raj_deshani
Member
how to make ladder logic for controlling DC motor??
Dc motor control
- Thread starter raj_deshani
- Start date
the_msp
Lifetime Supporting Member
What do you want to control? On off? Analog speed? What voltage is the DC motor? What PLC are you using?
rdrast
Lifetime Supporting Member
The same way you 'make ladder logic' for anything.
Start by understanding the process, and what you need to accomplish, but you have to start there. If you want me to do it for you, there must be payment involved.
Start by understanding the process, and what you need to accomplish, but you have to start there. If you want me to do it for you, there must be payment involved.
raj_deshani
Member
OP
Dear Patrick
I want to control on off and analog
Speed and DC mtor is 200RPM and using Delta PLC
I want to control on off and analog
Speed and DC mtor is 200RPM and using Delta PLC
the_msp
Lifetime Supporting Member
Dear Raj,
what voltage is the motor?
what voltage is the motor?
raj_deshani
Member
OP
Dear Patrick
Its 12V DC motor
Its 12V DC motor
raj_deshani
Member
OP
Dear Patrick
My aim is investigate controlling a DC Motor using a Programmable Logic Controller (PLC) instead of micro-controller chips.
My aim is investigate controlling a DC Motor using a Programmable Logic Controller (PLC) instead of micro-controller chips.
the_msp
Lifetime Supporting Member
OK, here is the hardware you need:
-PLC with 2 digital outputs and 1 analog output (current, or voltage - if current you additionally need a 250Ohm Precision resistor)
- 3 x SPCO relays
- DC power supply with 12V DC output
- DC motor controller
I can provide links to Radio Spares online parts for these, do you have that supplier in your country?
Let me know when you have the hardware and I will provide instructions on how to wire together and then program.
How do you want to control the speed? Potentiometer, HMI, other?
-PLC with 2 digital outputs and 1 analog output (current, or voltage - if current you additionally need a 250Ohm Precision resistor)
- 3 x SPCO relays
- DC power supply with 12V DC output
- DC motor controller
I can provide links to Radio Spares online parts for these, do you have that supplier in your country?
Let me know when you have the hardware and I will provide instructions on how to wire together and then program.
How do you want to control the speed? Potentiometer, HMI, other?
raj_deshani
Member
OP
I will use potentiometer for it and send me
Link for spares can I get u r email address to ???
Link for spares can I get u r email address to ???
raj_deshani
Member
OP
My SCP(scale w/parameters)
Input Max will be like 5
Input Max will be like 5
the_msp
Lifetime Supporting Member
OK then you also need an analog input module for the pot. I will suggest a toggle switch for the on/off. Do you want it bi-directional? (Forward and reverse)
List (or PM me) your email and I will send you a copy of the parts from the RS website
List (or PM me) your email and I will send you a copy of the parts from the RS website
raj_deshani
Member
OP
No Bidirection is not neccesary
the_msp
Lifetime Supporting Member
OK, that changes the quantity of SPCO relays from 3 to 1. What is your PLC output module - transistor or relay?
You mentioned SCP. That is an allen bradley term, is it the same instruction in Delta? You say input 5 - 5 what? Volts? Hertz? RPM?
You mentioned SCP. That is an allen bradley term, is it the same instruction in Delta? You say input 5 - 5 what? Volts? Hertz? RPM?
raj_deshani
Member
OP
My Output Module is Relay am sorry i send u info of Allen Bradley but I want
To use in Delta
To use in Delta
the_msp
Lifetime Supporting Member
Well I'm sorry but Allen Bradley is what I use - so that's what I will be sending. You can convert to Delta as the program is very simple. Or, if you want a turn key program in Delta, as rdrast says, I can email you a quote
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