search for: fullvolt

I have an old (1997) Best Ferrups (model FE18KVA) that I am trying to monitor for the first time, but all the Best drivers fail to communicate with it. In ups_sync() in bestuferrups.c and bestfcom.c, the "time" command is sent and a one-line response is read. However, on my UPS, that command returns the current time and then prompts for a new time setting. I worked around that by just

...ted from upsc never gets above 69.9%. I believe there is a mistake in the driver. The battery percentage is calculated based on the High Battery Alarm Setpoint (59.6V) instead of the Ideal Voltage which is about 54V (4 batteries x 13.6V). I examined the source code and found that the variable fc.fullvolts is the result of querying parameter 67 from the UPS. This parameter is defined per Ferrups Tip 503 as: "The battery voltage at which the UPS sound a High Battery alarm" A better value to use in determining the percent battery voltage would be fc.idealbvolts which is calculated in the d...