Specialized Concentrated Focused
System
port No.
Terminal
name
E
GX15
F
GX16
Corresponding signal
E-stop alarm signal
Tool presetter signal
Remark
External connection with E-stop
button on the machine tool
System
port No.
0
1
2
3
4
5
6
7
Table 8 Corresponding signals of system output ports
Terminal
name
Corresponding signal
Remark
GY013(SP-) Spindle reverse rotation
GY014(SP+)
GY15(S_2)
GY16(S_1)
GY17(S_0)
Spindle forward rotation
2nd gear output port of spindle
speed
1st gear output port of spindle
speed
0th gear output port of spindle
speed
Multi-gear spindle speed control
ports: they can provide at most
8-gear speed control; in wiring,
COM at the inverter end needs
joining to the GND terminal.
GY18
Workpiece cooling
GY19
Spindle coolant
GY20
Auto lube
5.4. Back to Machine Origin
Origin of Machine Coordinate System (the inherent coordinate system of a machine tool), also
called machine origin, mechanical zero, or home, is fixed after design, manufacturing and debugging
before the machine tool leaving factory. Only after backing to machine origin can such operations as
soft limit, setting fixed point and tool change be enabled. Therefore, after startup of CNC system, it is
necessary to home all the axes. This system will remind to back to machine origin after start-up.
If homing can’t be executed due to home switch fault, it is necessary to set the parameter “Back
REF First” to “No”.
5.4.1. Parameter Setup of Backing to Machine Origin
The parameter “REF. PointSet” includes the setting of “REFP Speed”, “REFP Dir” and “Retract
Dist”.
Press “Menu”→ 5. Mfr Param→ 5. REF. PointSet, and then press the [OK] key to enter the setting
interface of backing to machine origin, in which press the “Up” or “Down” key to select the
corresponding parameter to be modified.
“REFP Speed”: it is the speed of rough positioning during backing to machine origin, i.e. the
motion speed of an axis towards the home switch during rough positioning. The value of this
parameter should be set in accordance with the integral structure of a machine tool. And too fast
Machine Tool Debugging「27」
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