COATS 16 Bit PCB & Metal Arm Temporary - Manual (Page 3)

Error
Err. 11
Err. 12
Err.13
Err.14
Err.17
Err.18
Err.15 /
Err.16 /
Err.19
Err.20
Err. 21
Err. 22
Err. 23
Err. 25
Err. 30
Err.40,41
42, 43
Err.45,
46, 47,
48
Err.50,
51, 52,
53
Symptom
High speed error.
During rotation to measure the
unbalance value, the wheel
speed has gone over 270 r.p.m.
Error in the unbalance measuring
cycle.
Error in the unbalance measure-
ment.
Over ranging - too much unbal-
ance
Wheel stopped before it was
positioned or before taking
runout reading.
Weight dispenser time out.
Error in calculating impulses
referred to the weight to cut
(impulses = 0). (weight dis-
penser)
STOP button pushed during the
weight dispenser operation.
Number of impulses referred to
the correction weight lower than
number of anticipated impulses.
(weight dispenser)
Clock error
Error in creating the runout graph.
Error in the reading of the values
which are used to create the
runout graph.
Error in the writing procedure of
the cursor for the current value of
the runout graph.
Check
1. Check for possible damage or dirt on the encoder disc - clean dirt with a
soft cloth - blow air across the optical units.
2. Check the operation and adjustment of the encoder and in particular, of
the reset signal. (in MACHINE SELF-TEST “green screen”, Pos counts
from 0 to 255 and then 0 again). UP = cw. DOWN = ccw.
3. Replace the main PCB.
1. Press EXIT and respin. Check PHASE in MACHINE SELF-TEST”green
screen”, if 180 deg diff., recalibrate & check piezos.
2. Check encoder adjustment and operation. (clearance .020” to .035”)
3. Check motor operation.
4. Check belt tightness.
5. Check hub nut tightness.
6. Replace the main PCB.
1. Press EXIT and respin. Check PHASE, VCO (dynamic), VCI (static) in
MACHINE SELF-TEST “green screen”.
2. Check the piezo pick-ups connection. (electrical & mechanical)
3. Check the balancer spindle connections.
4. Mount a wheel having a known unbalance (lower than 4 oz or 100
grams) and check the balancer readings.
5. Replace the PC board.
A.) Follow screen instructions for “heavy side” down balancing to bring
wheel unbalance into range and then balance normally.
B.) Follow instructions 1 thru 5 above.
1. Wheel too light - not enough inertia. Use heavier wheel.
2. Check positioning of sonar unit behind wheel.
1. Press MENU and 5 - turn OFF weight dispenser function.
1. Press MENU and 5 - turn OFF weight dispenser function.
1. Press MENU and 5 - turn OFF weight dispenser function.
1. Press MENU and 5 - turn OFF weight dispenser function.
1. Replace the PC board
Execute a new Runout measurement.
1. Execute a new runout measurement.
1. Execute a new runout measurement.
8113936 00 10/04 page 3 of 4