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© Panasonic Electric Works SUNX Co., Ltd. 2011 MJE-SFBHC No.0024-49V
Functional Descriptions
3-2-2 Floating Blanking Function
This function is set in each
SF4B
/
SF4B<V2>
series.
If the number of the blocked beam channels is less than the set number of the beam channels, the
safety output 1 / 2 of
SF-C14EX
are not turned “OFF.”
This function is useful when an obstacle moves within the sensing area of
SF4B
/
SF4B<V2>
series.
The factory setting of this function is “ineffective.”
The following items can be set.
Set number of beam channels
$&{=&&"Y++Q
Ineffective setting of both end beam channel
" "=&&$
be selected.
_ SET (Effective) : The floating blanking function becomes ineffective for the both end beam
channels. If either end of the beam channel is blocked, the safety output 1 /
2 of
SF-C14EX
are turned “OFF” regardless of the set number of the beam
channels.
_ G{@"Y~ =& & $ " $ -
cluding both ends beam channels.
Non-serial beam channel setting
_ SET (Effective) : Even if the beam channels are blocked discontinuously in the set beam
channels, the safety output 1 / 2 of
SF-C14EX
are turned “ON.”
(Discontinuous mode)
_ CLR (Ineffective) : When the beam channels are blocked discontinuously even in the set beam
channels, the safety output 1 / 2 of
SF-C14EX
are turned “OFF.”
(Continuous mode)
[For use in Europe (EU) (as EN 999)] (Also applicable to ISO 13855)
(For intrusion direction perpendicular to the sensing area)
<In case that the minimum sensing object is ø40mm or less>
Equation
S = K × T + C
S : Safety distance (mm)
Minimum required distance between the sensing area surface and the dangerous parts of
the machine.
K : Intrusion velocity of operator’s body or object (mm/sec.)
Taken as 2,000 (mm/sec.) for calculation
T : Response time of total equipment (sec.)
T
=
T
m
+ T
SFC14EX
T
m
: Maximum halting time of machine (sec.)
T
SFC14EX
: Response time of
SF-C14EX
(sec.)
C : Additional distance calculated from the size of the minimum sensing object of the
SF4B
/
SF4B<V2>
series (mm)
However, the value of C cannot be under 0.
C = 8 × (d - 14)
d: Diameter of the minimum sensing object (mm)
&=&&+?$$$&:-
comes larger, and the safety distance is longer as well. For the calculation of the safety
distance, refer to the instruction manual enclosed with
SF4B
/
SF4B<V2>
series.
Before designing the system, refer to the relevant laws and standards of the region
where
SF4B
/
SF4B<V2>
series and
SF-C14EX
are to be used and then install
SF4B
/
SF4B<V2>
series and
SF-C14EX
.
The minimum sensing object differs depending on the set number of the beam channels.