4.2.4 flLARtl179 (Temperature Alarm inside the Panel)
Cause of Trouble
Ambient temperature of
CI)Umodule exceeded
the specified value
(70”Ct3”C) by meas-
uring at top of CPS-
10N as a result of fan
failure.
Failure of power
supply unit(CPS-10N)
(Temperature detector
is built inside the
power supply unit.)
_——
Ambient temperature of
NCpanel is too high.
(Applicable temperature
range is O-C to 40”C.)
Check Method
.
.
.
—
Open NCpanel door and ensure that the
fan runs normally.
Ensure that air comes out of exhaust
port at the cooling duct.
Ensure that air intake port of cooling
duct is not blocked,
“ Turn OFF power supply, open the door
of NCpanel and cool it for about
30min.
If the alarm still lights.
“ Measure the ambient temperature.
“ The temperature may rise if NCpanel
is exposed to direct rays of the sun.
Solution
o Replace the fan if
faulty.
Call our service person-
nel YASRllP.
● If cooling duct is
clogged, remove the
cause of clogging and
restart the operation.
The power supply unit must
be NCplaced.
Contact YASREP.
o Reduce the effects of
temperature rise by
shielding the NCunit,
etc.
–18–
To Next Page
Loading...
