Fanuc Power Mate i-D/H Maintenance Manual

2. HARDWARE
B63175EN/03
166
WARNING
When opening the cabinet and replacing a fan unit, be
careful not to touch the highvoltage circuits (marked and
fitted with an insulating cover).
Touching the uncovered highvoltage circuits presents an
extremely dangerous electric shock hazard.
The Power Mate i is equipped with two cooling fans. If even one of the
two fans stops, a FAN warning message appears on the display and setting
unit such as the CRT/MDI. In addition, the fan alarm signal FANAL1
<F248#5> or FANAL2 <F248#6> that corresponds to the stopped fan is
output to the PMC. When the Power Mate i is used continuously after the
alarm is generated, the life of the Power Mate i may be shorten. Replace
the fans as soon as possible. Replace the two fans at a time.
When a fan stops, and if there is a possible danger that the Power Mate
i will crash because of overheat, system alarm 978 (fan overheat alarm)
is generated, causing the Power Mate i to stop operating. In this case, F.
blinks on the 7segment LED. If a fan stops when system alarm 978 is
issued, the Power Mate i does not operate unless the fans are replaced.
(1)Push up the latch from the upper section of the unit to dismount it.
Latched state Unlatched state
Push up the latch.
CAUTION
Do not lift up the entire latch. Just unlatch. If you push up
the latch forcibly, it may be broken.
2.5
METHODS FOR
DISMOUNTING AND
MOUNTING FAN
UNITS AND FANS
2.5.1
Cooling Fans
2.5.2
Method for
Dismounting the Fan
Unit

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