American Power Conversion VS 50 - Manual (Page 43)

Magnum VS –48 Vdc User Manual Page 43
Battery Visual and Safety Inspection
Check that the battery temperature probe is firmly attached to the battery.
Check the mechanical integrity of the battery framing, racking, or cabinet. Tighten where necessary.
If there is a battery disconnect device fitted, ensure that it is properly connected and protected.
1. Check the general appearance and cleanliness of the battery. Clean if necessary. Use only approved
cleaning materials.
Visually inspect each cell for the following, and clean and neutralize if necessary. Document discrepancies on Site
form accordingly.
a. Cracks.
b. Case
leaks.
c. Post-seal leaks.
d. Pressure relief valve leaks (VRLA only).
e. Case swelling (VRLA only).
f. Terminal corrosion and connector corrosion.
2. Check the torque of all battery inter-cell connector in accordance with specifications. Re-torque if
necessary (annual only).
3. Measure and record ambient temperature.
6.3. Test
System Voltage Test
1. Verify with a voltmeter directly attached to the dc bus that the system voltage is correct.
2. System voltage should also agree with the battery float voltage set up in the battery parameters section.
Be sure to take into account the effects of temperature compensation and battery recharge current limit.
Rectifier Current Share Test
Verify that the highest rectifier current and the lowest current are within 5 A of each other.
System Current Test
Verify the System current equal to the total of the rectifier currents. System current should equal the total current of
the loads as well as any battery current.
Rectifier Alarm Test
1. Verify that all of the rectifiers report RFA Alarm is off.
2. Remove 1 rectifier and verify that you get a Minor alarm for Rect 1 of n failure on the controller and the
customer remote alarm panel.
3. Remove the second rectifier and verify that you get a Major alarm for Rect 2 of n failure on the controller
and the customer remote alarm panel.
4. After the fan has completely stopped spinning, insert a plastic pen or plastic screwdriver into the fan blade
of one of the rectifiers and reinsert both rectifiers
5. Verify that you get the fan fail alarm on controller and the customer remote alarm panel.
6. Remove the fan fail device.
System Temperature Test
Verify that the system temperature is correct.