CEMB USA C75SE (B) - Manual (Page 30)

I 0292 - 30
I 0292 - 31
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8 - ERRORS
ERRORS CAUSES CONTROLS
Err. 1 No rotation signal. 1. Verify belt tautness.
2. Verify the function of the phase pick-up board and, in
particular, the reset signal.
3. Replace the phase pick-up board.
4. Replace the computer board.
Err. 2 Speed too low during detection.
During unbalance measurement
rotation, wheel speed is less than
42 rpm.
1. Make sure that a vehicle wheel is mounted on the wheel
balancer.
2. Verify belt tautness.
3. Verify the function of the phase pick-up board and, in
particular, the reset signal.
4. Replace the computer board.
Err. 3 Unbalance too high. 1. Verify wheel dimension settings.
2. Check detection unit connections.
3. Perform machine calibration.
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. 4 Rotation in opposite direction.
After pressing [START], the wheel
begins to rotate in the opposite
direction (anticlockwise).
1. Verify the connection of the UP/DOWN – RESET
signals on the phase pick-up board.
Err. 5 Guard open
The [START] pushbutton was pres-
sed without first closing the guard.
1. Reset the error by pressing pushbutton [7]=End.
2. Close the guard.
3. Verify the function of the protection uSwitch.
4. Press the [START] pushbutton.
Err. 7 /
Err. 8
NOVRAM parameter read error 1. Repeat machine calibration
2. Shut down the machine.
3. Wait for a minimum time of ~ 1 Min.
4. Re-start the machine and verify correct operation.
5. Replace the computer board.
Err. 9 NOVRAM parameter write error. Replace the computer board.
Err. 11 Speed too high error.
During unbalance measurement
rotation, wheel speed is more than
270 rpm.
1. Check if there is any damage or dirt on the timing disc.
2. Verify the function of the phase pick-up board and, in
particular, the reset signal.
3. Replace the computer board.
Err. 12 Unbalance measuring cycle error. 1. Verify phase pick-up board function.
2. Verify correct motor operation.
3. Verify belt tautness.
4. Replace the computer board.
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.
CAUTION
Error N°
Guard open