is used. It is critical to CXCM operation as it ensures a source of power to the CXCM should
the disconnect device open the circuit. A 1/4” spade (quick connect) connector is provided on the CXCM portion
of the shelf backplane. #18AWG wire is recommended.
6.10.4 Analog Inputs
CAUTION: Ensure the correct polarity is used for all input cable terminations.
The analog input channels are used to monitor various types of electrical signals. Some of the analog channels
are reserved for specific signals, while others are designated as general-purpose inputs, which accommodate
various types of analog signals. The input cables should be bundled together and routed through the entry holes
of the shelf, if applicable.
6.10.4.1 Voltage
Voltage Input #1 (discharge voltage per CXC software) terminals on the shelf provide
connections to an optional secondary voltage input. For example, this can be terminated to the
load side of an LVD contactor to monitor load voltage.
Voltage Input #2 (charge voltage per CXC software) is wired internally to the rectifier output
voltage of the shelf. This is used as the reference for system alarming (such as high voltage)
and control (such as low voltage disconnect).
6.10.4.2 Current
Current Input #1 terminals provide connections (factory-installed) to the system current shunt
used to monitor discharge (load) current.
6.10.4.3 General-Purpose
Terminals provide connection pairs for various analog inputs such as temperature sensors.
These are configured at the time of ordering. The configuration determines whether the signals
allowed are to be bipolar (may vary in either polarity from zero; e.g., +/-60VDC) or unipolar (may
vary positive from zero; e.g., 0 to +60VDC).
NOTE: The CXC software is pre-configured to monitor converter voltage through input channel GP1.
Temperature Sensor
Terminals, of the general purpose grouping, may be configured as temperature input channels
and provide connections for up to two temperature sensors. A voltage is supplied to these
terminals for sensor measurements.