INSTRUCTION:
The default Working Mode of the inverter is Independent Mode (3
MPPTs). The Working Mode may be configured to operate in Parallel
Mode (1 MPPT) only as an exception.
Every effort should be made to design within one string count
difference for each of the three MPPTs to avoid unnecessary power
clipping. When the input power for one MPPT zone exceeds the
individual maximum allowed (Max PV Power), however the
combined input power is below the inverter maximum input
specifications, the inverter may be set to operate in Parallel Mode (1
MPPT). In this mode, all strings should be the same module type
(Mfg and ratings), same series module count, and same module
orientation (tilt and azimuth).
Parallel Mode is not preferred since it affects the sensitivity of
the AFCI and may increase the possibility of false DC Arc-Fault
trips. Setting to Parallel Mode must be approved in advance by
CPS and must be performed by a CPS Service Technician.
Contact CPS Customer Service for further information.
Select the DC conductor size and material for the inverters according to
the following configuration table:
Table 3-5 DC Terminal Specifications
#14-6AWG (Copper only) when terminating to the
fuse holders. Terminals are 90C rated.
#6~2AWG (Copper or Aluminum) when using the
Bypass Terminal kit accessory. Terminals are 90C
rated.
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