BETCO CCRRSS2288, Operator'S Manual

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rc2202rev06-gb Data 12/00 - GG Rev. 06 03/03 - MZ Page 6 of 15
Number of
blinkings
MESSAGE NOTES
4
VACC NOT OK
The alarm indicates, that the voltage of the
potentiometer is more than 1 volt higher than the
memorised minimum value
Possible causes
-
The operator has pushed the accelerator before the speed
was selected through the manipulator
-
The seat-microswitch does not work
-
The potentiometer and/or chopper were replaced and the
relating values between the two components must be re-
programmed
-
A cable of the potentiometer is interrupted
-
The potentiometer is faulty
-
The PROGRAM VACC (see chapter adjustment and
inspection) has not been carried out correctly
Actions
-
Select the speed and push afterwards the accelerator
-
Verify the seat-microswitch and the continuity of the
connections between microswitch and chopper
-
Verify the continuity of the connections between the
potentiometer and the chopper
-
Re-program the chopper with PROGRAM VACC (see chapter
adjustment and inspections)
-
Verify the functionality of the potentiometer with the function
TESTER of the console (it could be broken) and replace it if
necessary (re-programming the chopper card afterwards with
PROGRAM VACC)
5
I HIGH AT STAND
Test in resting conditions: control if the current is zero.
Possible causes
-
Damaged current sensor inside the chopper
-
Damaged logic
Actions
-
Replace the chopper if the problem persists
6
NPOT NOT OK
Permanent Test: anomalous negative of the
potentiometer = 0
Possible causes
-
A cable of the potentiometer is not connected
-
Damaged potentiometer
Actions
-
Verify the continuity of the connections of the potentiometer
-
Verify the functionality of the potentiometer with the function
TESTER of the console (could be interrupted) and replace it if
necessary (re-programming the chopper card with PROGRAM
VACC afterwards)