Liam Moran
Lifetime Supporting Member
A few days ago I got a callout to a customer that has a Mollers Stretch hooding machine. After the stretch hooder is a weigh check station after which is an Electrically operated door.
There is a switch on the conveyor, (connected to an input on the Stretch Hooder PLC) which is activated by the pallet, so when the switch is activated the PLC pulses an output to open the door.
A time after the switch is clear, along with a few more conditions, the PLC then gives a pulse to close the door.
The Customer reported that the door would neither open or close automatically. When I visited, I found the outputs to open and close the door were solid on.
There is a switch on the conveyor, (connected to an input on the Stretch Hooder PLC) which is activated by the pallet, so when the switch is activated the PLC pulses an output to open the door.
A time after the switch is clear, along with a few more conditions, the PLC then gives a pulse to close the door.
The Customer reported that the door would neither open or close automatically. When I visited, I found the outputs to open and close the door were solid on.