connects PV panels to 12V or 24V DC storage batteries. The PVCM40D
voltage that powers it.
The PVDM6 display module serves as a remote digital readout for the
PVCM40D and PVDM6 for the PVCM40D charge controllers. The PVCM
charge controllers contain an internal solar current shunt, RJ-45 network jack
and associated internal wiring to provide power and signals to the PVDM6
through a T568A or T568B standard computer network patch cable which plugs
into the RJ-45 jack on the back of the PVDM6. If the wrong configuration
network cable, such as the crossover type, is used then the “error” LED on the
back of the PVDM6 will light indicating that the proper cable needs to be
plugged in for the display to work properly.
The PVDM6’s normal display indication is battery voltage and its associated
LED. The select button allows the user to turn on the displays backlight,
advance to the next display setting, reset the solar and battery amp hour
accumulators, lock display or current setting, or activate scroll mode (see User
Instructions). The PVDM6 will automatically switch back to the battery voltage
display setting after 4 minutes unless the display setting lock is activated. The
backlight will come on for 15 seconds any time the select button is pushed and
will stay on continuously in scroll mode.
If a low battery voltage condition occurs, the display will automatically switch
back to the battery voltage setting (if not already there) and blink the display
reading and Battery voltage LED. If the user accesses other display settings
while in this condition, they will be displayed for 5 seconds then switch back to
battery voltage setting until the low battery voltage problem is corrected. Any
accumulated values may be meaningless if the battery voltage remains below
11V as this is the minimum voltage for the PVDM6 to operate properly. The
PVDM6 display will continue to accumulate amp-hours, they just won’t be
displayed without reverting back to the flashing battery voltage after 5 seconds.
The battery voltage signal tells the PVDM6 module what battery system voltage
it is: 12V, 24V or 48V.
