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electrical:solar:charge_controller_setpoints

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electrical:solar:charge_controller_setpoints [2017/10/26 21:18]
frater_secessus created
electrical:solar:charge_controller_setpoints [2017/10/26 21:47]
frater_secessus [load setpoints]
Line 1: Line 1:
 ====== Solar charge controller setpoints ====== ====== Solar charge controller setpoints ======
 +
 +Controller behavior is guided by //setpoints//, or values stored internally.  On simpler controllers the setpoints may not be adjustable.  On others there is a range of values that can be stored.
 +
 +===== charging setpoints =====
 +
 +  * **Float voltage (Vfloat)** - the voltage the battery bank is held at during [[electrical:12v:charging#float_stage|Float]].  Common setpoint in most configurable controllers.
 +  * **Absorption voltage (Vabs)** - the voltage the battery bank is held at during [[electrical:12v:charging#absorption_stage|Absorption]].  Common.
 +  * **Absorption duration** - the amount of time Vabs will be held until dropping to Vfloat.  Somewhat common.
 +  * **Absorption termination** - the amount of current (or percentage of capacity) Absorption must fall to before dropping to Vfloat.  Not common.
 +  * **Absorption restart** - voltage (or duration) at which Absorption stage after failing to maintain Vfloat
 +
 +
 +===== load setpoints =====
 +Only present on controllers with LOAD outputs.
 +
 +  * **Low voltage disconnect (Vlvd)** - voltage at which the controller turns off loads to prevent excessive battery discharge.  Typically something like 12.1v (the voltage at 50% [[electrical:depth_of_discharge|depth of discharge]]).  Heavier loads that cause voltage sag may require setting a lower Vlvd so the voltage pops back up to 12.1v((or whatever)) when the load is removed.
 +  * **Low voltage reconnect (Vlvr)** - the setpoint at which the load is turned back on after recovering from Vlvd cutoff.  Vlvr > Vlvd.  If Vlvr is set too close to Vlvd the loads may continually toggle on/off.
 +
 +
 +===== other setpoints =====
 +FIXME
 +
 +
 +
  
electrical/solar/charge_controller_setpoints.txt ยท Last modified: 2023/07/21 23:15 by frater_secessus