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When the central protection area of sensor keeps on light-shaded state, trigger the down going
signal again, the fast down control output and the slow down control output turn on at the
same time and the bender will finish the working stroke at the set slow down speed.
The folding box mode should be selected when the workpiece only blocks L1 protection areas
before the bender change the speed of the working stroke, such as box-shaped parts.
Fig.2.8 Operational timing chart of folding box mode of SP
Muting mode
Under muting mode, the detection function of the sensor is blocked, the laser safety protection
device does not work. If any beam is blocked in the protective stroke, fast down control
output and slow down control output still keep on ON-state even if there is an object in the
detection area and the upper mold will finish the working stroke at the set slow down speed.
The operating mode can be switched to muting mode only in case of sensors are on the
light-passing state.
When the shape of the part to be machined is complex and the beam in the middle area will be
blocked before the speed change point, this mode is adopted.
Fig.2.9 Operational timing chart of muting mode of SP
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