Created Date: July 30,2014

Created by: daturner

Imho

Does anyone have some background they could share regarding the amount of line noise generated by a Durapulse drive? My foreman is giving me the old because they are so "cheap " they must be very noisy. I am interested to know if someone has info comparing them to other brands. I do see that AD recommends line and load side filtering. Just curious if anyone has had issues themselves, or their utility coming back and requiring filters?

As long as you use the line reactors there shouldn't be an issue. We have installed several AC drives in place of old obsolete DC drives without any problems AS LONG AS we used the line reactors.

We have installed Siemens, Yaskawa, Automation Direct brands, ABB ect...no issues.

Created Date: July 30,2014

Created by: Adisharr

As long as you use the line reactors there shouldn't be an issue. We have installed several AC drives in place of old obsolete DC drives without any problems AS LONG AS we used the line reactors.

We have installed Siemens, Yaskawa, Automation Direct brands, ABB ect...no issues.

Same here, line reactors really make a difference in some applications. On the small drives I almost never use them but around 5-7 HP I throw them in. A good shielded motor cable helps as well.

Created Date: July 30,2014

Created by: daturner

motor cable

Same here, line reactors really make a difference in some applications. On the small drives I almost never use them but around 5-7 HP I throw them in. A good shielded motor cable helps as well.

We always prefer to use a good shielded motor cable BUT if that isn't possible ( usually the cost) then always make sure you run the power to the motor is it's separate conduit all alone. Nothing else except maybe the thermal wires. That will help with noise.

The shielded motor cable is made special for high frequency AC drive applications...or so they say. :)

Created Date: August 01,2014

Created by: Adisharr

We always prefer to use a good shielded motor cable BUT if that isn't possible ( usually the cost) then always make sure you run the power to the motor is it's separate conduit all alone. Nothing else except maybe the thermal wires. That will help with noise.

The shielded motor cable is made special for high frequency AC drive applications...or so they say. :)

You 're right about the cost, I had to buy some flexible IGUS cable for a long gantry application and it was extremely expensive :eek:

Created Date: September 03,2014

Created by: jwbaker3

Most Yaskawa drives for the U.S. Market are made in Illinois or Wisconsin (expect the Mini). Very impressive factories. We setup several 1200 hp regen drives and went for training and run off of the drives before delivery to the customer. I agree ISO 9000/9004 does not mean something is done right, just the same way every time. (At least on the paperwork) So if the part has a flaw they all will have the same flaw. It has nothing to do with improving anything. But it cost a lot of money to get certified, and a lot of time to do the paper work. Has anyone looked at Europe's unemployment and financial problems? Why would we want to be do the same things?????? We try as much as possible to use/sell products made here in the U.S.A. That is one of the reasons we use the Do-More on as many projects as possible. (It is also a great product from a great company)

JW

Created Date: September 10,2014

Created by: ICS

As long as you use the line reactors there shouldn't be an issue.

If have any analog IO in your system, also consider load reactors. We use RTDs with DL06s and GS2 drives. Without, readings are extremely unstable, but smooth out well with load reactors and a little ladder logic dampening. After hours of trying various grounding and shielding combinations, significant signal quality improvement only came with the addition of load reactors.

PS: Also consider load reactors for motor runs longer than 50 '.