COD.642400 Rev. 1
19
CHECKS TO CARRY OUT
BY SKILLED PERSONNEL
TEMPORARY BALANCING OF A WHEEL
When balancing a wheel without weights for the purpose of testing the balancing machine, press "O 7 5 E"
and then start up normally. In this way the balancing machine registers the imbalance figures and cancels
them. This function cannot be memorized and is cancelled as soon as the machine is switched off, or by
pressing "C 5 3 O E".
+5 V. TENSION DISPLAY
To display this tension press the buttons "C 2 E" and "t2" appears on the left display and on the right the
figure, which should be between 4.9 and 5.1.
+8 V. TENSION DISPLAY
To display this tension press the buttons "C 3 E" and "t3" appears on the left display and on the right the
figure, which should be between 7.7 and 8.3.
-12 V. TENSION DISPLAY
To display this tension press the buttons "C 4 E" and "t4" appears on the left display and on the right the
figure, which should be between 11.8 and 12.2.
PICK-UP TENSION DISPLAY
To display the tension read in the last measurement, press "C6 E" and on the left display the internal pick-
up reading appears and on the right the outer pick-up. The correct functioning of the pick-ups can be
checked as follows: the voltage of the inner pick-up should always be smaller than the external pick-up
reading. The ratio between the external and internal pick-up readings should never exceed 3.5 and should
never be less than 1.5.
PICK-UP PHASE DISPLAY
To display the phase of the last measurement, press "C 1 7 E" and the internal pick-up reading appears on
the left-hand display, and on the right the external reading. The correct functioning of the pick-up can be
checked as follows: start up with only the flange with the sample weight fitted. The difference between the
two angles should be 180° (0 - 180° +/- 1°)
N.B. CHECKS ONLY FOR MACHINES WITH AUTOMATIC GAUGE
HEIGHT POTENTIOMETER TENSION DISPLAY
To display the height potentiometer tension, press "C 1 1 E" and on the left display "ALT appears while on
the right the tension corresponding to the position of the gauge (for example 2.4).
WIDTH POTENTIOMETER TENSION DISPLAY
To display width potentiometer tension, press "C 1 2 E" and on the left display "LAR" appears while on the
right the tension corresponding to the position of the gauge (for example 3.2).
COMPENSATION DISTANCE POTENTIOMETER TENSION DISPLAY
To display compensation distance potentiometer tension, press "C 1 3 E" and on the left display "DIS"
appears while on the right the tension corresponding to the position of the gauge (for example 1.8).
CONCERNING THE ACCURACY OF THE POTENTIOMETERS
With the codes C11 - C12 - C13 the various potentiometer readings are displayed. To assess the accuracy
of these the following rules should be kept in mind:
1. Changing the mechanical position of the potentiometer should change the corresponding tension. More
precisely, this should increase when the compensation distance and height measurements increase, but for
width, the tension increases when width decreases.
2) The tension readings obtained with C11 - C12 - C13 should never be 0.0 or 5.0 (with an accuracy of +/-
0.1. because this would mean that there was a short circuit caused by a broken or detached wire.
MEMORIZING DATA
It must be remembered that any setting operation or function modification must be memorized before
starting a new work cycle. This is done by pressing "STOP - CAL - 5 2 6 E".
CHECKING MOTOR ROTATION SPEED
To check motor rotation in revolutions per minute, press "C 5 E" and then "START". The r.p.m. for the first
minute will be displayed on the right. The minimum acceptable figure is 445 r.p.m and the maximum 455
r.p.m.
To Next Page
Loading...
