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Application tips
5.3 Power switches ("SmartFETs")
5.3
Power switches ("SmartFETs")
The power switches used for outputs have built-in protection from excessive load currents
and short circuits at the output. The hardware of the module monitors the overcurrent/over
temperature signal.
Note
If the power switch is switched OFF due to an over temperature or overcurrent condition but
the "ON" command persists, the output will be switched on again once the over temperature
or overcurrent condition is eliminated.
The green channel LED illuminates when the power switch of the channel is switched on. A
diode at each output protects the power switch from a reverse overvoltage failure when an
inductive load is switched off.
You will find further information on handling inductive loads in our FAQs.
58
TM15 / TM17 High Feature Operating Manual
Commissioning Manual, 05/2009
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