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F3SJ-E/B
User’s Manual
Chapter5 Maintenance Checklists
Checklists
E
The test rod is detected when it is moved around in the detection zone as shown in the diagram below.
In other words, when a test rod is inserted into the detection zone, the stable-state indicators (STB)
turn off and the ON/OFF-state indicators turn red.
Confirm that hazardous parts should stop while the machine is operating, as shown below.
When muting function is used, installation condition of muting sensor must not be changed.
When muting function is used, muting state can be checked from where a worker operates or adjust
the machine.
Neither connector nor bracket must be loose.
Checking that hazardous parts stop while the machine operates
The hazardous parts are movable when nothing is in the detection zone.
The hazardous parts stop immediately when a test rod is inserted into the detection zone at three
positions: "directly in front of the emitter", "directly in front of the receiver", and "between the emitter
and receiver". (Use the appropriate test rod.)
The hazardous parts remain stopped as long as the test rod is in the detection zone.
The hazardous parts stop when the power of the F3SJ-E/B is turned OFF while nothing is in the
detection zone.
Items to inspect every six months or when machine settings are changed
In addition to inspection item at operation start, following items must also be verified.
The outputs of the F3SJ-E/B 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 disturbance light.
When F3SJ-B is connected again, a secondary sensor farthest from its power supply has either of the
followings:
•Cap
•Key cap for muting
Power supply's 0 V must be grounded.
Wiring must not be bent, cracked, nor damaged.
Start
Stop
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