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REPLACING
SAFETY AND
PROXIMITY
SWITCHES
SC-5 SURE CUT Servo Knife Cutter UGE059/1003
6-12 TROUBLESHOOTING
Three safety switches are included in SC-5 Sure Cut cutters: a
keyed safety switch on the knife guard, and a proximity switch
on each cutter bushing. A failure in any of these switches will
prevent the cutter from running.
●
Safety Switch
If you suspect a problem with the keyed safety switch on
the knife guard, check for loose or damaged wires.
Replace the switch if wires appear to be undamaged.
●
Proximity Switches
The proximity switches on the cutter bushings have LEDs
that light when the bushing is sensed. If an LED does not
light when the bushing is in place:
Check for loose or damaged wires.
Remove the cutter bushing and make sure the prox-
imity switch is properly positioned, i.e. 0.010 inch
from the bushing surface.
Remove the proximity switch by loosening the set
screw. Test it by bringing some object close to the
sensor when the power is turned on. If the LED does
not light, replace the proximity switch.
The servo amplifier is equipped with a digital readout that can
be seen through the viewing window on the electrical enclo-
sure. This display shows amplifier status and error messages.
Refer to the supplier's documentation included with this User
Guide.
NOTE: Make sure you look for servo amplifier messages
before you shut off the power.
3
CHECKING THE
SERVO
AMPLIFIER
1
2
CAUTION: Insure that all personnel
involved in the installation, operation
and maintenance of this particular
cutting machine,
as well as those persons
who will act as supervisory personnel, have
read and fully understand these instructions
and those contained in any and all accompany-
ing suppliers manuals and instruction sheets
before attempting to install, operate or perform
maintenance on this machine.