With the Traco setup, the BCM controls the power supply voltage to be what
is needed to charge the batteries. The loads get that same voltage, so the
output will be 27 or 28 volts not 24.
Is there a possibility the battery remote temperature probe is not connected
correctly or is bad? I don't know what happens if that is open. Some
chargers will assume 27*C if the probe is missing, I don't know what Traco
does.
-----Original Message-----
From: Bill Prince
Sent: Wednesday, April 08, 2015 5:02 PM
To: [email protected]
Subject: Re: [AFMUG] Low Voltage Disconnect
I've never used this setup, but with the chargers/controllers I've used,
the output of the power supply has to be greater than 24V. In fact,
doesn't the output of the power supply have to be at least 28 or 28.5
volts? This would allow the battery controller to modulate the output to
the batteries, whether it be bulk, absorption, or float?
bp
<part15sbs{at}gmail{dot}com>
On 4/8/2015 1:27 PM, Christopher Tyler wrote:
Attached is a picture of the setup as it is now. 24 supply and 24v loads,
everything feeds through the Meanwell regulator.
I followed the instructions from Traco, but as you can see the battery is
currently at about 23v and that is what the Traco power supply is
outputting. The instructions say to turn the power supply all the way down
and to let the BCM control the output. It's all set up, jumper is in
position 1, the feedback cable is connected between the PS and the BCM but
the BCM doesn't appear to be telling the power supply to do anything
except turn on.
Anyone with some experience with Traco care to tell me what I'm doing
wrong. It's worked like this since day one, the BCM doesn't appear to be
doing anything regardless of the battery voltage.
