Safety Design of F3SN-A
3
Complete Safety Design
Output turns OFF via self diagnostics.
Highest Level Safety Design
Prevents Mechanical Accidents
Safety Design Backed by Technology
Pursuing safety with the highest level of
safety design and FMEA
Conforms to Global Safety
Standards for Safety Sensors
Emitter
Receiver
STOP!
Monitor
Control block
Monitor
Control block
Monitor
Output block
Control block
Block diagram of the circuit
Emitter
Receiver
CPU
CPU
Amp.
If a problem occurs,
the F3SN-A/F3SH-A ensures
that the machinery will stop
by outputting the same OFF
signal as when an intrusion
is detected.
We pursued the safety of F3SN-A/F3SH-A to the limit with
the mutual check of two CPUs, safe design by dual circuits
of signal control and output, and FMEA*, which verifies
the safety of the operations.
*FMEA : Failure Mode & Effects Analysis
Type 4 Level Sensor Specified by IEC and EN Standards
Conforms to the now mandatory international standards for
safety sensors: IEC61496-1, IEC61496-2, and EN61496-1. The
F3SN-A and F3SH-A are type 4 Sensors meeting the highest
safety standards of category 4.
Conforms to EU Machinery Directives
Certification for EC type-examination in accordance with the EU
Machinery Directive and conformity to EMC Directives has been
obtained from DEMKO. The F3SN-A/F3SH-A can be used with
confidence in machinery and equipment destined for Europe.
Certification for United States and
Canada from UL in the United States
Can be used with machinery designed for OSHA regulations and ANSI standards.
Certified for UL Listing based on UL508, IEC61496-1, and
IEC61496-2 and UL Listing for Canadian safety standards. Can be
used with machinery that will be used under OSHA regulations
(29 CFR 1910. 212), which are stipulated under the Occupational
Safety and Health Act of 1970. Also fulfills the requirements for
ANSI/RIA R15.06-1999, the United States Safety Requirements
for Industrial Robots and Robot Systems. The F3SN-A/F3SH-A
can be confidently used with machinery and equipment bound
for the United States and Canada.
IEC61496-2
IEC61496-1
Type
4
IEC61496-1
IEC61496-2
Type
4
UL
UL
Damage to receiving elements
Damage to power supply or circuit
Damage of receiving circuit
Faulty CPU
Interference light
Damage of output drive circuit
Damage of output
Open or short-circuited cable
Also supports EDM(External Device
Monitoring) function.
Damage of emitting circuit
Damage to emitting elements
Faulty CPU
Open or short-circuited cable
Output block
Emitting part
Receiving part
F3SN-A/F3SH-A automatically
checks for internal circuit
problems, open or
short-circuited cables, and
abnormal incident light.
