Sunday, November 8, 2009

PLC Keyence Programming for Injection Molding Machine




PLC Type KV Keyence , Name Input / Output PLC :

INPUT PLC :
0000 ; Push Button START
0001 ; NO Contact Contactor for Temperature is Reached
0002 ; Alarm Heater Element Bournout Detector
0003 ; Push Button STOP
0004 ; Alarm Motor, the Signal from the Speed Control Motor.
0005 ; Limit Switch Reverse from Cylinder Molding
0006 ; Limit Switch Forward from Cylinder Molding

OUTPUT PLC :
0500 ; Power Temperature Controller
0501 ; Speed Control Motor ( ON / OFF Motor for Screw )
0502 ; Solenoid to Pneumatic Cylinder Molding Forward
0503 ; Solenoid to Pneumatic Cylinder Molding Reverse


Please Download Picture Programming Ladder PLC :

PLC Keyence 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 1001 = ON And 1004 = ON And 0004 = ON Then 1005 = ON.
b.If 0000 = ON And 1005 = ON And 0003 = OFF Then 1006 = ON ( Hold ON ).
c.If 0005 = ON And 0006 = OFF And 1006 = ON And 1011 = OFF Then 1007 = ON ( Hold ON ).
d.If 0006 = ON And 0005 = OFF And 1006 = ON And 1010 = OFF Then 1008 = ON ( Hold ON ) And T001 Activated .
e.If 1008 = ON And T001 = ON And 1006 = ON And 1011 = OFF Then 1009 = ON ( Hold ON ) And T002 Activated.
f.If T001 = ON Then SET 1010 = ON ( Hold ON ).
g.If T002 = ON Then SET 1011 = ON ( Hold ON ).
h.If 1009 = ON And T002 = ON And 1006 = ON And 1010 = ON Or 1011 = ON Then 1012 = ON ( Hold ON ).
i.If 1012 = ON And 0005 = ON Or 1006 = OFF Then RES 1010 = ON ( 1010 = OFF ) And RES 1011 = ON ( 1011 = 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
Set Value Timer Keyence
Step 3 : Output PLC
a.If 1001 = ON Then 0500 = ON.
b.If 1008 = ON Then 0501 = ON.
c.If 1007 = ON Then 0502 = ON.
d.If 1012 = ON Then 0503 = ON.

Please Download Programming for KV Builder :
PLC Keyence Programming for Injection Molding Machine


See : PLC for Injection Molding Machine


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