MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
8540780 • 10/07/2020 • Rev.38 181
PRE-RESET (M1S only) (max number = 32 with other RESTART operators)
The PRE-RESET operator can be used when
there is no possibility of having a single reset
button in a position from which a complete
visibility of the hazardous area is available.
In this case it is necessary to use a PRE-RESET
button inside a zone of operation with a
complete visibility and a RESET button outside
the zone of operation to activate the Q output.
For both Pre-reset and Reset inputs the
transition 0->1->0 is considered a valid
signal. It is mandatory that the pulse 0->1->0
has a maximum duration of 5s.
Parameters
Time: The external reset is operative if pressed within a preset time configurable by the
user in the range 6÷120s
Blocking Mandatory: If selected, the minimum number of interruptions (of the light curtain
or similar) is 1 before the RESET signal can be activated.
If you specify a BLOCKING NUMBER other than 1, this number corresponds to the maximum
permissible number of interruptions.
Blocking number: Blocking number has the range from 1 to 7.
Reset Request: Enabling this item will make available an output from this operator. This
signal is 1 from the PreReset signal transition to the end of the allowable time or to the
next Reset signal transition.
Enable Clear: If selected, enables an input to reset the memorization.
The behavior of the PRE-RESET operator is shown in the following timings:
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