Panasonic SF4B-F31G(V2) Instruction Manual page 19

[In Chinese standard (GB 4584)]
In case slide of press machine can be stopped where you would like to, safety distance S
can be calculate by calculating formula 1.
● Equation 1
S : Safety distance (mm)
Minimum required distance between the sensing area surface and the danger-
ous parts of the machine.
K : Intrusion velocity of operator's body or object (mm/sec.)
In case the intrusion direction is horizontal to the sensing area, caluculate at 1,600
(mm/sec.). In case the intrusion direction is perpendicular to the sensing area,
caluculate at 2,000 (mm/sec.) when the safety distance S ≤ 500mm and calcu-
late at 1,600 (mm/sec.) when safety distance S > 500mm.
T : Response time of total equipment (sec.)
T = T
C : Distance from entering hand to the sensing area to this product sensing it. (mm)
Calculate based on table below in case not using interlock function (start-restart
interlock) of this device or safety controller in press machine.
Minimum sensing object
In case using interlock function (start-restart interlock) of this device or safety con-
troller etc. in press machine, C equals 0.
In case the slide of press machine can not be stopped in your desire point, the safety
distance S can be calculated from formula 2.
● Equation 1
S : Safety distance (mm)
Minimum required distance between the sensing area surface and the danger-
ous parts of the machine.
K : Intrusion velocity of operator's body or object (mm/sec.)
In case the intrusion direction is horizontal to the sensing area, caluculate at 1,600
(mm/sec.). In case the intrusion direction is perpendicular to the sensing area,
caluculate at 2,000 (mm/sec.) when the safety distance S ≤ 500mm and calcu-
late at 1,600 (mm/sec.) when safety distance S > 500mm.
T : Time from entering hand to this device to slide reaching bottom dead point. (s)
S
T
S
N : Number of chases of clutch
T
n
C : Distance from entering hand to the sensing area to this product sensing it. (mm)
Calculate based on table below in case not using interlock function (start-restart
interlock) of this device or safety controller in press machine.
Minimum sensing object
In case using interlock function (start-restart interlock) of this device or safety con-
troller etc. in press machine, C equals 0.
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
S = K × T + C
+ T
m SF4B
T : Maximum halting time of machine (sec.)
m
T : Response time of this device (sec.)
SF4B
≤ 14mm
> 14 to 20mm
> 20 to 30mm
> 30 to 40mm
> 40mm
S = K × T + C
= [(1 / 2 ) + (1 / N)] × T
: Time of going into a 360-degree roll (s)
≤ 14mm
> 14 to 20mm
> 20 to 30mm
> 30 to 40mm
> 40mm
Additional distance C
0mm
80mm
130mm
240mm
850mm
n
Additional distance C
0mm
80mm
130mm
240mm
850mm
Stroke starting by this device or safety
controller etc.
Possible
Not possible
Stroke starting by this device or safety
controller etc.
Possible
Not possible
19