9
OMRON Scientific Technologies Inc.
© OMRON STI 0613 PN99804-0060 Rev. B
30
9.3.7
R
EQUIREMENTS
FOR
P
ERIMETE R
G
UARDING
In perimeter guarding applications the MS4800 system detection zone is placed around the outside
perimeter of a guarded machine or robot. This placement leaves space for personnel to stand between
the detection zone and the hazardous machine.
In this case, the guarded machine must only be restarted using a switch located outside and with a full
view of, the area of hazardous motion. Operation of the MS4800 system in theStart/Restart Interlock
operating mode is suitable for perimeter guarding.
9.3.8
M
ARKING
M
INIMUM
O
BJECT
R
ESOLUTION
Serial number labels on the transmitter and receiver indicate 4 possible minimum object resolutions.
During installation, use a permanent marker to obscure the object resolutions not set. This will depend
on whether no floating blanking, 1-beam or 2-beam floating blanking is set. See section 5.3.1 for
information.
9.3.9
P
RES ENCE
S
ENS ING
D
EVICE
I
NITIATION
Using the light curtain to initiate a machine cycle after an object is removed from the sensing area is
called Presence Sensing Device Initiation (PSDI). Use of PSDI places additional requirements on the
guarding and safety controls. It can restrict advanced light curtain features such as Floating Blanking
and Fixed Blanking. Contact Omron STI for further information. Good sources of reference for PSDI
include: ANSI RIA 15.06-1999, OSHA 1910.217(h), and ANSI B11.2-1995 (R2005).
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: [email protected]
