Eaton 9390 UPS, 9395 UPS, and 9395 SSBM Sync Control Installation and Operation Manual
S
P-164000052 Rev 2
www.eaton.com/powerquality
1-1
Chapter 1
Introduction
The Eaton
®
Sync Control maintains the critical load outputs of either two separate
single Eaton 9390 UPS or Switchboard System Bypass Module (SSBM) systems or
two separate single Eaton 9395 UPS or SSBM systems in synchronization. Use of the
Eaton Sync Control provides the uninterrupted transfer of the load from one load bus
to another by means of downstream, dual-source, solid-state, transfer switches.
Without the load sync option, the two system output (critical load) buses could
become out of phase with each other. This condition occurs if suitable bypass
sources are not available or if the bypass sources feeding each system are not in sync
with each other. Examples of this condition are two systems supplied by separate
diesel generator sets, or the bypass sources for the two systems are lost.
Figure 1‐1 shows the front view and Figure 1‐2 shows the interior view of the Eaton
Sync Control.
Figure 1‐1. Eaton Sync Control
Figure
