The following procedure ensures that the power supp
ly is operational and may be used as a basic
incoming inspection check. Refer to Fig. 4
2 for the location of the controls indicated in
Ensure that the power supply is configured to the default setting:
Off switch at Off position.
Dip switch: All positions at Down (“Off”) position.
J2 Sense connector: Configured to Local Sense as shown in Fig. 3
5: Sense connector default connection
For units equipped with IEEE option, ensure that the IEE
E_En switch is in Up (default) position (R
2, item 9 for location), if checkout is to be done in IEEE mode.
Connect the unit to an AC source as described in Section 3.7.
Connect a DVM with appropriate cables for the rated voltage to the output
Turn the front panel AC power switch to On.
Turn on the output by pressing the OUT pushbutton so the OUT LED illuminates.
Observe the power supply VOLT display and rotate the Voltage encoder. Ensure that the Ou
e varies while the VOLT encoder is rotated. The minimum control range is from zero to the
maximum rated output for the power su
Compare the DVM reading with the front panel VOLT display to verify the accuracy of the VOLT
front panel VOLT LED is On.
Turn Off the front panel AC power switch.
Ensure that the front panel AC power switch is at the Off position and the DVM connected to the
put terminals shows zero voltage.
Connect a DC shunt across the
output terminals. Ensure that the shunt and the wire current ra
ings are higher than the power supply rating. Connect a DVM to the shunt.
Turn the front panel AC power switch to the On position,
Turn On the output by pressing OUT pushbutton so the OUT LED
Observe the power supply CURRENT display and rotate the CURRENT encoder. E
Output Current varies while the CURRENT encoder is rotated. The minimum control range is from
zero to the maximum rated ou
put for the power supply model
Compare the DVM reading with the front panel CURRENT display to verify the accuracy of the
CURRENT display. Ensure that the front panel CURRENT LED is On.
Turn Off the front panel AC power switch.
Remove the shunt from the power supply output terminals.
Refer to Section 5.3 for explanation of the OVP function prior to performing the procedure below.
Turn the front panel AC power switch to the On position and turn on the output by pressing OUT
Using the VOLT encoder, adjust the Output
Voltage to approx. 10% of the unit voltage rating.
