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Section5 Maintenance
Perform daily and 6-month inspection for BLPS. Otherwise, the system may fail to
work
properly, resulting in serious injury.
Do not try to disassemble, repair, or modify this product. Doing so may cause the
safety
functions to stop working properly.
Hot plugging for the connectors of BLPS is forbidden!
To ensure safety, keep a record of the inspection results. When the user is a different person
from those who installed or designed the system, he/she must be properly trained for
maintenance.
5.1 Inspection at startup and when changing operators
□ Part of the operator's body always remains in the detection area of BLPS when working
around the machine's hazardous part.
□ The actual safety distance is equal to or greater than the calculated value.
□ There must be no dirt on nor damage to the optical surface.
□ When there is no object in the detection area, power on the BLPS, it should turn to the
light-passing state within 3s.
□ Block the detecting beams and carry out the check again.
5.2 Inspection for the guarded machine
□ The hazardous parts are movable when nothing is in the detection area.
□ The hazardous parts change the state according to the pre-set program (speed change or stop)
immediately when the test piece is inserted into the detection area.
□ The hazardous parts remain the state according to the pre-set program as long as the test
piece is in the detection area.
□ The hazardous parts stop when the power of the BLPS is turned OFF.
□ The machine itself does not prevent the operation of safety functions such as stopping.
5.3 Items to inspect every 6 months or when machine settings are changed
□ The outputs of BLPS and the machine are properly wired.
□ The total number of times that the control relays/contactors have switched is significantly
lower than their design lives.
□ There is no interference light.
□ 0V of power supply must be grounded.
□ The cables must not be bent, cracked, nor damaged.
□ BLPS is fixed fasten, no loose.
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