February 2020
|
Solar Stik
®
, Inc.
78
|
System Setup and Operation Manual for ATSC MS3 L0
Power Hub Will Not Power Up
If the Power Hub 2500 is not powered up, it probably is not connected to an active 24 VDC battery
and/or there is no PV input. The LCD user interface will power up and be navigable when connected
to either of these power sources. Power from PV arrays will charge batteries once the voltage from
the arrays is 5 volts greater than the battery voltage then continue charging as long as the voltage
from the PV arrays is one (1) volt higher than that of the batteries.
Symptom
Possible Cause(s)
Solution
Battery SOC
displays “--”.
Battery not fully charged for
an extended period or has not
been cycled enough times for
the user interface to calculate
SOC.
Try to charge the battery fully often. Refer
to the setup diagram to make sure that the
System is assembled correctly.
Battery
SOC seems
inaccurate
Power Hub is not the primary
power management device.
Normal operation. Read battery SOC from
primary management device (e.g., PRO-Verter)
or 24VDC Expander Pak 1000s
Not registering
charge current
with panels
operating in sun
1. Power Hub overheated
2. Batteries fully charged (29.0
VDC or near to that)
1. Check internal temperature and “battery”
temperature on user interface. Derating
begins at 104 ºF; diminishing power as
temp increases. Check for dirty, blocked
air filters. Shade the Power Hub to reduce
solar loading. Ensure that the internal
cooling fans are operating (audible when
operating)
2. Normal operation.
LCD inoperative
1. No power to the Hub
2. The LCD screen is
overheated/sunlight
exposure
1. Check connections and make sure
batteries are active.
2. Close lid and allow Power Hub to cool
down.
Note:
The battery SOC and related readouts on the Power Hub 2500 LCD user interface are
precise ONLY if the batteries are connected directly to the Power Hub 2500. If the batteries are
connected to the PRO-Verter (indirectly to the Power Hub 2500), then information about the
battery SOC and other parameters should be obtained from the PRO-Verter user interface or the
optional RMK.
Table 4. Symptoms and Solutions for the Most Common Power Hub Issues
Performance Issues, Causes and Solutions
Power Hub–related Troubleshooting