Functional Tests; Equipment Required; Power-On Check; Voltage Mode Operation Check - Xantrex XHR 7.5-130 Operating Manual

Functional Tests

The functional test procedures include power-on and front panel function checks as
well as voltage and current mode operation checks.
Equipment
•
Required
•
Power-on 1. Ensure that the AC power switch is in the OFF position.
Check
2. Ensure that the output sense lines are connected in the default configuration. On
3. Turn the voltage and current controls fully counter-clockwise.
4. Connect the unit to an AC outlet.
5. Turn the front panel power switch to ON.
After a short, power-on delay, the front panel digital meters light up. Both voltmeter
and ammeter displays read zero.
Voltage Mode 1. Ensure that both the voltage and current controls on the front panel are turned
Operation
Check
2. Connect the DVM to the output terminals on the rear panel, observing correct
3. Turn the current control 1/2-turn clockwise.
4. Slowly turn the voltage control clockwise and observe both the front panel
5. Compare the DVM reading with the front panel voltmeter reading to verify the
6. Turn the front panel power switch to OFF.
Revision A
Digital voltmeter (DVM) rated better than 0.5% accuracy.
DC shunt 1 mV/A (±0.25%) with connecting wire. The recommended current
ratings for the DC shunt and the wire must be at least 10% more than the output
current of the power supply.
low voltage models, local sense jumpers connect terminal J2-2 on the J2
connector to the positive bus bar, and terminal J2-1 to the negative bus bar. On
high-voltage models, terminal J2-2 connects to positive sense (+SNS) and
terminal J2-1 to return sense (–SNS) on the wire clamp connector.
fully counter-clockwise.
polarity.
voltmeter and the DVM. The voltage mode LED will turn on.
accuracy of the internal voltmeter. The minimum control range is from zero to
the maximum rated output for the particular power supply model.
Installation
Functional Tests
37