If you are using a DC UPS, there is no switching required on your part.
The load, batteries and AC line in are all separate from each other. If
AC line voltage is active, power comes from there. If AC line voltage is
not active, then power comes from the batteries. If the controller has
LVD, it will maintain until the batteries get to the LVD. If it doesn't
have LVD, then the controller will maintain until the batteries are
depleted.
If you are just using a smart charger, you hook the load directly to the
batteries, and hang tough. No switching required here either.
bp
<part15sbs{at}gmail{dot}com>
On 5/20/2017 11:16 AM, Matt wrote:
What is everyone using for switching from AC to battery backup at sites?
I normally have our other guy take care of that part. But we normally
have a DIN mount 24V power supply, a DIN mount packetflux site monitor
that monitors power supply output and battery voltage and some DIN
mount module that does charging and switching between the two. Also
have a 24V to 48V converter to power our 450i etc stuff.
Monitor the site monitor with SNMP and start emailing alarms if power
supply voltage drops. Also graph power supply and battery voltage
with MRTG.
Curious what others are using here?
