Compatibility of UPS System and Low Watt Processors that Activate Solenoids
Dear Sir or Madam,
My church's bells are rung by three separate Rabbit 2000 Embedded Processors. The combined wattage output of the processors, when not activating solenoids to ring the bells, is only six watts. Two of the bells are rung with a single solenoid which, at activation, draws a peak current of 250 watts. The big bell uses two solenoids which has a peak current of 500 watts. The activation periods for the solenoids is between 60 and 90 milliseconds. The only situation in which more than one bell is rung at the same time is when regular AC current is available and then manually by pushing a button. Lately, our town has had a slew of power outages. During the last outage, one of the processor's flash drives was corrupted (i.e. power surges, other current irregularities). We will have the system designer reload the program and plan on purchasing a good surge protector designed for electronics. As a result of the outages, we are considering the purchase of an UPS that is rated at 1500 VA and 900 watts. THE BIG QUESTION: Will a traditional UPS system recognize the peak currents (i.e when a bell rings) as an inductive load and deem it as an overload or will it handle the peaks as they involve a wattage that is well within the wattage specifications? One technician said an inverter type UPS would be more appropriate as it would handle all three bells at the same time. That same tech, however, didn't flat out say the standard UPS wouldn't work. Any input on this matter would be greatly appreciated! Sincerely, Steve