3.1.2 External Joystick Function

If user wants to use an external joystick to operate the machine in manual mode like the conventional milling machine, it can be done by adding some I/Os as the following description.

Connect X+/X-/Y+/Y- outputs of the joystick to X5/X6/X7/X8 on digital input terminal block, and Z+/Z- to pin11/pin13 on spindle connector.

X1~X8: Digital input terminal block

Pin	Definition	Explain	Corresponding LED indicator
X1	Digital input point 1	Spindle CW signal in manual mode	X-1
X2	Digital input point 2	Spindle CCW signal in manual mode	X-2
X3	Digital input point 3	Status input of spindle high/low gear. Contact when in high gear.	X-3
X4	Digital input point 4	External handshake M code input point	X-4
X5	External joystick X+	Reserved input point	X-5
X6	External joystick X-	Reserved input point	X-6
X7	External joystick Y+	Reserved input point	X-7
X8	External joystick Y-	Reserved input point	X-8
COM	Common point of digital inputs	NPN connection: External 24V PNP Connection: External 0V	NA
E24V	External 24V	It is connected to VI of SP and MPG, use to provide SP, MPG external 24V	NA
E24G	External 24V voltage reference point	It is connected to VG of SP and MPG, use to provide SP, MPG external 0V	NA

SP: Spindle connector

Pin	Definition	Explain	Corresponding LED indicator
1	Velocity command	±10V analog output	NA
2	Velocity command reference point	±10V analog output reference point	NA
3	Spindle CW	Photocoupler output point +, common conduction to output signal	NA
4	Spindle CCW	Photocoupler output point +, common conduction to output signal	NA
5	Rigid tapping	Photocoupler output point +, common conduction to output signal	NA
6	Spindle positioning	Photocoupler output point +, common conduction to output signal	NA
7	Common point of output signals	Photocoupler output point -	NA
8	Spindle override analog input	Adjust spindle override in manual mode	NA
9	analog input reference point	Analog input reference point	NA
10	Spindle alarm	Input point, PNP or NPN input	NA
11	External joystick Z+	Input point, PNP or NPN input	NA
12	Spindle speed arrival	Input point, PNP or NPN input	NA
13	External joystick Z-	Input point, PNP or NPN input	NA
14	Common point of input signals	Input point NPN connection: External 24V connection Input point PNP Connection: External 0V connection	NA
15	A+	Spindle encoder A+ signal input	NA
16	A-	Spindle encoder A- signal input	NA
17	B+	Spindle encoder B+ signal input	NA
18	B-	Spindle encoder B- signal input	NA
19	Z+	Spindle encoder Z+ signal input	NA
20	Z-	Spindle encoder Z- signal input	NA
21	5V	Power supply for spindle encoder (Power: 1W per axis)	NA
22	5G	5V Power reference point	NA
23	VI	External 24V, provided by E24V pin of Digital input terminal block	NA
24	VG	External 24V power reference point, connect with E24G pin of Digital input terminal block	NA
25	NC	Empty	NA
26	NC	Empty	NA

After wiring modification, go to program page and "OPEN" a CNC file from USB disk, please refer to 5.2 File Operation.

The content of this CNC file is M221, H_, fill in _ with 1 or 0 to turn on or off the external joystick function.

In manual page, user can control the axial movement by using the joystick directly without selecting an axis on UI first. Override can be adjusted through rotating the knob. In addition, press the knob to change the increment step of override, 1 % or 10 %, so that user can get the appropriate feed rate for processing.

The upper bound of moving speed is limited by JOG speed in axial setting. If JOG speed in axial setting is 2500 mm/min and override percentage is set to 20 %, the actual moving speed is 500 mm/min. In the same way, moving at 25 mm/min when override is 1 %, and so on.