13
Table 4-1
Examination precision
Unit: mm
Additional distance C
Unit: mm
Carried on the traveling schedule
start by the photoelectric protector
<=14
0
Be allowed
14 to 20
80
20 to 30
130
30 to 40
240
Be not allowed
>40
850
When the press is used the self-lock (start - restart locking) function by the photoelectric protector,
may take as C=0.
A. The safe distance is one of essential conditions that the photoelectric protector ensures to
realize protection function, must calculate the safety distance correctly.
B. Installation must guarantee that minimum distance between light curtain and dangerous
area is bigger than the safety distance.
A. Adopt the emergency stop time of the label on the press if the production date is less than
one year.
B. It is necessary to mensurate the emergency stop time of the machine, compare with the time
of the label on the press and the production date, if the production date is more than one
year, and choose the bigger one.
