F3SJ-E/F3SJ-B/F3SJ-A
39
For F3SJ to comply with IEC 61496-1 and UL 508, the DC power
supply unit must satisfy all of the following conditions:
• Must be within rated power voltage (24 VDC±20%).
• Must have tolerance against the total rated current of devices if it
is connected to multiple devices.
• Must comply with EMC directives (industrial environment)
• Double or enhanced insulation must be applied between the
primary and secondary circuits
• Automatic recovery of overcurrent protection characteristics
(reversed L sagging)
• Output holding time must be 20 ms or longer
• Must satisfy output characteristic requirements for class 2 circuit or
limited voltage current circuit defined by UL 508
• Must comply with EMC, laws, and regulations of a country or a
region where F3SJ is used. (Ex: In EU, the power supply must
comply to the EMC Low Voltage Directive)
Double or enhanced insulation from hazardous voltage must be
applied to all input and output lines. Failure to do so may result
in electric shock.
Note: Keep the cable length within the rated length. Failure to do
so is dangerous as it may prevent safety functions from
operating normally.
Make sure to perform wiring while the power supply is OFF.
Others
To use the F3SJ in PSDI mode (Reinitiation of cyclic operation by
the protective equipment), you must configure an appropriate
circuit between the F3SJ and the machine. For details about
PSDI, refer to OSHA1910.217, IEC 61496-1, and other relevant
standards and regulations.
Do not try to disassemble, repair, or modify this product. Doing
so may cause the safety functions to stop working properly.
Do not use the F3SJ in environments where flammable or
explosive gases are present. Doing so may result in explosion.
Perform daily and 6-month inspections for the F3SJ. Otherwise,
the system may fail to work properly, resulting in serious injury.
Do not use radio equipment such as cellular phones, walkie-
talkies, or transceivers near the F3SJ.
Note:
For customers using the F3SJ-B
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P25-01TS:
The functions available are external test, lockout reset,
auxiliary output and series connection.
Installation Conditions
Detection Zone and Approach
Install a protective structure so that the hazardous part of a
machine can only be reached by passing through the sensor's
detection zone. Install the sensors so that part of the person is
always present in the detection zone when working in a
machine's hazardous zones.
If a person is able to step into the hazardous zone of a machine
and remain behind the F3SJ's detection zone, configure the
system with an interlock function that prevents the machine
from being restarted. Failure to do so may result in serious
injury.
Install the interlock reset switch in a location that provides a clear
view of the entire hazardous zone and where it cannot be activated
from within the hazardous zone.
The F3SJ cannot protect a person from a projectile exiting the
hazardous zone. Install protective cover(s) or fence(s).
Right positions
Incorrect installation
WARNING
F3SJ-E F3SJ-B F3SJ-A
F3SJ-E F3SJ-B F3SJ-A
F3SJ-E F3SJ-B F3SJ-A
F3SJ-E F3SJ-B F3SJ-A
F3SJ-E F3SJ-B F3SJ-A
WARNING
F3SJ-E F3SJ-B F3SJ-A
The hazardous zone of a machine can be reached only by
passing through the sensor's detection zone.
While working, a person is inside the sensor's detection zone.
It is possible to reach the hazardous zone of a machine
without passing through the sensor's detection zone.
A person is between the sensor's detection zone
and the hazardous zone of a machine.