P-164000477 9395P750 kVA / 900 kVA and 1000 kVA / 1100 kVA 6
Revision 002 User’s and Installation Guide
The VMMS feature has three configurable modes of operation: Online mode, Online mode with
VMMS, and High Alert mode. All modes are selectable from the front panel.
VMMS mode supports both distributed bypass and SBM parallel configurations.
In High Alert mode, all idle UPMs go online for one hour. At the end of the hour, the UPS defaults back
to VMMS mode. If the High Alert mode is reactivated during the one hour, the one hour timer will be
restarted.
1.2.10 Optional X-Slot cards
The optional X-Slot cards support several protocols, such as SNMP, HTTP, AS/400®, and Modbus®. See
Chapter 8: “Communication” for additional information.
1.3 Battery system
Although not provided with the UPS, a battery system is required to provide emergency short-term
backup power to safeguard operation during brownouts, blackouts, and other power interruptions. The
battery system should be equipped with lead-acid batteries. An external battery disconnect switch
must be used.
The UPMs may be powered with either a common or separate battery system. In a common battery
system, single and multiple UPMs are powered from one common battery source. In a separate
battery system, multiple UPMs are each powered from separate battery sources.
A supplementary 48VDC shunt trip signal for the battery disconnect device is provided by the UPS, but
is not required for normal operation.
1.4 Basic system configurations
The following basic UPS system configurations are possible:
• Single UPS with two to three UPMs with a common battery and a standalone common battery
system with a battery disconnect
• Single UPS with two to three UPMs with a common battery, a FI-UPM with a common battery, a
standalone common battery system with a battery disconnect.
• Single UPS with two to three UPMs with separate batteries and a standalone separate battery
system with a battery disconnect for each UPM
• Single UPS with two to three UPMs with separate batteries, an FI-UPM with a separate battery ,
and a standalone separate battery system with a battery disconnect for each UPM
• Distributed bypass system with two to five UPSs and a customer-supplied tie cabinet
• Distributed bypass system with two to five UPSs and a customer-supplied tie cabinet
The UPS system configuration can be enhanced by adding optional accessories such as a Remote
Emergency Power-off (REPO) control, RMP II, or X-Slot communication cards.
1.5 Using this manual
This manual describes how to install and operate the Eaton 9395P 750 / 1100 kVA cabinet. Read and
understand the procedures described in this manual to ensure trouble-free installation and operation.
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