Hi Troy,
I called the distributor this morning and spoke with Ty. He has a few questions regarding the HOAs and Relay and Base hardware.
Would you mind giving him a call this morning? Here is his direct number.
425-254-7189
Thank you,
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
"From: Troy Collison [mailto:tbc@industrialsystems-inc.com]
Sent: Tuesday, June 23, 2015 2:19 PM
To: Jennifer Cline
Cc: Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
I would order the PLC parts now…. We will supply the other data as soon as possible.
Thanks!
Troy
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Tuesday, June 23, 2015 2:13 PM
To: Troy Collison
Cc: Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
Hi Troy,
Attached is the signed quote to move forward with the scope of the attached signed quote.
Please let me know when to proceed with the following distributor.
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Troy Collison [mailto:tbc@industrialsystems-inc.com]
Sent: Monday, June 22, 2015 4:41 PM
To: Jennifer Cline
Cc: Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
The other distributor we were going to check with for the GE PLC parts is Gexpro in Seattle (Renton)
General Supply & Services, Inc.
1901 Raymond Avenue S.W.
Renton, WA 98055
(425) 254-7100
The relays and terminals we have not identified by part number yet so have not identified a brand or supplier. That will come as we progress with the design.
Thanks,
Troy B. Collison
5835 NE 122nd Avenue, Suite #110
Portland, Oregon 97230
http://www.industrialsystems-inc.com
Phone: 503.262.0367
Cell: 360.957.5039
Fax: 503.262.0371
CCB # 196597 WA #INDUSSI880K9
AK# 1018436
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Monday, June 22, 2015 9:35 AM
To: Troy Collison
Cc: Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
Hi Troy,
Thank you for promptly sending the quote. Please provide contact information for the distributor(s).
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Troy Collison [mailto:tbc@industrialsystems-inc.com]
Sent: Monday, June 22, 2015 8:57 AM
To: Jennifer Cline
Subject: RE: Molalla WWTP - VFD communications
Hi Jennifer. I hope your Monday is going well.
Please see attached revised proposal. I deleted the cost of the materials and added a couple of hours to help the City direct purchase what will be needed.
Best Regards,
Troy B. Collison
5835 NE 122nd Avenue, Suite #110
Portland, Oregon 97230
http://www.industrialsystems-inc.com
Phone: 503.262.0367
Cell: 360.957.5039
Fax: 503.262.0371
CCB # 196597 WA #INDUSSI880K9
AK# 1018436
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Friday, June 19, 2015 4:40 PM
To: Troy Collison
Subject: RE: Molalla WWTP - VFD communications
Hi Troy,
Will you please provide me with an updated quote without the parts? I will be in contact with you next week to move forward with the work.
Regards,
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Troy Collison [mailto:tbc@industrialsystems-inc.com]
Sent: Friday, June 19, 2015 11:02 AM
To: Jennifer Cline
Cc: John Sowards; Mark Lietzke; Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
Hi Jennifer
Please see attached quote.
The analog output modules are currently quoted as 3 to 4 weeks lead time.
We are working to find some in stock at another distributor and I am confident we will be able to.
Thanks you
Troy B. Collison
5835 NE 122nd Avenue, Suite #110
Portland, Oregon 97230
http://www.industrialsystems-inc.com
Phone: 503.262.0367
Cell: 360.957.5039
Fax: 503.262.0371
CCB # 196597 WA #INDUSSI880K9
AK# 1018436
From: Jennifer Cline [mailto:jcline@cityofmolalla.com]
Sent: Thursday, June 18, 2015 5:00 PM
To: Troy Collison
Cc: John Sowards; Mark Lietzke; Jason Clifford; Dan Huff
Subject: RE: Molalla WWTP - VFD communications
Hi Troy,
Will you please provide a quote to move forward with the following:
(1) create a hardwired interconnect diagrams to connect the VFD’s directly to PLC I/O
(2) work with GPEC to install the wiring and modify the VFD and PLC programming to accommodate for the change.
Jason is working hard to keep the TPS running, we would like to expedite this as soon as possible.
Regards,
Jennifer Cline, P.E.
City of Molalla
Public Works Director
O: 503.759.0218
F: 503.829.3676
From: Troy Collison [mailto:tbc@industrialsystems-inc.com]
Sent: Wednesday, June 17, 2015 10:20 AM
To: Jason Clifford
Cc: Jennifer Cline; John Sowards; Mark Lietzke
Subject: Molalla WWTP - VFD communications
Hi Jason,
As discussed on Monday, I wanted to take a few minutes to outline a recurring problem with the VFD’s that operate both the transfer pumps and the effluent pumps at your facility.
All three transfer pumps and both effluent pumps use fuji variable speed drives (VFD’s) that are relabeled as a GE product.
These drives are controlled by the PLC system via GE’s GENIUS communications protocol using a 3rd party communications module manufactured by Horner Electric.
We first started noting the VFD’s faulting due to a problem with the options module (the Horner communication module) several months ago. Mark Lietzke from our office had mentioned to the operators at the WWTP at that time, that an alternative way of controlling the VFD’s may need be implemented but the problem appeared to go away so nothing was done.
The issue has returned however and appears to be here to stay.
We would normally just install a new communication module in a case like this however GE has abandoned the GENIUS protocol and the modules by Horner are no longer available.
We can attempt to locate 2nd hand or secondary market modules if you like us to.
Or, we can crate hardwired interconnect diagrams to connect the VFD’s directly to PLC I/O and then work with your electrician to install the wiring and modify the VFD and PLC programming to accommodate this change.
A third option would be to replace the VFD’s but that will be very expensive and should be discussed internally and budgeted for well in advance.
I would like to know if you agree with our preferred approach to this problem of moving the VFD control off Genius and to hardwired connections. If so, we will prepare the needed schematics and work on the programming while guiding your electrician to install the needed wiring.
Please let us know how you would like to proceed.
Thanks!
Troy B. Collison
5835 NE 122nd Avenue, Suite #110
Portland, Oregon 97230
http://www.industrialsystems-inc.com
Phone: 503.262.0367
Cell: 360.957.5039
Fax: 503.262.0371
CCB # 196597 WA #INDUSSI880K9
AK# 1018436