+S

 

 

 

-S

 

 

 

Twisted

-S

+S

 

pair

+V

As short as possible

MASTER

 

 

 

+S

POWER SUPPLY -V

Twisted

pair

J1-25

 

 

 

Parallel

 

 

 

Current Program

 

J1-8 J1-12 J1-10

 

 

SLAVE

 

+V

 

POWER SUPPLY

-V

-S

-S

+S

Twisted

 

 

 

 

pair

 

 

 

-S

 

 

 

+S

Remote Sensing

Installation 2

LOAD

One of the units operates as a master and the remaining units are slaves. The slave units operate as controlled current sources following the master output current. In remote operation, only the master unit can be programmed by the computer while the slave units may be connected to the computer for voltage, current and status readback only.

It is recommended that each unit supplies only up to 95% of its current rating because of the imbalance that may be caused by cabling and connections voltage drops.

Setting up the Master Unit

Connect the sensing circuit for either local or remote sensing as shown in the previous figures. Set the master unit output voltage to the desired voltage. Program the current limit to the desired load current limit divided by the number of parallel units. During operation, the master unit operates in constant voltage mode, regulating the load voltage at the programmed output voltage.

Setting up the Slave Units

Set the rear panel setup switch SW1 position 2 to it’s up position. Connect J1 pin 10 (Current Program) of the slave unit to J1 pin 25 (Parallel) of the master unit. Also connect a short between J1 pin 8 and J1 pin 12. The output voltage of the slave units should be programmed higher than the output voltage of the master unit to prevent interference with the master unit’s control. The current limit of each unit should be programmed to the desired load current limit divided by the number of parallel units.

Series N5700 User’s Guide

29

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Agilent Technologies 5746A, 5752A, 5744A, 5743A, 5748A Setting up the Master Unit, Setting up the Slave Units, Remote Sensing

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