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PRELIMINARY
7 Preventive Maintenance (continued)
Appendix A Service Equipment and Tools
7.4 Internal Battery Procedure
Recommended Equipment and Tools
Software Tools
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 fl oor 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 multi-meter to read the voltage across each tray. Note if the voltage is outside the range 130V to 138V for any tray.
e) Replace the tray and re-connect the Anderson connectors.
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.
• Laptop: with series COM port
• Multi-Meter
• Oscilloscope
• Clamp Meter: for measurement of current
• Screwdriver: Phillips-head and slotted
• Hex Wrench: 5mm and 6mm
• Socket Wrench: 13mm and 17mm
• Diagonal Cutters
• NH_SYS_V1_3B1030.exe: For system EEPROM parameter settings and calibration.
• FSL 3.75.exe: For upgrading the system MCU’s fi rmware on a NH-SYS-M board.
• NH_PM_V1_4B1207.exe: For upgrading the power module’s fi rmware.
• NH-Dry-Contact v1.0b1024.exe: For output dry contact status setting.
• NH-EventLog v1.0b1115.exe: For downloading the UPS event log.
