FUNCTIONS
58
SH4 STANDARD MUTING
Override at Startup
To activate override RESTART button must be pressed (signal LOW) between 5 and 9 sec-
onds after startup and kept pressed for more than 5 seconds for override to start.
At least one beam must be intercepted for override request to be accepted.
Figure 46: Override at startup timings
Override ends on any of the following conditions (OR):
• TEST button press/release
• 2s after all beams are free
• After 10min timeout
NOTE: External lamp flashes when Override is active and user interface
visualizes Override Active signals (see “Override Active” on page 63).
NOTE: When Automatic Restart is selected OSSDs remains activated after
Override ends.
NOTE: When Manual Restart is selected restart contact must be open and
closed again to reactivate OSSDs.
OPTICAL PATH
OVERRIDE STATUS
OVERRIDE CONTACT
POWER STATUS
FREE
INTERCEPTED
ON
OFF
CLOSED
OPEN
ON
OFF
2s
> 5s
9s > t > 5s
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