ELECTRICAL LAYOUT FOR TOOL-HOLDER MANUAL RELEASE
CIRCUIT
When the spindle is rotating, a control system must deactivate the command arriving from the button.
The activation of the button must only be possible with the spindle idle.
The tool block/release operation via the button must only be carried out with the
machine in MANUAL working mode (not AUTOMATIC).
The tool could be ejected at high speed if the safety conditions described above
are not respected.
7-8 Signal terminal position 7 and 8
B Manual Tool release button
Pressure switch that, in the event of low
P pressure, does not allow the release of the
tool holder
C Safety check (device at null speed)
E Tool release solenoid valve
When the "B" button is pressed, the
solenoid valve "E" of the coil can be
electrified, and the tool was
released.
Press the button "B" button to
release tool holder.
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