I have a Micrologix 1761-L16AWA with a very simple program
that sequences 3 vacuum pump motors, each on for 900 seconds.
(see attached)
What I would like to do is have 3 key switches, one for each
motor, so that when a motor needs to be taken out of service
one could turn the switch for that motor and the sequencer
would only cycle between the remaining 2 motors.
With the program now, a motor is shut off for service, the vacuum
drops to a lower range when the sequencer is on that step. In the past I have had to edit the program by taking out 1 step of the sequencer, the rung that has the output for the motor that is off for service and 1 of the vacuum switch inputs. Trying to make my life easier.
I would appreciate any help you can give me in creating a new and improved program.
that sequences 3 vacuum pump motors, each on for 900 seconds.
(see attached)
What I would like to do is have 3 key switches, one for each
motor, so that when a motor needs to be taken out of service
one could turn the switch for that motor and the sequencer
would only cycle between the remaining 2 motors.
With the program now, a motor is shut off for service, the vacuum
drops to a lower range when the sequencer is on that step. In the past I have had to edit the program by taking out 1 step of the sequencer, the rung that has the output for the motor that is off for service and 1 of the vacuum switch inputs. Trying to make my life easier.
I would appreciate any help you can give me in creating a new and improved program.