1139300
Shadow 8 User Manual
2-56
Installation and Checkout
4.
Make sure the operator is not able to stand between the Shadow 8 sensing field and the
machine danger point. Verify that the light curtain can only be reset from a position
outside and within view of the hazardous machine area.
5.
Inspect the electrical connections between the guarded machine’s control system and the
Shadow 8 system. Verify that wires are properly connected to the machine so that a stop
signal from the Shadow 8 system results in an immediate halt of the machine’s cycle (see
Connecting Stop Circuits to the Control, page 2-39).
6.
Record the test results in the machine log.
Test Procedure
The following test procedure must be performed by qualified personnel during initial Shadow
8 system installation, according to the employer’s regular inspection program, and after any
maintenance, adjustment or modification to the Shadow 8 system or the guarded machine.
(See Appendix C for a form you can use to document the results of the test procedure.)
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 Shadow 8 system, use the Wintriss-supplied test object (diameter 1.18 in. or
30 mm) or other opaque cylindrical object of the correct diameter. You should also test
Shadow 8 alignment using the shank of a 1/8-in. (3.2 mm) screwdriver. If one-beam floating
blanking is enabled, use an opaque test bar of 2.05 in. (52 mm).
1.
Disable the guarded machine. Apply power to the Shadow 8 system.
2.
Visually inspect the machine to ensure that access to the hazardous area is only through
the Shadow 8 sensing field. If there are other access points, additional guarding, including
mechanical barriers, may be required. Verify that all additional guarding devices and
barriers are installed and operating properly.
3.
Verify that the mounting distance of the Shadow 8 system is equal to or greater than the
calculated minimum safety distance from the hazardous area (see Calculating the Safety
Distance, page 2-2). Ensure that the operator is not able to stand undetected between the
light curtain and the hazard.
4.
Check for signs of external damage to the light curtain, the machine, and the electrical
cables and wiring. If damage is found, lock the machine off and report to the supervisor.
FLOATING BLANKING SHOULD BE DISABLED DURING TEST
Floating blanking should be disabled when you perform the test procedure with the 1.18-in.
test bar. Later you will enable floating blanking and repeat the test with a user-supplied
2.05-in. bar.
NOTICE
Содержание Shadow 8
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