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Drives for Web Handling

Blogmaster: Clarence Klassen

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Upgrades

12

Running without tension

Posted by Clarence Klassen on December 12, 2011
Running without tension
This week I was called in to a paper mill to look at a problem following a drive upgrade. This was an old machine that had one section running in tension control for about 40 years. The old drive used a dc generator. The new drive was a previously enjoyed digital dc drive. After the upgrade, the ...

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Posted in: Tension Measurement and Control, Upgrades
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31

Firmware Updates

Posted by Clarence Klassen on January 31, 2011
Stop me if you have heard this. The good news about firmware is that updates can be loaded on-site to resolve problems. The terrible news about firmware is that updates must be loaded on-site to resolve problems! Tuesday is Update Tuesday. We are ready to update all drive firmware to resolve comp...

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Posted in: Drives, Upgrades
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24

Firmware - Definition

Posted by Clarence Klassen on January 24, 2011
A typical drive system is chock full of software. The drive tech has a notebook computer with drive configuration software, PLC software, communications software. This software is similar to any other software for a notebook computer. A license has to be purchased and we expect updates at least ever...

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Posted in: Upgrades, Definitions
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20

Drive Upgrade Startup

Posted by Clarence Klassen on December 20, 2010
Drive Upgrade Startup
In a couple earlier blogs I spoke of the effort in upgrading and wire checking a large dc variable speed drive with modern control electronics. We have just finished the commissioning. As expected, the new drive control electronics performs extremely well. Auto-tune did not work for the very old mo...

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Posted in: Upgrades
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13

Drive Upgrade Wire Checking

Posted by Clarence Klassen on December 13, 2010
Drive Upgrade Wire Checking
In a previous blog I spoke of the effort in upgrading a large dc variable speed drive with modern control electronics. We have just finished the wire checkout. Same old story of wiring upgrades. The list of wires to be disconnected fit on 4 sheets. The new wiring schedule fit on 4 tabloid sized she...

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11

Drive Upgrades

Posted by Clarence Klassen on July 11, 2010
This week I am involved in upgrading a 30 year old analog DC drive to a Digital DC drive. This upgrade is often given a name like digital front end. It provides new up to date electronics, but keep existing contactors, bus work, power semiconductors, cabling and motors. The only possible reason for...

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Posted in: Drives, Upgrades
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Blogmaster

Clarence Klassen photo

Clarence Klassen

President. Designated Consulting Engineer with Professional Engineers Ontario (PEO). KlassENgineering was incorporated in 1999. Clarence applies 31 years in the Pulp and Paper industry to solving problems with drives for web handling. He has 10 years experience as a drives engineer with GE Canada and 10 years experience with Opcode Systems Inc., a PLC and Drives Systems Integrator. Much of Clarence's experience was gained in onsite installation of new equipment and troubleshooting of existing equipment. KlassENgineering performs Pre-Start Health and Safety Reviews as required by the Ontario Ministry of Labour.