DOLD Safemaster Pro, Руководство пользователя

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Configurable Safety System SAFEMASTER PRO
148
0265525 / 16.05.19 en / 101A
PRE-RESET (UG 6911.12/080) (Max. 16 with UG 6911.10, 32 with UG 6911.12/080 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 the danger zone (at a point where
there is complete visibility of the zone) and a second
actual Reset button outside the dangerous zone.
For each of the two Prereset and Reset inputs, the
transition 0-1-0 is always considered; in order to be
considered valid, the latter must take place in a time
between 500 ms and 5 s
Parameters
Enable Clear:
If selected enables the saving process to be reset.
Restart Request:
If selected, it enables an output that can be used to signal the possibility of performing the Restart.
The behaviour is represented in the truth table
Time:
The external reset is operative if pressed within a preset time configurable by the user in the range 6÷120 s.
Blocking Mandatory:
If selected, it will be necessary to insert in the box a number corresponding to the number of blockings (or
interruptions). The system will verify that from the transition of the PreReset signal to the transition of the Reset
signal, there is not a number of blockings (transition 1-0 of the In signal) higher than the maximum number set
but still higher than 0.