![Mitsubishi Electric MELCEC Q Series Скачать руководство пользователя страница 194](http://html.mh-extra.com/html/mitsubishi-electric/melcec-q-series/melcec-q-series_user-manual_239056194.webp)
11 -
27
TROUBLESHOOTING
11.
Example
6
The load which
was turned off
is turned on for
a moment at
power-off.
(Transistor
output)
The load [2] which was turned off may be turned on due to
back electromotive force at the time of power-off [1] if an
inductive load is used.
To prevent the generation of the back
electromotive force, connect diode in
parallel with load where the back
electromotive force has been generated.
Source output
[3]
Sink output
[3]
Table 11.3 Faults with the output circuit and the corrective actions (continued)
Situation
Cause
Countermeasure
[1]
Shut off
[2]
[3]
TB1 ON
TB2 OFF
COM+
CTL-
TB1 ON
TB2 OFF
COM-
CTL+
ON
OFF
ON
OFF
Output module,
combined module
Source output
Load
Load
Back electromotive
force
Load
Load
Back electromotive
force
[1]
Shut off
Output module,
combined module
Sink output
[2]
[3]
Load
Back electromotive
force
Back electromotive
force
Load
Содержание MELCEC Q Series
Страница 1: ...QCPU A A Mode User s Manual Q02CPU A Q02HCPU A Q06HCPU A ...
Страница 2: ......
Страница 249: ...App 55 APPENDICES Appendix5 2 A1S61PN A1S62PN and A1S63P power supply module Unit mm ...
Страница 261: ......