Plc- allen bradley 5/05
Inverter- Yaskawa j7
motor- baldor 1hp 3450rpm 56c
Application
I am needing to stop sergers in the needle up position. The sergers in the run mode are turning up to 3200 rpm max. I was planning on notching the pulley and using a high freuency prox The sergers are needle up for about 15 degrees of the overall rotation.
As the machine ramps down for a normal stop the plc will make sure that a prox signal is being picked up. If the prox is picking up the proper readings.(prox not broke) then the machine will start the needle up prcedure. Once stopped the machine will revese (to prevent missing ends or broken parts) until the prox is made. The machine will run at a much lower rpm. The time for a full rotation at this speed will also be checked and time out the sequence if a full rotation was made and for some reason the prox was not found. This machine has light curtains so there will be no operator interfence.
The machine has 2 sergers so the program will have to be duplicated for both sides.
I might be looking over a much simpler way and this forum has always shown alot of support to people that are learning
Inverter- Yaskawa j7
motor- baldor 1hp 3450rpm 56c
Application
I am needing to stop sergers in the needle up position. The sergers in the run mode are turning up to 3200 rpm max. I was planning on notching the pulley and using a high freuency prox The sergers are needle up for about 15 degrees of the overall rotation.
As the machine ramps down for a normal stop the plc will make sure that a prox signal is being picked up. If the prox is picking up the proper readings.(prox not broke) then the machine will start the needle up prcedure. Once stopped the machine will revese (to prevent missing ends or broken parts) until the prox is made. The machine will run at a much lower rpm. The time for a full rotation at this speed will also be checked and time out the sequence if a full rotation was made and for some reason the prox was not found. This machine has light curtains so there will be no operator interfence.
The machine has 2 sergers so the program will have to be duplicated for both sides.
I might be looking over a much simpler way and this forum has always shown alot of support to people that are learning
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