Output Current Monitor Circuit Calibration - Xantrex XFR 2800 Operating Manual

Output
1. Ensure that the power supply is turned OFF. Disconnect any load.
Current
2. Set SW1 switch 6 OPEN to select 0-5 V output current monitor range, CLOSED
Monitor
Circuit
3. Connect the shunt and DVM across the power supply output to read the output
Calibration
4. Turn the current control fully counter clockwise, then turn on the power supply.
5. Set the power supply's output current to 1% of the model-rated output. See Note.
6. Adjust the output current monitor offset (R394) until the monitor DVM indicates
7. Set the power supply output current to the model-rated output.
8. Adjust the output current monitor range (R383) until the monitor DVM indicates
Repeat this procedure until the monitor signal is 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.
Release 2.1
for 0-10 V.
current. Connect a second DVM between the rear panel J2 connector terminals
12 (output current monitor) and 11 (current monitor signal return).
1% of the readback scale. (50 mVdc for 0-5 V readback or 100 mVdc for
0-10 Vdc readback.)
100% of the readback scale. (5 Vdc for 0-5 V readback or 10 Vdc for 0-10 Vdc
readback.)
Calibration
Calibrating for Readback Accuracy
85