Cookson FDO-A10, Руководство пользователя

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MOTOR OPERATOR MAINTENANCE
MOTOR OPERATOR TROUBLE SHOOTING GUIDE
14. Check motor amperage draw for a full open and close cycle. Compare readings to those
9. Inspect the electrical enclosure for debris, arcing and moisture. Check for and tighten
8. Verify that all conduit connections are tight and have no exposed wires.
7. Generally inspect the motor mounting, and tighten the fasteners and bracing.
6. Inspect roller chain and drive sprockets. Align, lubricate the sprockets, and tighten the set screws.
1. Check wire connections for tightness and wire insulation for defects or abrasions.
listed on the motor nameplate.
13. Test the operation of the safety edge.
12. Examine safety edge, coil cord and take up reel for damage.
11. Check limit switch settings.
10. Test motor operation through all control stations.
loose wiring connections.
5. Inspect gearbox for leaks.
4. Inspect operation of brake.
3. Check wires to safety edge or photo-eyes.
2. Check to see that all conduit connections are secure.
SYMPTOM POSSIBLE CAUSE REPAIR
Motor does not run when
OPEN or CLOSE button is Circuit breaker tripped or power
fuse blown Check circuit breaker, power
fuses, safety switch, check cause
Thermal overload tripped
Reset; check cause
Secondary transformer fuse blown
Check fuse, check cause
pushed
External interlock open. (if supplied) Close interlocks
Motor runs but door
does not move
Sprocket key missing or drive chain
broken.
Check drive train for operation
Intermediate shaft or key damaged.
Close & lock off door, remove
motor and inspect; check cause
Motor hums but does
not run
Door jammed. Drive train jammed. Check door. Try to operate
manually
Brake does not release.
Check power to brake coil.
Open motor winding
Check all motor connections.
Operator runs in wrong
direction and limits do
not function
Motor leads are reversed
Interchange any 2 power leads
to unit.
Note: All units are checked for proper rotation at factory. Limit switch
adjustment instructions in electrical enclosure indicates proper
direction of travel for OPEN and CLOSE limit nuts.
Limit switches do not
hold their settings.
Drive chain loose, allows chain to
jump sprocket teeth.
Adjust chain to proper tension.
Limit nut retainer not engaging
slots in limit nuts.
Be sure retainer is in slots of
BOTH units
Limit nuts binding on screw threads
which allows them to jump
position on retainer.
Lubricate screw thread. Limit nuts
should turn freely.
Door "drifts" when motor
shuts off.
Brake inoperative or worn
Check brake operation.
Operator does not shut
off at full OPEN or at full
CLOSE position
Limit nuts not adjusted properly.
Adjust (See above)
Sprocket on limit shaft loose
or limit drive chain broken
Inspect limit chain & sprocket.
Adjust chain tension, replace
sprocket & chain if required.
Defective limit switch
Operate limit switch manually
to determine.
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