adccommunitymod (AutomationDirect) asked a question.
GS2 software glitch
Created Date: February 03,2018
Created By: jjkk
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I have several GS2-10PS running exhaust fans in hog barn; needs to run 24/7; speed controlled by analog input. On several occasions in the last few years when there are power fluctuations the drive goes to 0 output, and I have to disconnect and reconnect the DI1 to restart the drive. P6.02=2 P6.30=01 What am I missing?
Created Date: February 03,2018
Created by: jjkk
I have several GS2-10PS running exhaust fans in hog barn; needs to run 24/7; speed controlled by analog input. On several occasions in the last few years when there are power fluctuations the drive goes to 0 output, and I have to disconnect and reconnect the DI1 to restart the drive. P6.02=2 P6.30=01 What am I missing?
Created Date: February 04,2018
Created by: Ridgeline Mach
How far away (in feet) is the drive from the motor? You may need a line reactor.
Created Date: February 04,2018
Created by: jjkk
100 to 400 feet and not using line reactors; Barn was built in 1997 initially used all (16) Toshiba VFS-7 drives, no problems. In 2014 we started replacing them with the GS2's
Normally we have no power fluctuations except during thunderstorms when we see those issues. Wondering if anyone out there has experienced this? Any input would be appreciated
Created Date: February 04,2018
Created by: kewakl
What is the value of P3.01
Created Date: February 04,2018
Created by: kewakl
How far away (in feet) is the drive from the motor? You may need a line reactor.
The manual specifies that if multiple drives attached to the same LINE, each drive should have its own input reactor to eliminate crosstalk between drives and to provide isolation for each drive to its specific load. GS2M Appendix A page 6
The manual specifies that if the motor wiring exceeds 75 feet, use an output reactor. GS2M Chapter 2 page 12
jjkk , have you had this 'failure to restart ' since installing the first GS2, or has it begun happening as you install more GS2's?
Created Date: February 04,2018
Created by: jjkk
P3.01 is set to default (0)
I remember trying out a single GS1 by itself in about 2006 or 2007 and had it happen; I just assumed it was a software glitch in that series and went with the GS2's later on.
A solution so the issue would to set up a small relay for every drive and break DI1/DCM every 5 minutes or so, which is what I am planning to do, but I thought I'd post it on the forum
first.
Created Date: February 04,2018
Created by: Ridgeline Mach
Well, you either install line reactors, or wire relays, It's your choice. I just think the line reactors is a simpler (non-mechanical; the relay can eventually fail) solution.
Created Date: February 04,2018
Created by: Cow
Well, you either install line reactors, or wire relays, It's your choice. I just think the line reactors is a simpler (non-mechanical; the relay can eventually fail) solution.
Also, line reactors provide some incoming protection for the drives, that is another reason why most drive manufacturers recommend or require them.
Created Date: February 05,2018
Created by: jjkk
Thank you for your input.
Created Date: February 05,2018
Created by: mwdkmpr
Line and Load reactors are never a bad idea, but I don't think they will solve the problem that you are having.
Does the drive show an error when it stops? I had a similar problem with a drive when the power switched to a generator for it's weekly test. I solved the problem by wiring DPDT relay to the NO output of one of the multi-function outputs. The output was set to turn on when the drive was faulted. DI1 was wired in series with a NC contact in the relay. One of the multi-function inputs was wired in series with a NO contact in the relay. This input was set to reset a fault. So when the drive faulted it would pull the relay in and it would break the run command and reset the drive.