
Chapter 5 Trouble shooting and maintenance
5-7
5.3 Troubleshooting Flowcharts 7300EV Series
Is failure fully
understood?
Any symptoms
of burnout and
damage?
Is main loop
I.G.B.T normal
Is the main circuit
DM intact?
Replace I.G.B.T
Replace DM
Check burnt and damaged
parts
Any abnormalities
in appearances?
Are displays and
indicators of the
operating unit
What’s the
message?
Any abnormal
display?
Check 3 times abnormal values
of F-
54
with
▼
key.
Is the DC input
voltage controlling
the power correct?
Is +5V control
voltage correct.
Is the error
eliminated after
replacing control
board?
Replace the driver board
Check terminals and
wiring
Replace the burst absorber
Perform detailed checks
The inverter faults
* to next page
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Replace control board and
digital operating unit
NO
YES
7300EV INV faults
Symptoms other than burn out,
damage, or fuse meltdown in
the inverter?
Abnormal
signal
?
Check according to displayed
abnormal messages
Visually check controller and
driver boards
Apply the power
Any abnormal
display?
3 abnormal values in
F-
54
Replace abnormal board
Is LED lit?
NO
Содержание 7300EV
Страница 14: ...Chapter 3 Environment description and installation 3 4 z EV 1P2 1P5 101 2P2 2P5 201 N4S install TM1 TM2 ...
Страница 15: ...Chapter 3 Environment description and installation 3 5 z EV 1P2 1P5 101 2P2 2P5 201 N4 install TM1 TM2 ...
Страница 86: ...Chapter 6 Peripherals 6 4 z JNFS21015 22 07 FOR EV 202 203 H1 z JNFS21016 15 07 FOR EV 202 203 H3 ...
Страница 87: ...Chapter 6 Peripherals 6 5 z JNFS20858 7 07 FOR EV 401 403 H3 ...