III-10
PROTECTIVE DEVICES
T
he machine is fitted with the following protective devices in addition to
the EMERGENCY STOP buttons.
Wheel cover open limit switches
When either the drive or driven wheel cover is opened during cutting, its
open limit switch operates to display an error and stop the saw blade.
When the BLADE START button on the control panel is pressed with
either or both of the covers opened, the saw blade does not start either,
resulting in an error condition.
Saw blade slip detector (Motion detector)
When the saw blade slips on the drive wheel during cutting, an error
occurs, and the machine automatically stops.
This error condition occurs when the cutting rate is too high or when the
saw blade is worn or chipped. Thoroughly check for these causes and
remove them before restarting the machine.
NOTE
O When an error occurs, its number and message are shown on the HIST. ERR
display. Remove the cause of the error by referring to “Error list” in Part IV,
and restart the machine.
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