Urschel COMITROL 1700 - Troubleshooting

MAINTENANCE
Troubleshooting
44
Power disconnect/lock-
out switch is in the “O”
(OFF) position
Guards and covers not
securely closed,
attached or fastened
Overload relay tripped
Amplifier malfunction
Blown fuses
Electrical system mal-
function
Feed rate too high
Loss of one phase of
power
Motor problem
Machine overload or jam
Dull cutting edges in
cutting head
Feed rate too high
Power source too low
Motor problem
Turn power disconnect/lockout switch to the
“I” (ON) position, page 28.
Make sure guards and covers are securely
closed, attached and fastened. Check for
bent or twisted guards or covers that will
prevent switches from lining up. See “Covers
and Guards”, page 32.
Wait 5 minutes. Press “RESET” button. See
“Motor Overload”, page 30.
Check amplifier. See “Amplifier”, pages
42–43 or “Electrical Schematic”, pages
66–67.
Check main, transformer and amplifier fuses.
See “Inspection”, pages 40–42.
Inspect electrical system. See “Inspection”,
pages 40–43.
See “Feeding Method”, page 29.
Perform complete electrical check on motor
starter. See “Electrical Schematics”, pages
66–67 or inside starter enclosure door.
Contact Urschel Laboratories for location of
nearest authorized motor service center.
See “Machine Overload or Jam”, page 30.
Sharpen or replace cutting head. See
“Resharpening Cutting Heads”, pages 38–39
and “Cutting Heads”, pages 54–57.
See “Feeding Method”, page 29.
Maintain incoming power to at least 95% of
specified voltage.
Contact Urschel Laboratories for location of
nearest authorized motor service center.
Machine Does
Not Start
Slow, Sluggish
Operation
Motor
Frequently
Becomes
Overloaded
PROBLEM CAUSE CORRECTION