Service manual

Always On UPS Systems
M0704_NX_Series_Service_Manual V2.17 2012-06-12 41
3T Board Fault A
UPS system initializes ok.
Once inverter attempts to
assume load system beeps,
“Inv Fail Shutdown” LED turns
on, “Fault” LED turns on and
“Load” LED flashes. System
remains in Static Bypass
mode, re-attempting Inverter
start-up continually.