OnLine Power Power Wave 4 User Manual
Page 95
6005-145 Rev. A
9-10
Abnormal
Description & Checkpoint
Solution
(4) The voltage
difference
between
NEUTRAL
and GROUND
has become
abnormally
high.
There is external wiring error of R.S.T
phase and N. G., instead of ELI unit
itself,.
Correct the external wiring
system.
(5) The
inverter cannot
start up.
Other than INVERTER SS LED in left
side of the front panel, other LEDs still
illuminate.
Do trouble shooting
according to the LED
instruction.
Switch on the inverter before DC bus has
been established completely. Normally, it
takes around 30 seconds to establish the
DC BUS once the reserve and rectifier
breakers are closed.
Refer to the switch on
procedure. Close the
reserve and rectifier
breakers and wait around
30 seconds or directly use
batteries to establish the DC
bus.
Bypass breaker has been closed
(switched on).
Open the bypass breaker.
The output is overloaded. The LCD will
display warning message ‘ XXX%
OVERLOAD’ in the STATUS/WARN
menu (MAIN menu → SELECT menu
→ STATUS/WARN menu). XXX%
OVERLOAD LED on left side of the
front panel and OVERLOAD LED on
right side will also light.
Decrease the load to below
the ELI’s rated power.
In P&P modules1, the temperature sensor
sockets on 3G PCB and hest sink are not
connected properly. WARNINGLED of
FUSE/TEMP still illuminate but LED in
3G PCB doesn’t, indicating DC BUS
may be over 240VDC.
Take out the P&P modules
and connect them properly.