Datalogic SG4 FIELDBUS Series, Инструкция по эксплуатации, Страница: 72 / 136

FUNCTIONS
62 SG4 EXTENDED
OVERRIDE FOR SG4-N
Override function activation
• If the entire detection zone is free for more than 2 s, the override function is
immediately deactivated.
• The maximum timeout for the override function is 600 s.
• The standard requires the use of a device like a hold-to-run device so that it is
impossible to enter the hazardous zone while maintaining the action on the
device.
• When the Override function is on, the lamp output (pin 8) is driven.
• If the external lamp is broken and/or not connected, the override request causes
the AOPD to enter Error mode and the OSSD outputs to switch off. The corre-
sponding error is indicated.
Override at start-up
• Switch off the power supply.
• Restore the power supply and press the RESET button after approx. 5 s but within
9 s and keep it pressed for at least 5 s. The OSSD outputs switch on and remain
activated for a maximum time of 600 s.
• The override function is now activated and the integrated lamp flashes. So does
the external lamp if connected.
Figure 45 - Startup Override activation and timings
CAUTION
To start override, the OSSD outputs must be switched off and at least one
beam must be interrupted.
CAUTION
If the AOPD is in Automatic Reset, the OSSD outputs remain on after the
end of the override.