$CPF:n - Change FLOAT parameters in CPE user entry n (n = 7 or 8) This command (with its parameters) will cause the FLOAT portion of a Charge Profile Entry to be updated. Parameters must be in the following order and include comma “,” separators where indicated. Extra spaces before and/or after the parameters are allowed.
$CPF:n
<VBat Set Point>, <Limit Amps>, <Exit Duration>, <Revert Amps>, <Revert Amp-
hours>, <Revert Volts>, <Revert SOC>
n: (7 8) ‘ n’ is the Charge Profile Table Entry that will be modified. Use range 7 to 8.
VBat Set Point: <FLOATING POINT NUMBER (0.0 16.5) > Voltage the Regulator will use during FLOAT phase. This value is a floating-point number and entered for a normalized 12v system. Setting this value to 0.0v will cause all charging to stop during ‘float’ mode. (See note: Defining Charging Voltages and Amps) <WHOLE NUMBER (-1 50)> While in FLOAT phase delivered Amps will be monitored and regulated to ‘LimitAmps’ . Setting ‘LimitAmps’ = -1 will disable this feature and only ‘ VBatSetPoint’ will be regulated. Limit Amps: Exit Duration: <WHOLE NUMBER (0 30000 (500 hours)) > After entering FLOAT phase, a timer will be started. After ‘ ExitDuration’ minutes have expired FLOAT mode will exit and the regulator will move to POST- FLOAT mode. Setting ‘ ExitDuration’ = 0 will cause the regulator to remain in FLOAT mode unless triggered by another exit criteria. Revert Amps: <WHOLE NUMBER (-300 0)> While in FLOAT mode, if ‘RevertAmps’ are exceeded it is an indication that a large load has been placed on the battery and current is being withdrawn, the regulator will re- start a charge cycle, looping back to BULK mode. Setting ‘RevertAmps’ = 0 will disable this feature. RevertAmps is most useful in the case where the amp shunt is placed on the battery, as when the amp draw from the battery exceeds RevertAmps , it is a clear indication energy is being drawn from the battery. In this case, set RevertAmps equal to the number of amps being drawn from the battery that should be used to trigger a revert to bulk. In cases where the amp shunt is installed on the alternator, this can also be of use by sizing RevertAmps to a value slightly above expected house load values. However, perhaps a better indication is to set this to =0, and use RevertVolts. Revert Amps-hours: <WHOLE NUMBER (-250 0)> After entering FLOAT mode if the accumulated number of Amp Hours removed from the battery exceeded ‘RevertAmp - hours’ the regulator will re-start a charge cycle, looping back to BULK mode. Setting ‘RevertAmp - hours’ = 0 will disable this feature
This is another way to indicate the need to restart charging of the battery, and perhaps a better approach than raw RevertAmps, but it is only usable if the amp shunt is placed on the battery.
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