Yaskawa i80M Maintenance Manual - Manual (Page 147)

( 8 )
( 9 )
Check That the Composite
Power Supply Unit Outputs
a r e n o t S h o r t - C i r c u i t e d .
C h e c k f o r s h o r t - c i r c u i t s
between:
. and OV
. and OV
. and OV
●
and OV
Check the Output Voltage
A f t e r I n i t i a l l y A p p l y i n g P o w e r .
I
Depress the POWER ON
pushbutton for first power ‘
application.
Check that the air flow
from the cooling air ex-
haust port is normal.
●
Verify the output voltage
of the composite power
supply unit.
Rated Output Output Voltage Range
+5 4.75 to 5.25 V
+12 v
11.87 to 13.12 V
–12 v
–11.87 to –13.12 V
+24 V 20.4 to 27.6 V
J
( 1 0 ) C h e c k t h e 1 / 0 S i g n a l s
Between the NC and the
Machine Tool.
Check that 1/0 signals
according to the list of 1/0
signals.
Check signals.
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