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8.8.14
Adjusting sensor S2 in ISO versions
After replacing the sensor as described in paragraph 8.8.12, calibrate it as follows:
1.
correctly attach a tool-holder before beginning the adjustment of the sensor;
2.
check that, in this state, the output of S2 is
“OFF”
; if the output is
“ON”,
rotate the sensor unit
until it becomes
“OFF”
;
3.
feed the air input for a tool change of the cylinder, using a one-way pressure regulator initially
set at 0 bar;
4.
gradually increase the feed pressure so as to move the piston slowly forward and, at the same
time, check that the output of S2 is
“OFF”
;
5.
as long as the tool-holder is firmly blocked, the output of S2 must be
“OFF”
; if the output
changes during the movement of the piston, slightly rotate the sensor unit until the output
returns to
“OFF”
;
6.
when the tool-holder begins to slacken (but is not yet free to fall), the output of S2 must still be
“OFF”
(if necessary, rotate the sensor unit);
7.
when you reach the feed pressure at which the tool-holder is finally free to fall, increase the
pressure by another 0.2 bar and block the pressure regulator;
8.
rotate the sensor unit so that, in this state, the output of S2 is
“ON”
, then fix it by tightening the
screw (3);
9.
perform a cycle of 10 tool changes;
10.
at the end of the cycle, check that the steps from [1] to [8] are satisfied, without the need to
ever rotate the sensor;
11.
if the outputs requested are not satisfied, repeat the entire procedure from the start;
12.
if the outputs requested are satisfied, perform a cycle of 100 tool changes with the machine,
using the maximum possible number of different tool-holders;
13.
at the end of the cycle, check that the steps from [1] to [8] are satisfied, without the need to
ever rotate the sensor;
14.
if the outputs requested are not satisfied, repeat the entire procedure from the start;
15.
if the outputs requested are satisfied, the regulation procedure for S2 is complete.
