CEMB USA C73-L SE (A) - Manual (Page 33)

I 0643 - 33 GB
ON
Err.13 /
Err.14 /
Err.15 /
Err.16 /
Err.17 /
Err.18 Unbalance measurement error. 1. Verify phase pick-up board function.
2. Check detection unit connections.
3. Verify machine earth/ground connection.
4. Mount a wheel with more or less known unbalance (less than 100
grammes) and verify the response of the machine.
5. Replace the computer board.
Err. 20 The wheel comes to a halt before comple-
ting positioning correctly. 1. Make sure that the wheel to be balanced is at least 10” in diame-
ter.
2. Verify the correct setting of wheel dimensions on screen.
3. Verify belt tautness.
4. For wheels less than 12” in diameter wheels: disenable the
eccentricity measurement procedure
Err.40/
Err.41/
Err.42/
Err.43 Eccentricity graph plotting procedure error. Perform a new eccentricity measurement.
Err.45/
Err.46/
Err.47/
Err.48 Eccentricity graph value display readout
error. Perform a new eccentricity measurement.
Err.50/
Err.51/
Err.52/
Err.53 Eccentricity graph current value cursor
plotting procedure error. Perform a new eccentricity measurement.
Err.54 Sonar readout error.
Sonar value readout impossible. 1. Position the eccentricity measurement sonar correctly before
performing the measurement.
2. Check eccentricity sonar connections.
3. Check the power supplies on the power card.
4. Replace the eccentricity measurement sonar.
5. Make sure that the wheel does not halt before completing at least
4/5 revolutions after the fi rst braking impulse.
6. Verify belt tautness.
7. Replace the computer board.
Err.55 Sonar readout error.
Sonar values are insuffi cient for correct
measurement of eccentricity. 1. Position the eccentricity measurement sonar correctly before
performing the measurement.
2. Make sure that the wheel does not halt before completing at least
4/5 revolutions after the fi rst braking impulse.
3. Verify belt tautness.
4. Mount a wheel of medium dimensions (14”x5 ¾”) and perform an
eccentricity measurement . If in these conditions error 55 no longer
occurs, this means that the wheel inertia causing the problem is
such as to half the wheel before having acquired the minimum
number of values necessary for reliable eccentricity measurement.
9 - ROUTINE MAINTENANCE
Before performing any action on the plant, isolate the electrical power supply.
9.1 - To replace the fuses ►
Remove the weight holder shelf to gain access to the power supply board where the 4 fuses are located (see Explo-
ded Drawings). If fuses require replacement, use ones of the same current rating. If the fault persists, contact
Technical Service.
NONE OF THE OTHER MACHINE PARTS REQUIRE MAINTENANCE.