Functional Tests; Power-On Check; Voltage Mode Operation Check; Current Mode Operation Check - Xantrex XPD 120-4.5 Operating Manual

Functional Tests

These functional test procedures include power-on and front panel function checks
as well as voltage and current mode operation checks.
Power-on 1. Ensure that the front panel power switch is in the extended (OFF) position and
Check
2. Ensure that the AC line voltage is within operating range.
3. Plug the line cord into a grounded AC outlet.
4. Push the power switch to turn on the power supply.
After a short power-on delay, the display and the red current mode LED lights. The
meter reading remains at zero.
For more about standard operations, see
Voltage Mode 1. Ensure that the front panel voltage and current control are turned fully
Operation
Check
2. Set the power switch to ON.
3. Rotate the current control one half-turn clockwise. Slowly rotate the voltage
4. Set the power switch to OFF.
Current Mode 1. Ensure that the front panel power switch is set to OFF.
Operation
2. Rotate the voltage and current controls fully counter-clockwise.
Check
3. Rotate the voltage control one half-turn clockwise.
4. Connect a short circuit across the output terminals. Use leads of sufficient
5. Set the power switch to ON.
6. Rotate the current control slowly clockwise. The control range should be from
7. Set the power switch to OFF.
1.
Release A
the voltage and current controls are in their fully counter-clockwise positions.
counter-clockwise.
control clockwise and observe the digital meter. Minimum control range should
be from zero to maximum rated output. Observe the bar graph meter to see that
it tracks as the voltage rises. Verify that the voltage mode indicator light is ON.
current carrying capacity.
zero to the maximum rated output
follows the rise in current and that the current mode indicator light is ON.
On 7.5-67 model, front panel current is limited to 30 A. Short the rear busbar terminals to test the
full current range is required.
"Standard Operation" on page
1
. Also check that the current bar graph meter
Section 2. Installation
Functional Tests
35.
29