Power Unit Inspection - Mitsubishi MELDAS TRS50 Manual

POWER UNIT INSPECTION

3)
operation status displays and alarm display lamps
Power
control card)
Name Lamp
P i l o t
PW.
ON
THM
LED2
arm
( r e d )
tus
NFB
LED3
LED4
ALM
(red)
FUSE
(red)
Description of display
Lights when
DC
approx. off w h e n
touch since capacitor is still charged
Do NOT
Lights when +24V is supplied by DUC-1 cable
Lights when temperature of rectifier diode
exceeds prescribed temperature.
Alarm for all axes.
Lights when no-fuse breaker of rectifier
unit is tripped or when it goes
Alarm for all axes.
When multi-tap transformer or RU unit is
installed, the RU unit will be an alarm or
when transformer thermal is operated this
will be an alarm. Alarm for all axes.
Lights when the AClOOV
power unit output
axes.
- 3 6 -
voltage of rectifier unit is
a p p r o x . 40-50V.
O F F .
fuse or the fuse in the
(P) breaks.
Alarm for all
l
l