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Figure 3.3 : One-way muting on a conveyor (using four sensors)
A
B
C
Mechanical guarding
D
with :
A : distance between SM1 and SM2, t
B : distance between SM2 and ESPE, t
C : distance bewteen ESPE and EM2
D = B + C + L, t
= D/V
D
where V is the object velocity, L is the object length
and t
, t
, & t
are the object transit times.
A
B
D
FACTORY SETTINGS
•
The muting module is set in the conveyor mode on delivery.
•
The maximum timing tmax allowed between SM sensors is set to 1 s on delivery.
It can be modified to the following values : 2 s, 4 s, or 8 s.
•
The setting of the timing tmax also sets the muting maximum duration ∆max. In the
conveyor mode (delivery settings), the muting duration is set to 2 mn (on delivery). It can be
modified to the following values : 4, 8 or 60 mn.
•
Refer to chapter 2.4.2 SM inputs, to select tmax and ∆max.
36
< ∆ max.
t
D
SM1
!
8 ms < t
< tmax
A
SM2
t
< 6 s max.
B
OSSDs
ESPE
EM1
EM2
Muting
lamp
OSDs
= A/V
muting
A
MUTING
= B/V
module
B
∆max & tmax :
see chapter 2.4.2 SM inputs
107004-15 EN FR26 ROW 0899 Printed in France
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0
1
0
1
0
1
0
1
0
1
0
1
0
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