Turn-on check-out, Before check-out, Constant voltage check – Agilent Technologies System DC N5700 User Manual

Page 34: Ovp check, Before turn-on

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3 Operating the Power Supply Locally

34

Series N5700 User’s Guide

Turn-On Check-Out

Before Turn-On

Ensure that the power supply is configured as follows:

 The unit is connected to an appropriate AC source as

described in chapter 2.

 The POWER switch is in the off position.

 Sense connector pins 1 and 2 are jumpered; sense connector

pins 4 and 5 are jumpered.

 All switches on Connector J2 are in the down position.

WARNING

SHOCK HAZARD Be aware that hazardous voltages can be present on the
output terminals. Do not set the output voltage above 40 VDC during the turn-
on check-out procedure. Check to make sure that the startup mode is set to
Safe-Start (see page 40).

Constant Voltage Check

 Turn the POWER switch on.

 Turn the output on by pressing the OUT ON button. The

green OUT ON indicator should be illuminated.

 The green CV indicator should also be illuminated. If the CC

indicator is illuminated, rotate the current knob until the CV
indicator becomes illuminated.

 Rotate the voltage knob while observing the DC VOLTS

display. The output voltage should vary while the knob is
turned. The voltage range is from zero to the maximum rated
output for the power supply model.

OVP Check

 Rotate the voltage knob and set the output voltage of the unit

to 50% of its full-scale rating or 30 volts, whichever is lower.

 Press the OVP/UVL button once so that the DC AMPS display

indicates OUP. The DC VOLTS display shows the OVP level.

 Use the voltage knob and set the OVP level of the unit to 75%

of its full-scale voltage rating or 40 volts, whichever is lower.

 Wait a few seconds until the DC VOLTS display returns to

show the output voltage.

 Use the voltage knob and raise the output voltage of the unit

until it approaches the OVP setting. Check to make sure that
the output voltage cannot be set higher than the OVP setting.

 Press the OVP/UVL button again. Rotate the voltage knob and

reset the OVP level of the unit to its maximum setting.

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