18 •
Important: Always read and follow instructions.
Alarm Signal
The machine has a self-diagnostics cycle which
identifies the most frequent malfunctions during the
normal work cycle. These malfunctions are processed
by the system and shown on the display.
Note:
The information in the POSSIBLE REMEDY
column requires work to be performed by specialist
technicians or other authorised people who must
always work using the Personal Protective Equipment
indicated in the INSTALLATION manual. In some
cases, this work can be performed by a normal opera-
tor. Installation Instructions
ERROR
PROBLEM
POSSIBLE SOLUTIONS
Black
Wheel balancer does not switch on
• Verify correct connection to the mains
• Verify and eventually replace the fuses on the power card
• Verify monitor function
• Replace the computer board
Err. 1
No rotation signal
• Check in self-diagnostics that the encoder functions properly
• Replace the phase pick-up board
• Replace the computer board
Err. 2
Speed too low during detection
During the unbalance measurement
revolutions, the wheel speed has
fallen to below 42 rpm
• Make sure that a vehicle wheel is mounted on the wheel
balancer
• Use the self-diagnostics function to check the encoder
• Disconnect the piezo connectors from the board and do a
spin (if no error is detected, replace the piezo sensors)
• Replace the CPU board
Err. 3
Unbalance too high
• Verify wheel dimension settings
• Check detection unit connections
• Perform machine calibration
• Mount a wheel with more or less known unbalance
(less than 100 grams) and verify the response of the machine
• Replace the computer board
Err. 4
Rotation in opposite direction
After pressing [START], the wheel
starts turning in the opposite direc-
tion (anticlockwise)
• Check in self-diagnostics that the encoder functions properly
• Check the bearing/spring of the phase generator
Err. 5
Guard open
• Reset the error
• Close the guard
• Verify the function of the protection Switch
Err. 7/
Err. 8/
Err. 9
NOVRAM parameter read error
• Switch off the machine and wait for at least ~ 1 min.;
re-start the machine and check it works properly
• Repeat machine calibration
• Replace the computer board
Summary of Contents for Coats 1185
Page 29: ...Important Always read and follow instructions 23 Notes...
Page 30: ...24 Important Always read and follow instructions Notes...
Page 31: ...Important Always read and follow instructions 25 Notes...
Page 32: ...85611754 00 08 20 Copyright 2020 Hennessy Industries LLC All Rights Reserved Printed in USA...
