107062-12 EN FR26 GLO 501 Printed in France
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Maintenance and
Troubleshooting
Overview
This chapter contains operational test procedures, troubleshooting, cleaning, maintenance, and repair
instructions.
IMPROPER MAINTENANCE
Strictly adhere to all maintenance and troubleshooting instructions.
Failure to comply with these instructions could result in death or serious injury.
Operational Test
To ensure operational readiness, perform the operational test at least once a day and every time the light
curtain is repaired or powered up. The operational test consists of passing a test rod (included with unit)
through the sensing field to ensure the light curtain will detect it (see figure 4-1). The included test rod will
have a diameter equal to the resolution of the light curtain. The resolutions of the FF-SB Series light curtains
are as follows:
Light Curtain
Resolution
FB-SB12
22 mm (0.87 in)
FB-SB14 and FF-SB15
35 mm (1.38 in)
Figure 4-1 Operational Test with the Test Rod