Operation
Operating Manual PIT m4SEU
1004648-EN-02
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Operation
Switch-on behaviour
INFORMATION
After the PIT m4SEU is switched on (power-on) or after supply voltage is re-
turned (reset), operating mode OM1 or the most recently selected operating
mode is selected automatically, depending on the device configuration. This
also applies if no transponder key is inserted or if a transponder key is de-
tected but is invalid.
The corresponding display signal output is switched on simultaneously and
the status interface SIo0 … SIo3 displays the selected operating mode.
Behaviour in the event of an error at switch-on
NOTICE
In the event of an error, no active operating mode is displayed at the corres-
ponding display element and no semiconductor output has a "1" signal.
Behaviour in the event of an error in operating modes OM1 … OM4
NOTICE
In the event of an error, the device does
not
change operating mode. The
active operating mode (OM1, OM2, OM3 or OM4) is displayed at the relev-
ant display element and the assigned semiconductor output has a "1" sig-
nal.
Behaviour in the event of an error in special operating mode OM5 (Service)
NOTICE
In the event of an error, the device does
not
change operating mode. Faulty
operation is indicated by the fact that all the display elements are either all
lit or all out. The assigned semiconductor output has a "1" signal.
