PLMNL0199 REV. J Effective Date: 08/05/21
5
FiberCUT
®
ST Operation Manual
2.7 Electrical Grounding and Noise
The capacitive sensing circuitry contained
in the FiberCUT
®
cutting head measures
minute changes in electrical capacitance
between the tip and earth-ground to
determine tip-to-part standoff distance. In
order for this circuit to function properly,
connect the part and the cutting head to a
good earth ground.
Ideally, establish the ground from a
ground rod, approximately 2 meters in
length driven into the ground located
near the base of the robot.
Run a large gauge (1.6mm diameter or
larger) ground wire from the ground rod
to the part.
Run a separate wire from the ground
rod to the mount of the FiberCUT
®
at
Figure 8
Electrical noise can create sensing issues.
Large electric motors, arc welders and
other devices may be a source of
significant electrical noise. In order to
eliminate this noise it may be necessary to
connect a ground wire to the chassis of any
such device near the process.
2.8 Control Box Mounting
The important things to consider when
mounting the control box are:
Clearance to attach connectors
Clearance to open the control box door
Standard cable length is 15 meters
Easy access for maintenance.
Mounting such that debris from the
process is not directed at the controller
box.
Mounting in an area where there are no
water leaks or oils from hydraulic
presses.
mounting pattern.
Mounting screw heads are located
inside the control box.
Figure 9
