Rockwell Automation 445L GuardShield Safe 4 and Safe 4 PAC Safety Light Curtains User Manual - Manual (Page 19)

R
GuardShield™ Safe 4 Safety Light Curtain User Manual
17
Original instructions
Checklist
Before the initiation of the GuardShield Safe 4 the responsible
person should work through the following checklist.
Cable check prior to initiation:
Switch the GuardShield Safe 4 on and check its function by
observing the following:
Two seconds after switching on, the system starts to work
properly if the protection field is free of obstructions
Safety Instructions—Maintenance
Note:
1. For safety reasons all inspection results should be recorded.
2. Only persons, who clearly understand the functioning of the
GuardShield Safe 4 and of the machine, may carry out an
inspection.
3. If installer, planning engineer and operator are different
people, make sure that the user has sufficient information
available to carry out the inspection.
Daily Inspection
Operate the machine and check, if the hazardous movement will
stop under the following circumstances.
Six-Month Inspection
Check the following items every six months or whenever a
machine setting was changed.
1. The power supply is solely connected to the GuardShield Safe 4.
2.
The power supply is a 24V DC device, that must comply to all applicable standards of the
Machinery Directive 2006/42/EC, and the product standard (IEC 61496).
3. Proper polarity of the power supply at the GuardShield Safe 4.
4.
The transmitter connection cable is properly connected to the transmitter, the receiver connection
cable is properly connected to the receiver.
5. The double insulation between the light curtain output and an external potential is ensured.
6. The OSSD outputs are not connected to +24V DC or 0V.
7. The connected switching elements (load) are not connected to 24V DC.
8.
For a self testing safety light curtain system , the test output and input of the transmitter are short
circuited.
9. No connection to a conventional power supply.
10.
If two or more GuardShield Safe 4 are to be used, make sure that each system is properly installed,
in order to avoid optical interference.
IMPORTANT
Prior to powering up the GuardShield Safe 4
system, the responsible person should
review the following checklist.
ATTENTION
Never operate the GuardShield Safe 4 before
carrying out the following inspection.
Improper inspection may lead to serious
injury.
1.
Approach to hazardous machine parts must only be possible by passage through the protective
field of GuardShield Safe 4.
2. Operators cannot step through the sensing area while working on dangerous machine parts.
3. The safety distance of the application is bigger than the calculated value.
4. The optic front cover is neither scratched nor dirty.
5. The protective field is interrupted.
6.
Hazardous machine movement stops immediately, if the protective field is interrupted by the test
rod directly in front of the transmitter, directly in front of the receiver and in the middle between
transmitter and receiver.
7. No hazardous machine movement while the test rod is anywhere within the protective field.
8. The power supply of the GuardShield Safe 4 is turned off.
9.
If the blanking function is activated, check all sections of the protective field with the appropriate
test piece.
1. Machine stops or does not obstruct any safety function.
2. The latest machine or connection modifications have no effect on the control system.
3. The outputs of the GuardShield Safe 4 are properly connected to the machine.
4. The total response time of the machine is shorter than the calculated value.
5. Cables and plugs of the GuardShield Safe 4 are in good condition.
6. Mounting brackets, caps and cables are tightly secured.
IMPORTANT
If any of the above conditions do not result in
the hazardous motion of the machine
ceasing, do not allow the protected machine
to be placed in operation.