Page 1 of 1

SAR V3 equalization

PostPosted: Thu Jan 21, 2016 6:30 am
by sargo
good morning:

I am trying to configure the equalization values for my FullRiver AGM batteries. after reading the manual several times I still have a few questions:

Question 1: Does the setting of the Battery Type Selection dip-switches set the equalization voltage?
Question 2: How do I set the applied current using R12? How do I get feedback that I have set this correctly? I have 440 Ah capacity.
Question 3: to activate equalization do you recommend adding a switch on the EQL input, or a switch across the two pins of P1?
Question 4: If I choose to use the EQL input do I jump the P1 pins?
Question 5: If i apply a switch across the two pins of P1 do I leave this switch on throughout the equalization period?
Question 6: finally: the last sentence in the equalization section says: "Equalization will terminate automatically whenever the ending voltage or time is achieved." Are the "ending voltage" and "time" pre-configured? Will this automatic termination occur if the pins at P1 are jumped together?

thanks very much for your help.
Sargo

Re: SAR V3 equalization

PostPosted: Thu Jan 21, 2016 6:16 pm
by Coulomb
1) Dip switches select the appropriate regimen.

2) Measure battery current as the adjustment is made.

3) EQL, (optional) ...an input that activates either the regulator's equalization mode or a second duty-cycle current limit, depending on the internal jumper P1. This input is activated when battery voltage is applied to EQL. The duty-cycle current limit is adjusted with potentiometer R12 (Refer to Figure 2). Refer to the Equalization section for the operating description.

4) The EQL input is used for a second current limit whenever the input signal is activated. To enter the actual equalization mode, the two pins of P1 must be first shorted with a jumper terminal or a switch connected to the two pins, refer to Figure 2. This changes the mode of the EQL input signal to regulate at the equalization voltage set-points as well as current limit. Then the EQL input should be momentarily activated for at least two seconds and then released. A second momentary action will terminate the equalization process. Equalization will terminate automatically whenever the ending voltage or time is achieved.

5) Yes

6) See 1) and yes.

Re: SAR V3 equalization

PostPosted: Fri Jan 22, 2016 1:39 pm
by sargo
Thank you for your response. I think I am getting closer...

One more clarifying question: <your answer from the manual>
4) The EQL input is used for a second current limit whenever the input signal is activated. To enter the actual equalization mode, the two pins of P1 must be first shorted with a jumper terminal or a switch connected to the two pins, refer to Figure 2. This changes the mode of the EQL input signal to regulate at the equalization voltage set-points as well as current limit. Then the EQL input should be momentarily activated for at least two seconds and then released. A second momentary action will terminate the equalization process. Equalization will terminate automatically whenever the ending voltage or time is achieved

So are you saying: that I need both the two pins of P1 jumped, AND a method to apply battery voltage to EQL to enable equalization?

again thanks

Re: SAR V3 equalization

PostPosted: Fri Jan 22, 2016 2:55 pm
by Coulomb
Yes,

Without the P1 jumper than the EQL input is current limit only.

Re: SAR V3 equalization

PostPosted: Sun Jan 24, 2016 8:34 am
by sargo
Thanks very much.

I'll get a momentary switch next time i'm in the states and wire it up.

Again thanks for your quick response.

John
s/v Sargo