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4.2 To Determine Placement Position
The placement position is one of necessary conditions for photoelectric
protector to achieve protection function. It must be correct.
Placement position is a light curtain position in relation to up and down margins of mould opening
in press, i.e. in the condition which safety distance is ensured to achieve, the position of the lowest
light beam of the protector could not be higher than the down margin of mould opening, the position
of the highest light beam of the protector could not be lower than the up margin of mould opening.
The protection height of light curtain used on press must be insured:
Figure 4-2 Placement position schematic drawing for light curtain
A. The safety distance and placement position shall be readjusted if the mould used in press is
change to a new one.
B. If the press faults, it must be checked and repaired; or even if the protector is installed in
correct position, safety cannot be ensured.
C. When safety distance is over 400mm, necessary assistant means should be taken.
Protection height >slide traveling sc adjustment quantity
