Saturday, November 7, 2009

PLC Mitsubishi Programming for Heater Controller




PLC Type FX-Mitsubishi, Name Input / Output PLC :

INPUT PLC :
X000 ; Swicth for Heater ON - OFF
X001 ; NO Contact Contactor
X002 ; Alarm Heater Element Bournout Detector

OUTPUT PLC :
Y000 ; Power Temperature Controller
Y001 ; Alarm Heater Lamp ( RED Lamp )
Y002 ; Temperature is Reached Lamp ( GREEN Lamp ) 


Please Download Picture Programming Ladder PLC :

PLC Mitsubishi Programming for Heater Controller



Reading Ladder PLC Programming for Heater Controller :
Step 1 :
a.If X000 = ON Then M0 = Momentary ON ( Pulse ).
b.If M0 = ON And X000 = ON And M2 = OFF Then M1 = ON ( Hold ON ).

Step 2 : Check Alarm Heater
a.If X001 = ON And M1 = ON Then T0 Activated.
b.If T0 = ON And X002 = OFF Then SET M2 = ON ( Hold ON ).
c.If X000 = OFF Then RST M2 = ON ( M2 = OFF ).
See Picture to Set Value Timer for Stability Current from Power to Heater :
Set Value Timer T0 plc mitsubishi
Step 3 : Temperature is Reached
a.If X001 = ON And M1 = ON And X000 = ON And M2 = OFF Then M3 = ON ( Hold ON ).
b.If X001 = OFF And M3 = ON Then SET M4 = ON ( Hold ON ).
c.If M1 = OFF And X000 = OFF And M2 = ON Then RST M4 = ON ( M4 = OFF ).

Step 4 :
a.If M1 = ON Then Y000 = ON.
b.If M2 = ON Then Y001 = ON.
c.If M4 = ON Then Y002 = ON.

Please Download Programming for GX Developer :
PLC Mitsubishi Programming for Heater Controller


See : Heater controller with PLC


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