Hello all,
I will be working on a motion project for the first time shortly and am looking for a few tips to get it going.
The machine is a single axis vertical position application. It uses a ballscrew with a directly connected servo to position the load, which rides on linear bearings. The ballscrew has proximity sensors mounted to the case to provide physical up/down limits and a home position.
I am going to use an AD SureServo (with brake) to move the carriage. Unfortunately, the integrated indexing isn't quite advanced enough to provide the proper motion control that we will require, so I will be using a Delta RMC75E to perform this task.
I am assuming that the preferred configuration for this type of system is to put the servo into velocity control mode (it supports position, velocity and torque modes) and have the RMC provide a velocity signal. It seems obvious to me that the home prox switch should be wired to the RMC, but I'm a little fuzzy on the preferred connection of the limit switches. I'm thinking that the RMC would be better able to use the information, but somehow the system would seem safer if the limits were wired directly to the servo drive.
I'm guessing a middle ground is actually the preferred arrangement. The limit switches wired to the RMC as inputs and an output wired from the RMC to the servo as a Drive Enable signal.
Any thoughts? Hopefully someone that has used this combination (or similar) can point me in the right direction.
Brian
I will be working on a motion project for the first time shortly and am looking for a few tips to get it going.
The machine is a single axis vertical position application. It uses a ballscrew with a directly connected servo to position the load, which rides on linear bearings. The ballscrew has proximity sensors mounted to the case to provide physical up/down limits and a home position.
I am going to use an AD SureServo (with brake) to move the carriage. Unfortunately, the integrated indexing isn't quite advanced enough to provide the proper motion control that we will require, so I will be using a Delta RMC75E to perform this task.
I am assuming that the preferred configuration for this type of system is to put the servo into velocity control mode (it supports position, velocity and torque modes) and have the RMC provide a velocity signal. It seems obvious to me that the home prox switch should be wired to the RMC, but I'm a little fuzzy on the preferred connection of the limit switches. I'm thinking that the RMC would be better able to use the information, but somehow the system would seem safer if the limits were wired directly to the servo drive.
I'm guessing a middle ground is actually the preferred arrangement. The limit switches wired to the RMC as inputs and an output wired from the RMC to the servo as a Drive Enable signal.
Any thoughts? Hopefully someone that has used this combination (or similar) can point me in the right direction.
Brian