
Originally Posted by
Jon Sr
topcat88, I have changed well over 40 of these batteries in both the HWI and P5 series processors. The P5 Series from factory uses the TADIRAN TL5104. You can also use the SAFT LS14500. Finding the TL5104 with the same leads as the originals in the processor, have proven to be difficult. However both the TL5104 and LS14500 are readily available with AXIAL Leads. If you do not have a backup program for the system be sure and extract one before removing the battery. If neither exist, a new one will have to be written. When replacing the memory battery, good de-soldering practices should be followed along with wearing safety glasses. Important also is the boards are static sensitive and can be damaged beyond repair just by improper handling. You will need a simple boot version of Illuminations v1.49 to load through the RS232 port into the processor first. Then once the processor comes alive, you can set the IP and Gateway and using the ethernet link, follow it with Illumination v1.65 will be faster. I believe this applies to all P5 (Illuminations) processors, however, I have never had an issue with HWI (Interactive) processors which use a different battery. One thing to keep in mind with older electronic equipment in general is that passive components "age out" (i.e. Capacitors, GALs, PALs and Poly-Switches) and create other issues causing a dead or erratic processor that replacing the memory battery will not fix. This seems especially true with the H4P5 processors, since the LV24 panels did not have ventilation and the processor was positioned directly above the plugin 15VDC Power Supply. It would get pretty warm in the panel and especially if the location wasn't air conditioned like a garage. When replacing a memory battery, I also test a number of components and if questionable, replace them as well. Lastly, Lutron's newer QS & QSX systems offer many new state of the art features, equipment integration friendly and electronically designed to handle todays LED technologies. Some LED products will damage older system controls that were designed for incandescent and halogen fixtures. It may be wise to plan ahead for a planned upgrade. Hope this has been useful. Jon Sr.