4.0 Manual Operation
Light Barrier
The lightbarrier (17) forms a curtain of invisible beams in front of the knife.
Any obstacle in the beams will stop clamping and cutting.
In that case the clamp can still be lowered with the pedal (indication of
cutting line).
Interference into the light curtain causes:
• clamping bar and knive stopped instantaneously and move back to initial
position
• a beep sound
• the monitor to display the message: CUT INTERRUPTED
To continue the cutting process:
Release cut buttons; trigger the cut again
The light barrier used is an infrared light barrier with twenty channels and a self-
inspection system. This monitoring is indicated optically in the left-hand light
barrier (receiver side) by LEDs as part of a display unit.
The machine control system generates a test signal whenever ..
• a cut is released
• the lower dead centre of the knife is reached
• cutting is interrupted
1717
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