006-0006885 08/14/18
Rev H
22 of 48
MINV-4000-1U-28 Guide www.synqor.com
Section IV
Multiple Unit Configuration
General Considerations
The MINV supports two different paralleling schemes for the AC output: expanded paralleling
and redundant paralleling. With expanded paralleling, up to 32 MINV units can be combined to
form high power Single-Phase, split-phase and 3-Phase systems.
With redundant paralleling an electronic breaker on the hot AC output wire provides fault-
tolerant, glitch-free operation should one MINV unit fail. This allows users to add extra MINV
units to the system for N+1 redundancy, or more generally N+M redundancy.
Expanded vs. redundant paralleling is determined by the “AC Output Neutral Wire” option in
the MINV part number. See the table below. Expanded paralleling units cannot be mixed with
redundant parallel units in multi-unit systems.
Ordering Information: Expanded Vs Redundant Parallel
AC Output Neutral Wire option
Example PN
Single Unit (no paralleling)
G
MINV-4000-1U-28-1
G
6S
-
E00
Expanded Parallel
F
MINV-4000-1U-28-1
F
6S
-
E00
Redundant Parallel
R
MINV-4000-1U-28-1
R
6S
-
E00
Note: When combining MINV units into the configurations described in this section, each MINV
must internally have the neutral wire of its AC OUTPUT floating, rather than connected to its
chassis. This requires that all the MINV units have the “F” option for expanded parallel units and
“R” option for redundant parallel units regarding the AC OUTPUT neutral wire connection. Check
the MINV part numbers to be sure this is the case before ordering.
