User guide

Troubleshooting l 6-7
6
Troubleshooting
Cutter Operational Problems (continued)
Symptom
After pressing Start Cutter,
the cutter head rotates and
stops in wrong position.
Master safety relay does
not energize.
Measurement display does
not change value.
Possible Cause
The Blade Home proximity switch
failed or the connection to it is
loose.
Guard circuit is open.
“Emergency Stop” button is pressed.
Input from encoder failed.
Encoder failed.
Solution
Check connections and replace
switch if needed.
Check that the bushings are in place.
Make sure that the blade guard is
closed.
Loose connection to guard circuit.
Tighten connection.
Guard switch is bad, replace switch.
Bussing proximity is bad, replace
switch.
Pull out “Emergency Stop” button.
Check encoder cable for continuity.
Connect any loose wires.
Replace encoder.