Low voltage disconnect at 21v on a 24V system is pretty much standard.
That's 1.75 volts per cell and is considered by most SLA manufacturers
to be a non-bad/recoverable depth of discharge. And I agree, I consider
a 12v battery at 10.5 volts to be dead.
You could always call/email Mean Well and ask if the LVD cutoff voltage
can be adjusted.
On 5/10/2017 10:27 PM, David Coudron wrote:
We have received our first batch of these and have a prototype cabinet
set up. We have the SDR-240-24 PSU with the Meanwell DR-UPS40 hooked
up in the following block diagram. We have a Netonix Ws-12-250-DC
switch as load with a TPDIN-Monitor-Web2 in the middle monitoring
everything. When testing AC power outage, we are seeing the DR-UPS40
go to Bat Fail at about 21V and the whole thing shuts down killing
power to the Netonix. Since the Netonix can go quite a bit lower on
the voltage, we�d like to see the DR-UPS40 let the batteries go a
little longer. Is this the same behavior others see? Can the
DR-UPS40 be adjusted to allow the voltage to go lower, or should the
DR-UPS40 be taken out of the circuit so that when it shuts off the
Netonix still runs since it will go lower on voltage and shut off by
itself anyway?
Thanks,
*David Coudron*
[email protected]
<mailto:[email protected]> |*Mobile: *612-991-7474
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