- Aalborg mission boiler manual serial numbers#
- Aalborg mission boiler manual install#
- Aalborg mission boiler manual manual#
- Aalborg mission boiler manual Pc#
Aalborg mission boiler manual Pc#
If i don't succeed with this blank EEPROM, can i use back the old one with previous data unchanged? What would i expect upon restart with this blank new EEPROM?Ī brief view of this controller it is a slave connected to a PC workstation RS-485 comm as well connected to master controller. Though it takes time, I guess i am going to manually keying-in the configuration data to this blank EEPROM.
Aalborg mission boiler manual install#
As you had suggested, i am planning to install and mount it to the cpu print. I got same EEPROM from new spare attach on CPU print. I have the configuration default setting from makers compiled in the instruction manual. the keypad does not have special test circuitry, then we can tentatively assume the keypad is okay, and the next thing to suspect and test is the i/o relay 'print', which is probably fused (check the fuse(s)!) or the connection from the CPU 'print' to the i/o relay 'print'. If, e.g., the keypad communicates only with the CPU, over the same conductors all the time, i.e. I.e., when you 'test' the i/o points from the keypad, does that use a different circuit in the keypad, or anywhere else, than actually exercising the i/o points for real? So the first question that should be answered is "What's different?".
You said in your first message that you can individually control the i/o points, or simulations of the i/o points, from the keypad. I think that the interface between IDC connectors and the cable conductors does eventually degrade, and the unit in question is not new, so it might be worthwhile to try replacing the keypad cable, if you can't easily verify continuity from end to end as installed. It appears that the keypad connector is a two-row pin header without latching means, suggesting that the keypad is connected by a ribbon cable with IDC connectors. I personally would prefer to verify each module/link is in a linear fashion starting at the keypad, or better, at the power source for the keypad. Note that going from "keypad doesn't work" to "EEPROM worn out" or "EPROM funky" is kind of a long leap. I'm thinking it's got to be pretty cheap to replace the EEPROM, provided that you're prepared to do a cold start from scratch with a blank EEPROM I don't know how complicated that is, or whether your records will be adequate to fill in the needed data that isn't automatically filled in. Pembroke Pines, FL, USA RE: Eprom problem powerjunx (Electrical) Ribbon cables don't last forever, especially if they're flexed, so a close visual inspection and continuity check would be a good idea.
Aalborg mission boiler manual manual#
The drawn illustrations in the manual I found suggest that the keypad is joined to the CPU 'print' by a ribbon cable, and probably a cheap connector. I could not find a photograph of the interior. I think EEPROMs have a limited life, so replacing the EEPROM with a blank one and going through the initial setup might get you up and running. There is also a battery, which may need changing. I.e., once set up, it should be able to run with the EPROMs removed, but the EEPROM is essential.
Aalborg mission boiler manual serial numbers#
It suggests that the EPROMs each contain the base program in an assortment of languages, and that the CPU runs from the EEPROM, with local/language-appropriate copy of one of the programs in one of the EPROMs, and also stores local data like serial numbers and maybe setpoints in the EEPROM. I found a York document 1021.pdf, internally titled RE: Eprom problem MikeHalloran (Mechanical) 22 Nov 13 15:08 Can i conclude this EPROM has impending trouble? and it's time to install new one or upgraded EProm? I already replaced PCB relay cards and cPU card yet problem still persist.
However, when a command keypad input the controller never responded. When i simulate from diagnostic function for activating outputs it's working fine. Keith good point, EPROM forgetfulness is what i am trying to dig out. i suspect this was upgraded 4 times during its lifespan, according to spare old EPROM. but i had notice lots of spare EPROMs having lower version on scrap box. According to data sheet, such EPROM has 2MB capacity and the controller has PID loops. Good point for such device you mention however i am solely dependent on operational observation of the boiler status and diagnostic functions. Mike, it is a unisab II controller for Aalborg Marine Boiler.