Manual Operation; Returning To Reference Point Manually - Adtech ADTECH4 CNC Series Maintenance Manual

4.1 Returning to reference point manually

CNC machine tool has specific mechanical position, which is called as reference point and for tool
exchange and coordinates setting. Generally, when the power supply is connected, the tool should be moved to
the reference point. This operation is also called as home operation, which will make the CNC system confirm
the origin of machine tool.
The home operation includes program and mechanical mode:
For program home, the action completes when the coordinates of machine tool are 0, and won't check
whether origin switch is in position;
For mechanical home, the external home sensor switch is used to locate the origin of the machine tool;
two checking modes are available:
With the external sensor switch, the home operation completes when the sensing is successfully
repeatedly.
The external sensor switch is used as deceleration switch, the servo home is enabled as home signal after
sensing and then the sensing stops. You can set the "Home mode" in [Parameter] [Comprehensive Parameter],
in which 0 (default) indicates program and 1 indicates mechanical. You can also press [SBK] key in home
mode to switch among "Mechanical – Program – Mechanical..." quickly. This method doesn't conflict with
parameter setting. You can select accordingly. To use servo home as the home signal, you need to set "Axis
phase Z home enable" to "1" in [Parameter][Axis Configuration] in mechanical home mode, and the setting
will take effect in next home checking.
Several methods are available for tool returning to reference point and the steps follow:
(1) Each axis returns to reference point separately
 Press the mode switch key [Home] to select home operation;
 Press the composite key [X-], [Y-], [Z-], [A-] in the numbers section to return the
corresponding axis to reference point.
(2) The axes return to reference point simultaneously
 Press the mode switch key [Home] to select home operation;
 Press the [Start] key to return Z axis to reference point, and other axes return to reference
point simultaneously. The automatic home sequence can be configured in the parameters.
ADTECH4 SeriesCNC Maintenance Manual

4. Manual Operation