4.3 TROUBLESHOOTINGWITHOUTALARMCODES
cated by alarm codes.
For further details of signal meanings express-
The following examples are instructions for
ed by the address~, refer to Section “Re-
locating and correcting the troubles not indi-
tails of Signals” in Connection Manual.
4.3.1 POWERCANNOTBE SUPPLIED.
Trouble
No power SUPP1
unit.
.——
d to NC
Alarm LEDof CPS-ION
lights.
Power ON/OFFSwitch is
not set properly.
SW5
i
I
I0 =
i 3+ ’14 ‘Cn’y cm)
)
u
10 I o ~ 12- POF(invalid/valid)
(Set at factory
Prior tO
shirment)
Check Procedure
Ensure that SOURCELED(green) of DC
power SUPP1Y(CPS-1ON)inside CPUmodule
lights.
CPS-IONLEDDisplay
Norma 1
Trouble
Display
Signal
Naw
Pwer
supply
status
Pn+er on
status
+5
v
Trouble
+12 v
Trouble
-12 v
Trouble
+2.4 v
Trouble
External
trouble
i LED
Display !
,
Color
SOURCE ~ Green
IWER ON Grsen
+5 v,
Rad
*12
v
+24v
Red
EXT Red
Func t ion &
Cause
Lights when AC
pouer is on, out
when owr is
off.
Lights i+hen SOURCE
input above 170
VAC at NC!IXCN.
Lights at +5 V
over- vo 1 tage or
overcurrent.
Lights at +12 V
overvoltage or
–
12 V under-
vol tsge.
Lights at
+24 V
over- vo 1 tage
or
overcurren t.
Lights with
external EXALtl
signal.
Note:
LED lights for external trouble (EXT) when CN13
connector batwen 4 and 7 short-circuits.
SW5
SW5Setting(for 9 ‘CRT)
Use panel (POF)
only
El
lo~3
~
000 G
7~09
10 o= 12
1
Use external
device (EOF)
only
Use both
3
6
9
12
I
I
Solution
Check molded-case circuit
breaker or NCpanel and
also connector CN13of
CPS-1ON.
When trouble in Table on
the left is displayed by
LED, correct the trouble,
then, turn on power again.
If the trouble is not
corrected by this procedure,
trouble mey be in the power
unit. Contact your YASKAWA
representative(YASREP).
Set correctly shorting
plug SW5at left corner on
MB20PCB.
–28–
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