3 Operating the Power Supply Locally

Power Supply OK Signal

The Power Supply OK signal on the J1 connector indicates a fault condition in the power supply. J1 pin 16 is a TTL output signal. Pins 2 and 3, which are connected internally, are the signal common. All pins are optically isolated from the power supply output. With no fault, Power Supply OK is high, with a maximum source current of 2mA. When a fault occurs, Power Supply OK is low, with a maximum sink current of 1mA. The following faults set this signal low:

Over-voltage protection Over-current protection Over-temperature protection AC line failure

Enable/Disable signal true Shut Off signal true Remote interface failure Output turned off

Daisy-Chained Output Shut-down

It is possible to configure a multiple power supply system to shut down all the units when a fault condition occurs in one of the units. SW1 setup switch 5 must be in the Down position to enable the daisy- chain operation. Other switches are unaffected by this setting.

If a fault occurs in one unit, its Power Supply OK signal is set low and its display will indicate the fault. The other units shut off with their displays indicating SO. When the fault condition is cleared, all units will recover according to their Safe-Start or Auto-Restart settings.

The following figure shows three units daisy-chained - the same connection method can be used with additional units. The Shut Off and Power Supply OK signals are referenced to Chassis Common (J1 pins 2 and 3).

POWER SUPPLY

#1

J1-2,3 J1-16

J1-15

Com

Supply OK

Shut Off

POWER SUPPLY

 

 

#2

 

 

 

J1-2,3

J1-16

J1-15

 

 

 

 

 

Com

 

Supply OK

Shut Off

 

 

 

 

 

 

POWER SUPPLY

#3

J1-2,3

J1-16

J1-15

 

 

 

 

Com

 

Supply OK Shut Off

 

 

 

 

 

Analog Programming of Output Voltage and Current

 

J1 pin 12, pin 22, and pin 23 are internally connected to the negative sense

CAUTION

terminal. Do not reference these pins to any terminal other than the negative

 

 

sense terminal, as it may damage the unit.

 

 

 

In Local mode, the output voltage and current is programmed with

 

the front panel VOLTAGE and CURRENT knobs or over the remote

 

interface. In Analog mode, the output voltage and current can be

 

programmed either by an analog voltage or by resistors connected to

 

the rear panel J1 connector.

42

Series N5700 User’s Guide

Page 42
Image 42
Agilent Technologies N5700 manual Analog Programming of Output Voltage and Current, Power Supply OK Signal

N5700 specifications

Agilent Technologies, now part of Keysight Technologies, is renowned for its innovative solutions in electronic measurement and instrumentation. Among its impressive portfolio, the Agilent N5700 series of power supplies stands out, providing precision, reliability, and versatility for a range of applications in test and measurement.

The N5700 series features multiple models, each designed to meet the varying power requirements of test systems and electronic devices. One of its key characteristics is its adjustable output voltage and current, allowing users to set parameters according to specific test needs. With outputs ranging from 0 to 60 V and up to 6 A, the N5700 series caters to both low and high-power applications effectively.

A notable technology integrated into the N5700 series is its advanced measurement capabilities. The built-in voltmeter and ammeter enable real-time monitoring of output voltage and current, ensuring precise control over the power supplied to the device under test. This feature is particularly advantageous in troubleshooting and optimization scenarios, providing engineers with immediate feedback on performance.

The N5700 also embraces the latest in power supply control technology with its intuitive user interface. The front panel incorporates a clear display and simple navigation controls, allowing users to program settings easily and access functions without extensive training. Additionally, remote programming capabilities via GPIB, USB, or LAN facilitate integration into automated test setups, enhancing productivity and efficiency.

Thermal management is another hallmark of the N5700 series. Its design ensures effective heat dissipation, enabling reliable operation even under demanding conditions. This robustness is critical in environments where consistent performance is essential, such as in research laboratories and manufacturing facilities.

Furthermore, safety features are thoughtfully included in the N5700 series, such as overvoltage protection, overcurrent protection, and short-circuit protection. These elements assure users that their devices and test setups remain secure during testing, minimizing the risk of damage.

In summary, the Agilent N5700 series power supplies encapsulate the fusion of precision, advanced measurement technology, user-friendly design, thermal management, and robust safety features. This combination makes them an invaluable tool for engineers and researchers engaged in electronic testing and development across various industries. With its versatility and reliability, the N5700 series continues to play a pivotal role in advancing electronic measurement methodologies.