ABB GPS2436 User Manual page 68

STEP
Using the Float Settings Menu Screens, select Set Point.
8.
Use the Arrows, and UP/DOWN keys to change the system float voltage setpoint to its original value This
9.
value must be at least 0.5V below the HV alarm threshold setting. Press ENTER to save.
Controller Observations:
•
The plant voltage returns to it's original value
•
Power Major alarm (PMJ) retires
10.
•
RECT and MAJ LEDs are extinguished
Rectifier Observations:
• Rectifier is operating normally
Battery on Discharge Alarm
STEP
NOTE: If the BD alarm was observed during the High Voltage Shutdown test
this test can be disregarded.
From the front panel follow the path(Voltage Alarms):
1.
Note the setting of the Battery on Discharge Threshold.
2.
With a dummy load added to the plant, operate all rectifiers to STBY
3.
until the plant voltage drops below the BD (FLOAT) threshold.
Controller Observations:
•
PMJ Alarm is active
4.
• BD and MAJ LEDs are illuminated
5. Turn on all rectifiers
Controller Observations:
• PMJ Alarm retires
6.
• BD and MAJ LEDs are extinguished
• System Voltage is normal
Page 68
© Copyright 2023 ABB. All rights reserved.
Action for Testing High Voltage Shutdown Alarm
Action for Testing the Battery on Discharge Alarm
GPS2436_MAN Rev. 1.3