KEYENCE SL-CHG Series - Manual (Page 47)

Chapter 4 Checklist
4-5
4
ENGLISH
4-2-2 Regular Inspection
The responsible personnel must perform a regular inspection at least once every six months.
For the regular inspection, add the following checklist to the checklist given in 4-2-1
“Inspection Prior to
Daily Operation” ( ➮ page 4-3). Note that the checklist below covers the minimum test items required in
using the SL-CHG Series. It is strongly recommended to add the necessary checking items to this
checklist based on the judgment of the responsible personnel since additional criteria may be neces-
sary depending on the machine to which the SL-CHG is installed and the standards and regulations of
the country or region in which it is used.
The result of this inspection must be kept on record along with the machine log.
1. Additional Inspection Items
❏
The distance between the hazardous zone or hazards and the SL-CHG is greater than the mini-
mum safety distance calculated.
❏
The stop time of the machine used to determine the minimum safety distance has not increased.
❏
There are no loose screws in the mounting bracket.
❏
There is no light interference due to external light or reflections from glossy surfaces.
❏
The output cable of the SL-CHG is fastened tightly with no loose screw.
❏
The output from the SL-CHG is connected correctly to the machine.
❏
The FSD relay must be operating normally if the Intelligent Safety Relay Unit (SL-R11G) is being
used.
❏
There should be no damage that may impair the performance of the protective structure of the SL-
CHG.
❏
The light receiving surfaces must be free of stains. There should be no scratches on the outer
covers.
❏
Beam axes must be aligned. If the alignment is off, adjust beam axes according to the procedure
described in
3-9 “Beam Axis Adjustment” ( ➮ page 3-8) as necessary.
❏
All inspections listed in section 4 “ Post-Installation Itemized Checklist” ( ➮ page 4-1) have been
covered.
2. Test Results Confirmation
❏
It the SL-CHG or the machine to which the SL-CHG has been installed fails any part of the above
test, operation should be ceased until satisfactory test results are obtained. A record of the test
results must be maintained.
WARNING
If the SL-CHG does not function as described in the test procedure, do not attempt
to operate the machine to which the SL-CHG has been installed. Such an operation
may lead to serious harm, including a serious injury or death of the machine
operator.