800.261.3602
Revised 05/19
Kit Contents
SEDM6-40 PVCM40D-MPT
PVCM40D-MPT Description of Operation
The PVCM40D-MPT, micro-processor based, solar 5 stage charge controller connects PV
panels to 12VDC storage batteries. PVCM40D-MPT performs 5 basic functions:
1.
Monitors solar panels to know if it has enough solar voltage to start charging the
battery(s), and when to adjust the PWM charge rates based on solar conditions.
2.
Monitors the battery voltage to know when the battery(s) have completed the bulk
and absorption charging stages and has entered the float stage.
3.
It adjusts the PWM charge algorithms based on the varying load and solar conditions
to maintain maximum charging current throughout the charging process.
4.
It checks the available solar charge voltage every second to make sure there is
sufficient charge voltage. If not, it suspends the charging routine until the solar voltage
increases or drops below 5VDC at which point it enters night or End of Day routine
(EOD).
5.
It compensates for battery temperature and adjusts the charge thresholds voltages
when mounted in the battery area.
3
