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the generator to automatically come on to provide battery charging and/or support loads when the batteries
reach a low voltage setpoint or SOC.
It is recommended to set the AGS voltage or low SOC trigger setting higher than the SimpliPHI Inverter Low
Battery Cut Out voltage or SOC level (see settings).
Generators wired to the SimpliPHI Inverter must be rated at 240VAC. Generators can either be wired to the
SimpliPHI Generator Input Port or to the SimpliPHI Bi-directional Grid Port. In grid-connected systems,
generators cannot be wired to the Grid Port. However, the SimpliPHI Generator Input Port may need to be
utilized for purposes other than the generator's connection. AC Coupled systems can be wired to the SimpliPHI
Generator Input Port.
For AC Coupled systems using the Generator Input Port, an external ATS must be incorporated into the
system for generator support.
Please consult your generator installation and operation manual to determine if it requires a normally open
(NO) or normally closed (NC) operation.
There are three functions with this port (Setting 39 on display):
•
Allows generator input as power source.
•
Allows second AC output connection for AC Coupling.
•
Disabled. Default is set to OFF.
9.1 – Preparation
NOTE 1: Refer to the manual of your generator to determine overcurrent protection, wire sizing and
appropriate means of disconnect. The overvoltage category of the AC Input is III.
NOTE 2: Before connecting to grid, a separate AC breaker between the inverter and grid must be installed.
This will ensure the inverter can be securely disconnected during maintenance and fully protected from over
current. The recommended sizing of the AC breaker is 40A/300V.
WARNING!
TO USE APPROPRIATE CABLE FOR GENERATOR CONNECTION. TO REDUCE RISK OF
INJURY, PLEASE USE THE PROPER RECOMMENDED CABLE SIZE AS BELOW.
Table 9.0 –Wiring Sizing
Nominal Grid Voltage
120/240 VAC
© SIMPLIPHI POWER
IT'S VERY IMPORTANT FOR SYSTEM SAFETY AND EFFICIENT OPERATION
Suggested Generator Cabling Requirements
| 22 |
Cable AWG
10 - 6
REV2022007071630
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