Step 5: Performing Functional Tests

Voltage and Current Mode Operation Checks

To perform the voltage and current mode operation checks:

1.

Ensure that the front panel power switch is in the On position and the

 

 

output is disconnected.

 

2.

If the OUTPUT ENABLE Main button is illuminated, press the

 

 

 

button to turn off the output.

2

3.

To check voltage mode operation, turn the 9-position mode control to

 

the VOLTS position.

 

 

 

The voltage set point will blink dimming and then return to full brightness. For more information, see “Local Operation” on page 3–1.

4.Adjust the voltage to 5 V.

5.To check current mode operation, turn the 9-position mode control to AMPS position.

Verify that the current set point is blinking in the output current display.

6.Adjust the current to 1 A.

7.Press the OUTPUT ENABLE Main button to turn On.

8.Turn the front panel power switch to the Off position.

9.Turn the front panel power switch to the On position.

10.Connect a short circuit across the output terminals. Use leads of sufficient current carrying capacity. (See “Step 4: Selecting Load Wires”.)

11.Press the OUTPUT ENABLE Main button to enable the output. The button will be illuminated when the output is enabled.

CC Mode LED illuminates and the voltage and current are displayed. CV Mode LED illuminates and the preset load current is displayed.

12.Turn the front panel power switch to the Off position.

M370078-01

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Xantrex Technology XG 850 manual Voltage and Current Mode Operation Checks