COATS 6275HS Truck Wheel Balancer - Manual (Page 16)

I 0708 - 15 GB
7 - ERRORS
During machine operation, various causes of faulty operation could occur. If detected by the microprocessor, they appear
on the display as follows:
ERRORS CAUSES CONTROLS
Black The wheel balancer does not come on. 1. Check proper connection to the mains.
2. Check and if necessary replace the fuses on the power board.
3. Replace the computer board.
Err. 1 No rotation signal. 1. Check belt tautness.
2. Check in self-diagnostics that the encoder functions properly.
3. Replace the phase generator.
4. Replace the computer board.
Err. 2 Too low speed during measurement.
During the unbalance measurement
revolutions, the wheel speed has fallen to
below 42 rpm. 1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check in self-diagnostics that the encoder functions properly.
4. Detach the measuring head connector from the board and do a
spin (if no error is detected, replace the measuring heads).
5. Replace the computer board.
Err. 3 Too high unbalance. 1. Check the wheel dimension setting.
2. Check the sensor connections.
3. Run the machine calibration function.
4. Mount a wheel with an approximately known unbalance (less than
100 grams) and check the machine response.
5. Replace the computer board.
Err. 4 Rotation in opposite direction.
After pressing [START], the wheel
starts turning in the opposite direction
(anticlockwise). 1. Verify the connection of the UP/DOWN - RESET signals on the
phase encoder.
2. Check the bearing/spring of the phase generator
Err. 7 /
Err. 8 /
Err. 9 NOVRAM parameter read error 1. Repeat machine calibration
2. Shut down the machine.
3. Wait for at least ~ 1 min.
4. Restart the machine and check proper functioning.
5. Replace the computer board.
Err.14/
Err.15/
Err.16/
Err.17/
Err. 18/
Err. 19 Unbalance measurement error. 1. Check functioning of the phase generator.
2. Check the sensor connections.
3. Check the machine earthing connection.
4. Mount a wheel with an approximately known unbalance (less than
100 grams) and check the machine response.
5. Replace the computer board.
Err.22 Maximum number of spins possible for
the unbalance measurement has been
exceeded. 1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check in self-diagnostics that the encoder functions properly
4. Replace the computer board.
Err. 23 The wheel does not slow down 1. Remember to release the spinning device when the displays go off
2. Check functioning of the phase generator.
3. Replace the computer board.
Err. 24 Distance between the spokes smaller
than 18 degrees. 1. The minimum distance between the spokes where to split the
unbalance must be greater than 18 degrees
2. Repeat the SPLIT function increasing the distance between the
spokes.
Err. 25 Distance between the spokes greater
than 120 degree 1. The minimum distance between the spokes where to split the
unbalance must be smaller than 120 degrees
2. Repeat the SPLIT function increasing the distance between the
spokes.
Err. 26 First spoke too far from unbalance position 1. The minimum distance between the unbalance position and the
spoke must be less than 120 degrees.
2. Repeat the split function reducing the distance between the
spokes.
Battery low 1. Recharge the battery