. . . . .
OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
© OSTI 1209 PN99584-0050 Rev. E
Original Instructions
91
A
PPENDIX
B —T
EST
P
ROCEDURE
B.1 T
EST
P
ROCEDURE
L
OG
The following test procedure must be performed by qualified personnel during initial 4700 system
installation, according to the employer’s regular inspection program and after any maintenance,
adjustment or modification to the 4700 system or the guarded machine. Testing ensures that the light
curtain, safety system, and machine control system work together to properly stop the machine. Failure
to test properly could result in serious injury to personnel. To test the 4700 system, use the correct size
test object.
Machine Identification:_______________________________Date:_______________
Item
Condition
Comments
1. Disable the guarded machine. Apply power to the 4700 system.
?
Pass
?
Fail
2. Visually inspect the machine to ensure that access to the danger point is
only through the 4700 detection zone. If not, additional guarding, including
mechanical barriers may be required. Verify that all additional guarding
devices and barriers are installed and operating properly.
?
Pass
?
Fail
3. Verify that the mounting distance of the 4700 system is equal to or greater
than the calculated minimum safety distance from the danger point. See
for further information. Ensure that the
operator is not able to stand between the 4700 detection zone and the danger
point.
?
Pass
?
Fail
4. Check for signs of external damage to the 4700 system, the machine and
the electrical cables and wiring. If damage is found, lock the machine off and
report to the supervisor.
?
Pass
?
Fail
5. Interrupt the 4700 detection zone with the proper size test object. Move the
test object inside the perimeter (along the top, sides and bottom) of the
detection zone and up and down through the center. At least one Individual
Beam Indicator must be lit while the test object is anywhere in the detection
zone. If in automatic start mode, verify that the red machine stop light is lit. If in
start/restart interlock mode, verify that the red machine stop and yellow
interlock lights are on. Press and release start button before proceeding to
step 6.
?
Pass
?
Fail
6. Start the machine. While the machine is in motion, interrupt the detection
zone with the test object. The machine should stop immediately. Never insert
the test object into the dangerous parts of the machine. With the machine at
rest, interrupt the detection zone with the test object. Verify that the machine
will not start with the test object in the detection zone.
?
Pass
?
Fail
7. Verify that the braking system is working properly. If the machine does not
stop fast enough, adjust the braking system or increase the distance from the
detection zone to the danger point.
?
Pass
?
Fail
8. If the safety devices or the machine fails any of these tests, do not run the
machine. Immediately tag or lockout the machine to prevent its use and notify
the supervisor.
?
Pass
?
Fail
Technician
Signature:____________________________________________________________________