Xantrex Technology XFR 2800 - Manual (Page 85)

Calibration
Calibrating for Programming Accuracy
Release 2.1 83
Current Limit
Programming
Circuit
Calibration
1. Ensure that the power supply is turned OFF. Disconnect any load.
2. Connect the program source between J2 connector terminals 8 (output current
limit programming input) and 7 (current program signal return).
3. Connect the shunt and DVM across the power supply output.
4. Turn the power supply ON.
5. Apply 1% of program voltage.
6. Adjust the current limit program offset (R469) until the shunt/DVM indicates
1% of the model-rated output current. See Note.
7. Apply 100% of program voltage.
8. Adjust the current limit program range (R459) until the shunt/DVM indicates the
model-rated output current. See Note.
Repeat this procedure until output levels are adjusted to power supply specifications
(see Section 1) or to the accuracy that your application requires.
Note:Calculate the required DVM reading using V= IR where V is the DVM
reading, I is the current, and R is the DC shunt resistance.