KEYENCE SL-V Series - Manual (Page 162)

A-2 Checklist
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SL-V-M-NOA-E
(4) Pre-check test while the machine is operating.
The purpose of this pre-check test is to make sure that the machine (hazards) stops its operation. This
test must be done after you completely make sure that there is nobody in the hazardous zone.

The machine stops if the test piece is present in the detection zone. It is recommended to try three
locations of test piece: near the transmitter, near the receiver, and in the central area of the detection
zone.

The machine (hazard) still stops its operation as long as the test piece is present in the specified pro-
tection zone. This test should be done for the whole detection zone.

The machine (hazard) stops its operation when the power for the SL-V is disconnected.

Minimum safety distance is ensured, which has been calculated according to the laws, regulations,
and standards of the country and region in which the SL-V is installed.

Inspection prior to daily operation (Daily inspection)
You should check the SL-V operation and the machine operation according to the following checklist
prior to daily operation.
Note that the following inspection items comprise only a bare minimum inspection. KEYENCE Corpora-
tion strongly recommends including the necessary checking items into this checklist based on the judg-
ment of the responsible personnel since additional criteria may be necessary depending on both the
machine to which the SL-V is installed and the laws, rules, regulations and standards in the country or
region in which the SL-V is used/installed.
The result of this inspection must be kept on record along with the machine log.
(1) Pre-check for installation condition

The SL-V is installed so that the machine operator cannot go into or approach the hazardous area
without passing through the detection zone.

The SL-V has been installed at a distance greater than or equal to the minimum safety distance
required.

When the reduced resolution function is applied, the safety distance is accurately calculated based
on the detection capability, and the SL-V is installed at a distance greater than or equal to the mini-
mum safety distance away from the hazardous zone or hazard.

When the fixed blanking function is applied, a hazardous clearance that is not protected by the SL-V
may be generated between the obstacle and the SL-V. When such a hazardous clearance is gener-
ated, an additional protective device such as a safeguard is installed.

The SL-V is installed at a location free from light interference, for example fluorescent lamps.

The cable sheaths are not damaged. The protection against the disconnection or short-circuit of cable,
which might be caused by crushing or being caught in a machine, is taken into account.
Additionally, you should perform the following inspections as described in "Inspection before operation".
(3) Pre-check test while the machine is stopped
(4) Pre-check test while the machine is operating

There is no change of installation that would influence the result of your original risk assessment.

Regular (periodical) inspection
The responsible personnel must perform a regular inspection.
It is recommended to perform a regular inspection at least once every six months.
Note that the following inspection items comprise only a bare minimum inspection. KEYENCE Corpora-
tion strongly recommends including the necessary checking items into this checklist based on the judg-
ment of the responsible personnel since additional criteria may be necessary depending on both the
machine to which the SL-V is installed and the laws, rules, regulations and standards in the country or
region in which the SL-V is used/installed.
The result of this inspection must be kept on record along with the machine log.