Service manual

Always On UPS Systems
M0704_NX_Series_Service_Manual V2.17 2012-06-12 73
Table 29.1 LED Operation for the 3G PCB
PCB FUNCTION LOCATION
NORMAL ABNORMAL
SOLUTION
PCB LED
LED
Illumination
Description
LED
Illumination
Description
3G Inverter Driver (RST)
Inverter
Module
LED G1 Yes Inverter working No Inverter failure
Ensure cable connections are secure
and correctly attached.
Replace the board
Figure 29.3
Layout of one phase of the Inverter Module