Hey Everyone,
I have a Modicon TM221C16T hooked up to a Dynapar ha625 2000ppr encoder. It is sending the information to a Magelis HMI.
I am setting it up so the user can enter a value in the hmi and then the plc will close a contactor to make the motor go forward or reverse, depending on the entered value.
the user enters a number and then presses a button to activate the movement. I am setting a bit in the HMI and using the PLC to reset the bit when the encoder drops above or below depending on the motion.
the issue is that when i turn the encoder by hand fast, the reset bit is being activated approximately 1 revolution before the targeted value. I can hit the go button again and the coil will activate until the correct value is reached.
If i turn slowly, the coil will stay on until the desired value is reached.
This issue is pretty consistent and turning by hand is not the same speed as a motor can.
I am using Somachine basicfor the PLC and Vijeo Designer for the HMI.
I am doing this for a learning experience, (i am a millwright by trade) but after several days of testing i am lost. Any help would be greatly appreciated.
Thanks In advance.
Rob
p.S. I have a 100ppr encoder and it does the same thing as well.
I have a Modicon TM221C16T hooked up to a Dynapar ha625 2000ppr encoder. It is sending the information to a Magelis HMI.
I am setting it up so the user can enter a value in the hmi and then the plc will close a contactor to make the motor go forward or reverse, depending on the entered value.
the user enters a number and then presses a button to activate the movement. I am setting a bit in the HMI and using the PLC to reset the bit when the encoder drops above or below depending on the motion.
the issue is that when i turn the encoder by hand fast, the reset bit is being activated approximately 1 revolution before the targeted value. I can hit the go button again and the coil will activate until the correct value is reached.
If i turn slowly, the coil will stay on until the desired value is reached.
This issue is pretty consistent and turning by hand is not the same speed as a motor can.
I am using Somachine basicfor the PLC and Vijeo Designer for the HMI.
I am doing this for a learning experience, (i am a millwright by trade) but after several days of testing i am lost. Any help would be greatly appreciated.
Thanks In advance.
Rob
p.S. I have a 100ppr encoder and it does the same thing as well.