Alpha Technologies CXPS 48-1.8-M2, 48V Pos Gnd - Manual (Page 35)

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5.10.2.2 Programming the Digital Input
The digital input channels can be programmed for “active high” or “active low.” Active high
indicates “alarm on the presence of a ground signal” and active low indicates “alarm on the
removal of a ground signal.” See CXC Software manual for detailed instruction on
programming.
Voltage Range (VDC)
Voltage Level (VDC)
Considered As “0” (Off) Voltage Level (VDC)
Considered As “1” (On)
0—60
(system voltage setting)
0—3 18—60
Table C–Voltage level definitions for digital inputs
5.10.3 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.
5.10.3.1 Voltage
Voltage Input #1 (load voltage per CXC software) terminals (V1) on the shelf is factory wired to
monitor the battery voltage.
Voltage Input #2 (battery voltage per CXC software) is wired internally (V2) 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).
5.10.3.2 Temperature Sensor
Temperature Probe input channels (T1 and T2) provide connections for temperature sensors. A
voltage is supplied to these terminals for sensor measurements.
5.10.3.3 Current
Current Input #1 (discharge or load current per CXC software) terminals (I1) is factory wired to
the battery shunt in this system.