Xantrex Technology XMP 2600 - Manual (Page 29)

Load Connection Installation
Power
Module's
Output
Connector
Each power module has it's own connector, accessible from the rear of the unit.
Below each connector, a marking of the module's voltage and current rating can be
seen. The connector carries two positive and two negative output pins and two sense
lines.
The load male connectors are supplied with the unit, and are to be wired by the user.
Wiring instructions can be found under the following "Load Connection" paragraph.
Load Connection
The loads are connected to the power modules through wires connected to the
supplied load connector. The user must decide upon the wires to be used, and the
connection point of the sense lines.
Wire Size
The wires size depends on the load current to be carried.
The recommended wire sizes are as follow:
Load current AWG (mm 2 ) Resistance/m
0A < I < 5A 1 x AWG18 (1.0mm 2 ) 21.7 mOHM/m
5A < I < 10A 1 x AWG16 (1.5mm 2 ) 13.7 mOHM/m
10A< I < 20A 1 x AWG14 (2.5mm 2 ) 8.6 mOHM/m
20A< I < 40A 2 x AWG14 (2.5mm 2 ) ½ x 8.6 mOHM/m
The necessary pins are supplied with the connectors. They fit to AWG 14 wire for
crimping. The wires can be soldered as well, but special care must be taken to avoid
tin spreading over the external part of the pin (which may prevent the pin's insertion
in the connector's receptacle).
For the sense lines, AWG 22, or thicker, wires can be used.
The modules' outputs are isolated from ground, and can be floated up to ±240VDC.
This voltage must not be exceeded, since damage may be caused to the modules.
The fact that the outputs are isolated from ground, enables the user to connect
modules to provide positive and negative voltages, connect outputs in series, etc.
Local vs.
Remote
Voltage
Sensing
The +/-SENSE lines have two roles in the power modules: they serve as feedback
for output voltage regulation, and for load voltage measurement. The modules set
the output voltage to meet the programmed voltage at the +/- SENSE lines
connection point.
The measured load voltage (VLOAD) is the voltage at the +/-
SENSE lines.
The measured output voltage (VOUT) is the internal voltage at the
module's output, before the output connector.
There are two ways to connect the "+/-SENSE" terminals (available at the output
load connectors): either local sensing or remote sensing.
In local voltage sensing connection, the +/-SENSE lines are shorted to the
respective +/-VOUT lines near the output load connector (Usually within the
10 XMP 2600 User’s Guide rev. 1.0