Yaskawa Solectria Solar
DOCR-071069
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Figure 5.1
– Specs for Field Wiring to the DCR-1500 Re-Combiner
STEP 1: Disconnect all Equipment Before Wiring to the Re-Combiner
BEFORE removing the Re-
Combiner’s covers:
Open all five DC switches on the Re-Combiner, and
Open the DC switch between the Dynapower DC/DC Converter and the
Battery Subsystem, to disconnect the batteries from the system.
STEP 2: De-Energize the PV Conductors
PV arrays can create hazardous DC voltages. Do not attempt to connect
the PV circuits to the Re-Combiner until all PV conductors are confirmed
to be de-energized.
1. Use a multi-meter to check for DC voltage and confirm that the PV Output Circuit
conductors, coming from the CR1500-26-20S-400 PV Source Circuit Combiners in
the array field, are de-energized.
2. If DC voltage is present, locate the PV Source Circuit Combiners and open all DC
disconnect switches, then re-measure.
3. DO NOT PROCEED until the conductors are confirmed to be de-energized.
FACTORY PRE-WIRED
To XGI 1500 inverters
4/0 AWG Cu conductors
EGC: 4 AWG Cu
FIELD-WIRED
From DPS-500 (-375 or -250)
Max 500 kcmil Cu conductors
2 per pole
EGC: 1/0 AWG Cu
FIELD-WIRED
From PV Source Circuit Combiners
Max: 2 cond x 500 kcmil per pole, Cu or Alum or
1 cond x 750 kcmil per pole, Cu or Alum
EGC: 3 AWG Cu, or 1 AWG Alum
FACTORY PRE-WIRED
Comms wiring harness
to XGI 1500 inverters
