PLC Type FX-Mitsubishi, Name Input / Output PLC :
INPUT PLC :
X000 ; Push Button START
X001 ; NO Contact Contactor for Temperature is Reached
X002 ; Alarm Heater Element Bournout Detector
X003 ; Push Button STOP
X004 ; Alarm Motor, the Signal from the Speed Control Motor.
X005 ; Limit Switch Reverse from Cylinder Molding
X006 ; Limit Switch Forward from Cylinder Molding
OUTPUT PLC :
Y000 ; Power Temperature Controller
Y001 ; Speed Control Motor ( ON / OFF Motor for Screw )
Y002 ; Solenoid to Pneumatic Cylinder Molding Forward
Y003 ; Solenoid to Pneumatic Cylinder Molding Reverse
Please Download Picture Programming Ladder PLC :
PLC Mitsubishi Programming for Injection Molding Machine
Reading Ladder PLC Programming for Injection Molding Machine :
Step 1 : Heating Process
Heater Controller with PLC
Step 2 : Injection Molding Process
a.If M1 = ON And M4 = ON And X004 = ON Then M5 = ON.
b.If X000 = ON And M5 = ON And X003 = OFF Then M6 = ON ( Hold ON ).
c.If X005 = ON And X006 = OFF And M6 = ON And M11 = OFF Then M7 = ON ( Hold ON ).
d.If X006 = ON And X005 = OFF And M6 = ON And M10 = OFF Then M8 = ON ( Hold ON ) And T1 Activated .
e.If M8 = ON And T001 = ON And M6 = ON And M11 = OFF Then M9 = ON ( Hold ON ) And T2 Activated.
f.If T1 = ON Then SET M10 = ON ( Hold ON ).
g.If T2 = ON Then SET M11 = ON ( Hold ON ).
h.If M9 = ON And T2 = ON And M6 = ON And M10 = ON Or M11 = ON Then M12 = ON ( Hold ON ).
i.If M12 = ON And X005 = ON Or M6 = OFF Then RST M10 = ON ( M10 = OFF ) And RST M11 = ON ( M11 = OFF ).
See Picture to Set Value Timer for :
1. Stability Current from Power to Heater
2. Volume of Materials into Molding Dies
3. Wait for the cool Material
Step 3 : Output PLC
a.If M1 = ON Then Y000 = ON.
b.If M8 = ON Then Y001 = ON.
c.If M7 = ON Then Y002 = ON.
d.If M12 = ON Then Y003 = ON.
Please Download Programming for GX Developer :
PLC Mitsubishi Programming for Injection Molding Machine
See : PLC for Injection Molding Machine
INPUT PLC :
X000 ; Push Button START
X001 ; NO Contact Contactor for Temperature is Reached
X002 ; Alarm Heater Element Bournout Detector
X003 ; Push Button STOP
X004 ; Alarm Motor, the Signal from the Speed Control Motor.
X005 ; Limit Switch Reverse from Cylinder Molding
X006 ; Limit Switch Forward from Cylinder Molding
OUTPUT PLC :
Y000 ; Power Temperature Controller
Y001 ; Speed Control Motor ( ON / OFF Motor for Screw )
Y002 ; Solenoid to Pneumatic Cylinder Molding Forward
Y003 ; Solenoid to Pneumatic Cylinder Molding Reverse
PLC Mitsubishi Programming for Injection Molding Machine
Reading Ladder PLC Programming for Injection Molding Machine :
Step 1 : Heating Process
Heater Controller with PLC
Step 2 : Injection Molding Process
a.If M1 = ON And M4 = ON And X004 = ON Then M5 = ON.
b.If X000 = ON And M5 = ON And X003 = OFF Then M6 = ON ( Hold ON ).
c.If X005 = ON And X006 = OFF And M6 = ON And M11 = OFF Then M7 = ON ( Hold ON ).
d.If X006 = ON And X005 = OFF And M6 = ON And M10 = OFF Then M8 = ON ( Hold ON ) And T1 Activated .
e.If M8 = ON And T001 = ON And M6 = ON And M11 = OFF Then M9 = ON ( Hold ON ) And T2 Activated.
f.If T1 = ON Then SET M10 = ON ( Hold ON ).
g.If T2 = ON Then SET M11 = ON ( Hold ON ).
h.If M9 = ON And T2 = ON And M6 = ON And M10 = ON Or M11 = ON Then M12 = ON ( Hold ON ).
i.If M12 = ON And X005 = ON Or M6 = OFF Then RST M10 = ON ( M10 = OFF ) And RST M11 = ON ( M11 = OFF ).
See Picture to Set Value Timer for :
1. Stability Current from Power to Heater
2. Volume of Materials into Molding Dies
3. Wait for the cool Material
Step 3 : Output PLC
a.If M1 = ON Then Y000 = ON.
b.If M8 = ON Then Y001 = ON.
c.If M7 = ON Then Y002 = ON.
d.If M12 = ON Then Y003 = ON.
Please Download Programming for GX Developer :
PLC Mitsubishi Programming for Injection Molding Machine
See : PLC for Injection Molding Machine