February 2020
|
Solar Stik
®
, Inc.
102
|
System Setup and Operation Manual for ATSC MS3 L0
Procedure to Measure PV Array V
mp
with a Power Hub 2400
1. Disconnect one (1) PV array from each of the three (3) charge controllers.
2. Read and record the performance metrics for each PV array as reported by the User Interface
in charge units 0, 1 and 2. The values for the three (3) arrays should be about the same. Use the
instructions in Figure 1 to navigate to the “VIEW CHARGE UNIT STATUS” submenus.
Note:
the Power Hub User Interface will report very low to no charging current, even in full sun, if
the connected batteries are fully charged.
3. Disconnect two (2) of the three (3) PV arrays from the Power Hub. Leave one (1) connected as a
reference standard for comparing the remaining PV arrays.
4. Connect each of the remaining PV arrays and compare the performance values to the reference
standard connected to the other solar charge controller.
5. If no voltage is reported by an array, measure the V
oc
at the array lead connectors. If a voltage
cannot be measured at the lead connectors, replace the Solar Cable.
6. If a PV array appears to be under performing, measure the V
oc
of the array. Follow the directions
for measuring PV array V
oc
, Figure 2.
