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GuardShield™ Type 2 Safety Light Curtain Installation Instructions
Assure that all power to the machine, and
ATTENTION
safety system is disconnected during
electrical installation.
Prior to powering up the GuardShield Type 2
IMPORTANT
system, the responsible person should
review the following Checklist.
Checklist
Before the initiation of the GuardShield Type 2 the responsible person
should work through the following checklist.
Cable check prior to initiation:
1.
The power supply is solely connected to the GuardShield Type 2.
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 Type 2.
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.
7.
The connected switching elements (load) are not connected to
24V DC.
8.
No connection to a conventional power supply.
9.
If two or more GuardShield Type 2 are to be used, make sure that
each system is properly installed, in order to avoid optical
interference.
Switch the GuardShield Type 2 on and check its function by observing
the following:
10.
Two seconds after switching on, the system starts to work
properly, if the protective field is free of obstructions.
14
Safety Instructions—Maintenance
ATTENTION
Note:
1. For safety reasons all inspection results should be
recorded.
2. Only persons, who clearly understand the functioning of the
GuardShield Type 2 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
1.
Approach to hazardous machine parts must only be possible
through passage through the protective field of GuardShield Type
2.
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.
Operate the machine and check, if the hazardous movement will stop
under the following circumstances.
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 Type 2 is turned off.
9.
If the blanking function is activated, check all sections of the
protective field with the appropriate test piece.
IMPORTANT
Original instructions
Never operate the GuardShield Type 2 before
carrying out the following inspection.
Improper inspection can lead to serious or
even deadly injury.
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.
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