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24VDC Power Hub 3500 Operator Manual
January 2020
|
Solar Stik
®
, Inc.
38
|
Err 21 - Current sensor issue
This error will not auto-reset.
Disconnect all wires, and then reconnect all wires. Also, make sure the minus on the MPPT solar
charge controller (PV minus/Battery minus) is not bypassing the solar charge controller.
If the error remains, please contact your FSR.
Err 26 - Terminal overheated
Power terminals overheated, check wiring, including the wiring type and type of strands, and/or
fasten bolts if possible.
This error will auto-reset.
Err 28 - Power stage issue
This error will not auto-reset.
Disconnect all wires, and then reconnect all wires. If the error persists the solar charge controller is
probably faulty. Contact FSR.
Err 33 - PV over-voltage
This error will auto-reset after PV-voltage has dropped to safe limit. This error is an indication that
the PV-array configuration with regard to open-circuit voltage is critical. Check the PV panel spec,
configuration, and if required, re-organise panels.
Err 34 - PV over-current
The current from the PV-panel array has exceeded 75A. This error could be generated due to
an internal system fault. Disconnect the Power Hub from all power-sources, wait 3 minutes, and
power-up again. If the error persists the controller is probably faulty, contact your FSR.
Err 38, Err 39 - PV Input shutdown
To protect the battery from over-charging the panel input is shorted.
Possible reasons for this error to occur:
• There is another device connected to the battery, which is configured to a higher voltage.
• The battery is disconnected using a manual switch. Ideally the charger should be switched
off before disconnecting the battery, this avoids a voltage overshoot on the charger output.
If necessary the voltage trip-level for the PV Short protection can be increased by raising the
Equalization voltage set-point (note: equalization does not have to be enabled in this case).
Error recovery:
• Error 38: First disconnect the PV panels and disconnect the battery. Wait for 3 minutes, then
reconnect the battery first and next the panels.
• Error 39: The Power Hub will automatically resume operation once the battery voltage drops
below the max charge level for 1 minute.
If the error persists the one or more solar charge controller is probably faulty. Contact FSR.