Goss Metroliner Press Retrofit

We were maintaining this old drive system originally designed and built for Goss by Fincor. These controls were on a Goss Metroliner 9 unit press. Below is a picture of a "slave" unit. Due to the age of this system and its particular quirks, it had become a maintenance nightmare for the Times.

Old Drive System

Here is a picture of the "master" cabinet before we upgraded the system. This cabinet was gutted except for the disconnects and the control transformer mounted below out of sight in this picture. Notice the bundles of wire exiting top right. There was another bundle exiting top left. All of these wires were replaced with one small communications cable and three wires for 115 Volt control power to each unit.

Master Cabinet Before Upgrade

Here is an image of one of the "slave" units after the retrofit. Notice the PLC expansion base mounted in the bottom. On the bottom sidewall is a communications module allowing the slave unit to communicate with the master. Load signals and other required data were communicated back and forth to the drive via this comms link. The "green" drive is a Control Techniques Mentor 2 drive but we can use the drive that you desire for your retrofit. We did this for about 40% of the price a major drives company known in the press industry quoted. (Yes, we were too low but we made money!) Also, we did not shut down the press to do this retrofit!! (The "other guys" wanted to shut the press down for two weeks!! Sheeesh! Could you live with that?) That's right! The Times never missed a production run and never had to send any work out while we did this retrofit! Try to get that from the big boys! Finally, we included two programs loaded into the maintenance computer which allow us to come on line and assist with diagnosis and troubleshooting of press problems from our office.

Slave Units After Retrofit

No pics are available for the "master" at this time. However, imagine this cabinet doubled in width and you have a pretty good idea! Notice exiting the top of the cabinet you do NOT see a large bundle of wires. If you look closely, you can see a small communications cable and three control power wires.