Introduction; Figure 1-1. Eaton Fixed Master Sync Control - Eaton 9315 Installation And Operation Manual

Chapter 1

Introduction

Figure
The Eaton Sync Control maintains the critical load outputs of two separate single
®
UPS systems in synchronization. Use of the Eaton Fixed Master 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 when suitable bypass sources are not available
or when the bypass sources feeding each system are not in sync with each other.
Examples of this condition are two systems supplied by separate generator sets, or
the bypass sources for the two systems are lost.
The additional use of the optional Sync Control Master Interface unit allows multiple
systems to be synched using one Sync Control unit.
Figure 1‐1 shows the front view and Figure 1‐2 shows the interior view of the Eaton
Fixed Master Sync Control. Figure 1‐3 shows the optional Sync Control Master
Interface unit.
Figure 1‐1. Eaton Fixed Master Sync Control
S 1-1
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Eaton 9315/9390/9395 Fixed Master Sync Control Installation and Operation Manual