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avatar: RoboWill
RoboWill
27 posts
Replied to RoboWill's post on February 9th, 2018

My avanti J25 is showing a D14 error. It worked with no error before. It blew one of our weak breakers and since then the D14 error has persisted. What is a D 14 error? Thank you for your help!

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 9th, 2018

A D14 diagnostic is a communications watchdog time out error between the 2 CPU's in your centrifuge.  Normally a restart of the centrifuge takes care of the issue.  It may take a cycling of the power too but if neither one of those takes care of the problem then you may have a circuit board failure and all of the circuit boards use surface mount technology on multi layer circuit boards which makes component replacement impossible unless you have the correct tools.  In fact, Beckman Coulter never provided any of their field engineers eith those kind of tools so we just replaced parts in order to get them back on line.

What do you mean that it blew one of your "weak" breakers?  The wall breaker should be a 30A breaker.  Anything less can and will be problematic.  What is your AC line voltage going to the centrifuge?  If something has changed there then it may require retapping the tansformer for the correct voltages.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 9th, 2018

There was a 25 amp breaker when the centrifuge tripped it. We replaced it with a 30 amp breaker. I'm running on 240V AC. Restarting has not solved the problem so I must have a cpu board issue.

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 9th, 2018

Are the CPUs the boards behind the display? Theres a large circuit board with the vacuum florecent display in the middle, and then two smaller boards with many logic chips behind that. Are the two cpus on the smaller boards? Is that where I would look so swap out parts? THank you very much for all your help!

Will

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 9th, 2018

OK, you did not tell me that you had a J25I series Avanti centrifuge.  In that case you have 3 CPU's.  One of the CPU's is on the large board in the console, one controls the Display, and the other is down in the swing out chassis on the small circuit board.  That is the one that would be my first best guess as being the problem IF it is a board proble.  My first question is has there been any changes to the supply side for the centrifuge.  Is the line out actually 240VAC?  There is a wiring block that has different taps based upon what the line voltage is.  If that is not set properly it can cause problems with how the centrifuge performs or does not as the case may be.  What is the +5 volts reading up at the CPU board in the console which is the point furthest away from the power supply?  How old is your centrifuge?  That can be determined from the serial number.  There were changes made to the memory chips for the board down in the chassis that actually required replacing of the board so that the new chips would fit in the sockets.  Please get back to me about the questions I asked.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 13th, 2018

I have 240 between my white and black mains wires coming from the power switch to the two leftmost terminals on the block. The large board in the console tested 5.2 V at the 5V test lead. My serial number is JJY96C30.

 

Will

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 13th, 2018

Well, you certainly have one of the older J25's around with that serial number as 1996 was the first full year of manufacturing for the J25's.  The power supply voltage looks good but I am wondering what the service history is for your centrifuge.  Have you ever had regular Beckman Coulter service on it because there have been many and significant updates performed on ALL Avanti J series centrifuges over the years.  What is the voltage reading where the ORANGE and PURPLE wires are connected on the terminal block.  Also, the BLACK wire should be on terminal 5 where the YELLOW wire is located.  Then you just have to insure that all of the ORANGE and the PURPLE wire is located on the terminal closest to 230VAC. 

This will only make sure that the main power is correctly set up and I am really leaning towards you having an issue with the SR Control board, the smaller of the two boards down in the swing out chassis.  In fact, back in May of 1997, there was a change to the board to specifically prevent the problem you are seeing which is caused by noise on one line that is not really used and can act like an antenna because it feeds directly into the CPU on that board.  Prior to replacing the board, there was another service memo that recommended cutting off Pin 12 from J1 on the board.  This is the connector at the top of the board with Pin 1 on the upper right side of the connector.  I would recommend trying to remove Pin 12 first and see what happens.  One other possibility is to cut the trace between Pin 12 and the CPU.  If you see this last item then the update has already been done and then you may still be looking at a problem with the SR Control board.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 14th, 2018

The orange and purple wires are at 230 V. Moving the black wire on the block solved the D14 error. Thank you so much! Two new problems have presented themselves. When it spins up I get an R1 rotor ID error regardless of what rotor I set in the menu. The foot pedal door open also does not function. The solenoid doesnt seem to be pushing the release cord into the hole that allows it to lower.

Thank you,

Will

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 14th, 2018

Will, Did you reinitialize the centrifuge after moving the wire?  This is one of those cases where just entering values doesn't cut it.  You need to run the actual windage and inertia calibrations.  That should take care of your issue as the error that you are seeing is generated when the centrifuge does a dynamic rotor check as opposed to a rotor magnet check.  It sounds like you are in timer lockout sitiuation as to the foot pedal.  To clear the door lock timer press [ENTER] 822.  At that point you should hear the door latch interlock release.  Press[CE] to return to normal operations.  The other possibility if that doesn't work is that the foot pedal cable has jumped off of its pulley near the door latch interlock.  This was actually a common problem as the centrifuges got older as sometimes the pulley screw itself could become loose.  Check those things out and then get back to me.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 14th, 2018

Hi Don, the calibration did indeed allow the rotor ID to work. The foot pedal cord was indeed off the track of the pulley. After applying your suggestions the centrifuge is up and running. Thank you. I am grateful for all your help.

 

Will

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 14th, 2018

Will, Pleased to hear that you are back on line with that one.  I was in the original training class for the AvantiJ series centrifuges and particiapated in product improvement groups so I had a lot of experience with them.  I also had about 40 of them that I had to service so I pretty much saw about all of the problems imaginable.  The foot pedal issue was one of the biggies that I bitched about the most because it would not have taken much to create a permanent fis.  Unfortunately, the bean counters thought otherwise.  Feel free to contact me with issues on Beckman centrifuges, spectrophotometers and LS counters.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 14th, 2018

Hi Don, as I went to run the centrifuge for the fourth or fifth time since it started working, I encountered a D4 error. I tried reinitializing but I got a D2 error during calibration.

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 14th, 2018

Will, A D4 is an "OVERCURRENT" diagnostic and the D2 is a "DRIVE STALLED" diagnostic and I can say that I NEVER saw a or heard of anyone ever getting a D2 diagnostic before.  According to the service memos, a D2 could be caused by loose allen screws on the drive hub and there was also an update to be performed on the SR Controller board that required cutting traces and installing resistors around the cut traces.  Since I have no idea of the service history of your centrifuge I have no idea if this update was ever performed as your serial number predates the service memo by several years.  In fact, there are a great number of service updates to all of the boards that took place over the years.  Any help you can give me on the history may help solve your problem.

Don

avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 14th, 2018

All I know about the service history of this centrifuge is that it was serivced in 2001 as that is the date next to the last calibrations. Which traces were to be cut on the SR controller board? Would pictures of the boards help? 

 

Will

avatar: dpkleessr
dpkleessr
961 posts
Replied to RoboWill's post on February 14th, 2018
Will, I will try to scan or take pictures of the memo and then post it but that won't happen until tomorrow. Were there any notes left inside of the urge indicating what was done and was it Beckman that serviced it? Don
avatar: RoboWill
RoboWill
27 posts
Replied to dpkleessr's post on February 15th, 2018

Don, there is only a single sticker with original calibration values and a second set of values after one servicing. I don't know if it was serviced by beckman or someone else. 

avatar: RoboWill
RoboWill
27 posts
Replied to RoboWill's post on February 15th, 2018

I have extras of the small board on the swinging door. Their version numbers end in 4, 5, and 6 for each of the three boards I have. Could switchiung those help?