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Troubleshooting
2. Ensure the negative terminal of the monitored battery
bank* is in common/connected with the negative side
of the generator battery. This ensures that the positive
battery voltage (to Terminal 3) and the positive generator
run sense voltage from the generator (to Terminal 2)
have a common negative reference (to Terminal 4), and
are correctly sensed/measured by the AGS.
* Monitored Battery Bank – When autostarting the generator based
on battery voltage (e.g., start VDC), the inverter’s battery bank
must be connected to Terminals 3 (positive) and 4 (negative). If
autostarting based on any other condition (e.g., temperature, amps),
either the inverter battery bank or the generator’s battery may be
used to power the AGS controller. However, if different battery banks
(inverter and generator) are used, the negative terminal of each battery
bank must be connected together to prevent damage to the AGS
(see Section 2.5.1.1).