A1-User’s Manual
186
9.2.8
ot (Over Temperature)
1)
Diagnostic flow chart
ot
Surrounding
temperature is too high
Yes
The FAN is not working
No
No
Yes
Decrease the carrier
frequency
98.03
by 0.5 min 1.0
ot is occurred?
END
Replace Power PCB
or IGBT modules
Keeps the temperature
below 40
o
C
24V of FAN power is
ok?
Replace the FAN
Replace the SMPS
Yes
No
Yes
No
heatsink is not dirty?
No
Yes
Clean the heatsink
* If carrier frequency is too high,
the switching of IGBT is increased
Содержание iMASTER - A1 Series
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