CPS100 SERIES OPERATION MANUAL
SECTION 8:
Master Slave Operation
Entire Contents Copyright 2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
APS CPS100 Series Power Source Operation Manual Page 181 of 231
8.5.3.1 Wye or Delta Measurements
The MAIN page measurement readings will differ between Wye and Delta output
connections as the Wye measurements show Line-to-Neutral measurement readings
whereas the Delta output connections show Line-to-Line measurement readings. The
difference is shown in the screens below.
Figure 8-1: Measurement Readings Wye Configurations versus Delta Configuration
8.5.4 AC Input Wiring Configurations by Region
When using three CPS100 unit up to 1000W, it is possible to run all units from a single
230Vac phase grid connection in Europe or Asia. For US customers, it is not recommended
to run all three units from a 115Vac grid connection due to grid current limitations of single
phase outlets. For US customers, a 208Vac three phase delta input connection is
recommended.
NOTE: DO NOT operate three CPS100 units on a US 480Vac three phase grid connection
in either delta or Wye input configuration as the AC input voltage per unit CANNOT
support 277Vac L-N or 480Vac L-L.
When using three CPS100 units at 2000W or higher, it is not recommended to use a single-
phase AC input connection due to the high AC input current required for 3 units.
For US customers, a 3-Phase 208V Delta or Wye mains connection is required. Each CPS100
unit requires 208V Line-to-Line input using 2 of 3 phases. Make sure the three power
sources are spread across all three phases.
E.g: Master – A-B / Slave A-C / Slave2 B-C.
For Europe and Asia, a 3-Phase 400V Wye mains connection is required. Each CPS100 unit
requires 230 V Line-to-Neutral input, using a different phase for each unit.
E.g: Master – A-B / Slave A-C / Slave2 B-C.
See diagrams for 208 V~ 3ø and 400 V~ 3ø on pages 182 through 186.
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