Can you point to a reference to what stage 0 is? This is a new term for
me. So far, have not installed multiple Sol-Ark inverters at one site.
Thank you, Chris
On 11/12/2024 12:50 PM, Poole, Jharen via RE-wrenches wrote:
Our inverters utilize CANbus communications for establishing parallel
operation between multiple Sol-Ark inverters. CANbus communication
operates as a serial communication protocol. In this setup each
inverter in the setup is linked via a parallel communication cable
forming a daisy-chain configuration. If one inverter in the chain
experiences a shutdown due to a fault, the communication chain is
disrupted. Consequently, the other inverters will also power down when
we see this loss, ensuring system protection and safeguarding the
customer’s investment.
Paralleling must be done at a stage 0 they have to sync and that is
done in the pre normal mode, functionality wise having them going into
sync is extremely difficult due to timing issues. It's easier to time
it from a stage 0 than to do it when one unit is already running.
Maintaining synchronization between inverters is critical; if the
inverters were to operate out of parallel it can result in conflicts
between the operation of inverters and desynchronization of the units.
This misalignment can escalate, potentially causing significant damage
to one or more inverters and risking harm to other connected equipment.
Best Regards,
Jharen Poole
Applications Engineer II
972-575-8875
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Christopher Warfel, PE
Entech Engineering, Inc.
POB 871 Block Island, RI 02807
401-447-5773
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