Siemens SIMATIC FS400 Anleitung Seite 120

Terms used:
Access guarding
AOPD
AOPD response time
AutoReset
Contactor Monitoring
(EDM)
Danger area guarding
Danger point guarding
DoubleScan (d-scan)
EDM
OSSD1
OSSD2
Perimeter guarding
RES
Scan
SingleScan
Start/restart function
(RES)
Table 1.2-2:
120
Requires person detection with entry into the danger area
Active Opto-electronic Protective Device
Time between penetration/entry into the active protective
field of the AOPD and the actual switching off of the
OSSDs.
When an error indication occurs, caused, for example, by
faulty external wiring, the AOPD attempts to start again. If
the error no longer exists, the AOPD returns to the normal
state.
The contactor monitoring monitors the break contacts of
downstream positive-guided contactors and relays
Requires detection in the foot/leg area
Requires finger, hand or arm detection
Multiple scanning: safety outputs turn off after a beam
has been interrupted in two consecutive scans.
DoubleScan affects the response time!
External Device Monitoring (contactor monitoring)
Safety-related switching output
Output Signal Switching Device
Requires person detection with entry into the danger area
Start/REStart interlock
All beams, beginning with the synchronization beam, are
pulsed by the transmitter sequentially.
If a beam is interrupted in the first scan of the light curtain
or light grid, safety outputs turn off
RES prevents automatic start after the supply voltage has
been turned on and after the protective field has been
penetrated/entered.
SIMATIC FS400 3RG7845 Light Curtain and Light Grid terms/
terminology