SG4 EXTENDED INSTRUCTION MANUAL
34
7
Manual Restart:
after the ESPE has detected an opaque object in the controlled area, the light curtain
begins its normal functioning only by pressing the Restart button (normal open push button) and after
the object has been removed from the controlled area.
The RESTART push-button must be kept pressed for at least 500 msec. When the
RESTART push-button is released, the OSSD outputs switch to normal operation.
A timeout greater than 5s on the high RESTART brings the ESPE in failure lockout.
Fig. 32 – Restart timings (manual)
In Manual Restart the RESET/RESTART/ALIGN input (pin 3 of M12-12 poles – RX side) has to be
connected to a 24VDC normally-open contact.
Fig. 33 – Restart connection (manual)
WARNING: Carefully assess risk conditions and reset modes. In applications
protecting access to dangerous areas, the automatic reset mode is potentially
unsafe if it allows the operator to pass completely beyond the sensitive area. In
this case, the manual reset or, for example, the manual reset of the SE-SR2
relay (see chapter 15) is necessary.
Here below the way to select the restart mode is explained, both through push-button and
the graphic user interface.
Summary of Contents for SG4-14-030-OO-P
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