Voltage Programming Circuit Calibration; Current Programming Circuit Calibration - Xantrex XHR 7.5-130 Operating Manual

Voltage
1. Ensure that the power supply is turned OFF. Disconnect any load.
Programming
2. Connect the programming source between J2 terminals 7 (output voltage
Circuit
Calibration
3. Connect the DVM to the power supply output.
4. Turn the power supply ON.
5. Apply 1% of program voltage.
6. Adjust the voltage program offset potentiometer (R72) until the DVM reads 1%
7. Apply 100% of program voltage.
8. Adjust the voltage program scale potentiometer (R96) until the DVM reads
Repeat this adjustment until output levels are within the product specifications as
found in
Current 1. Ensure that the power supply is turned OFF. Disconnect any load.
Programming
2. Connect the program source between J2 connector terminals 8 (output current
Circuit
Calibration
3. Connect the shunt and DVM across the power supply output. See note below.
4. Turn the power supply ON.
5. Apply 1% of program voltage.
6. Adjust the current program offset potentiometer (R75) until the DVM indicates
7. Apply 100% of program voltage.
8. Adjust the current program scale potentiometer (R98) until the DVM indicates
Repeat this adjustment until output levels are adjusted to power supply specifications
as found in Section 1, or to the accuracy your application requires.
Notes:
•
•
Revision A
programming input) and 6 (program/monitor signal return).
of the model-rated output voltage.
100% of the model-rated output voltage.
Section 1, or to the accuracy that your application requires.
limit programming input) and 6 (program/monitor signal return).
1% of the model-rated output current. See note below.
100% of the model-rated output current. See note below.
The DC shunt-DVM combination must be rated better than 0.5% accuracy.
Calculate the required DVM reading using I = V/R, where I is the current, V is
the DVM reading, and R is the DC shunt resistance.
Calibrating for Programming Accuracy
Calibration
79