7 Preventive Maintenance (continued)
7.4Internal Battery Procedure
c)Use the infrared thermometer to measure the ambient temperature near the battery module and the internal temperature of the battery module. Note that the best place to read ambient temperature is on the floor immediately behind the battery module. Battery module internal temperature should be taken at one of the jars on a top tier.
d)Use the digital
e)Replace the tray and
f)Repeat steps d) through e) for the remaining battery trays.
g)When the battery cabinet inspection is complete, replace the cover. Turn on the Main input circuit breaker and Bypass input breaker on the UPS. When the static switch is operating, turn off the Manual Bypass switch
h)Verify using the LCD display that the main input and DC bus voltages are correct, then press the ON switch. Verify that the inverter starts and operates correctly per the LED panel and LCD display.
Appendix A Service Equipment and Tools
Recommended Equipment and Tools
•Laptop: with series COM port
•Multi-Meter
•Oscilloscope
•Clamp Meter: for measurement of current
•Screwdriver:
•Hex Wrench: 5mm and 6mm
•Socket Wrench: 13mm and 17mm
•Diagonal Cutters
Software Tools
•NH_SYS_V1_3B1030.exe: For system EEPROM parameter settings and calibration.
•FSL 3.75.exe: For upgrading the system MCU’s firmware on a
•NH_PM_V1_4B1207.exe: For upgrading the power module’s firmware.
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