Calibrating For Programming Accuracy; Voltage Programming Circuit Calibration; Voltage Programming Calibration Procedures - Xantrex XKW 8-350 Operating Manual

Calibration

Calibrating for Programming Accuracy

Calibrating for Programming Accuracy
The offset and range of the voltage and current programming circuits are calibrated
for default 0-5Vdc programming signals at the factory. Recalibration may be
necessary when you use custom 0-10Vdc programming or when you switch back to
0-5Vdc programming after previously calibrating for 0-10Vdc programming.
Voltage
Programming
Circuit
Calibration
Table 4.1 Voltage Programming Calibration Procedures
Function & designation
of multiturn trim pots
Voltage Program Offset
(R93)
Voltage Program Scale
(R60)
Repeat this procedure until the voltage programming is adjusted to the desired
accuracy.
82
Step Action
1 Disconnect any load. Connect a DVM rated at better than 0.5%
accuracy to the power supply output.
2 Apply 1% of program voltage. Example: 0.1 for 0-10Vdc or 0.05 for
0-5Vdc programming source
3 Adjust R93 until the DVM reads 1% of the rated output voltage.
Example: 0.4Vdc for 40V Model
1 Disconnect any load. Connect a DVM rated at better than 0.5%
accuracy to the power supply output.
2 Apply 100% of program voltage. Example: 10V for 0-10Vdc or 5V for
0-5Vdc programming source
3 Adjust R60 until the DVM reads 100% of the rated output voltage.
Example: 40Vdc for 40V Model
Operating Manual for XKW 3kW Series Power Supply