Array electronic 3750A, Manual, Page: 62 / 120

Chapter III Installation
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ARRAY
Using the wrong polarity, when the reverse voltage is greater than -.3V, the reverse voltage alarm
function will be tripped.
Do not touch any of the input terminals when the unit is on.
Connecting the input terminal to the wrong polarity can damage the DUT and load.
Remote Detecting Connection
When the current flows through the load, the voltage between the input terminals is lower than the
output voltage due to the resistance of the wire connecting the power supply and the load. The
remote voltage detecting terminals can be used to get a more accurate voltage of the power supply.
The load will switch to the remote detecting state after the connection. Remote sense can be used
to help compensate for long cable length. The longer the cable, the higher the potential resistance
and inductance, therefore a short cable is best. For large inductance wire, twist the positive and the
negative load wires together can help to reduce the induced inductance, or use Vsense terminal to
compensate the voltage drop seen across the load leads, especially leads with higher resistance.
This is useful in CV, CP and CR mode. The wiring is as shown in Fig. 3-3.
Parallel Load Connections
When a larger power or current is need, two or more units can be operated in parallel.
Notes: Parallel operation can only be used in CC, CR and CP mode.
Please refer to Fig. 3-4 for the parallel connection wiring method.