CPS SCA60KTL-DO/US-480 - Page 52

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Select the DC conductor size and material for the inverters according to
the following configuration table:
Table 3-5 DC Terminal Specifications
Terminal
Acceptable wire range
DC input
(﹢/﹣)
Fuseholder
Screw-clamp
or Bypass
Terminal
M6 Screw
#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.
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
sp
ecifications, 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 M
ode is not preferred since it affects the sensitivity of
the AFCI and
may increases the possibility of false DC Arc-Fault
trip
s. 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 fur
ther information.