Specifications

98AEtypMMSspec_RevB.doc

SP-0011 Rev. B 9/5/09

B. DC Input and associated Battery System

(including battery disconnect circuit breaker).

C. Inverter Section:

1. Solid-state Pulse Width Modulation (PWM) inverter utilizing IGBT

2. Inverter input fuses

3. Isolation transformer

4. Inverter output contactor

D. Bypass Static Switch Circuit (sized to provide fault clearing):

1. Bypass input

2. Bypass static switch with primary contactor.

E. UPS Module Control and Monitoring:

Converter, Inverter and independent automatic bypass static switch circuit

operation control.

F. UPS MMS Control, incorporating:

1. UPS MMS Bypass Operation Control.

2. UPS MMS Parallel Operation Control.

THE UPS MMS Control governs multiple UPS Module parallel operation and

associated UPS MMS operational conditions

G. Interface terminal for connecting control cables between each individual UPS

Module (for UPS MMS Control):

1. Cross Current Control signal cable

2. Inverter Operation Logic signal cable

H. Operation/Display panel incorporating:

1. Graphic Operator Terminal Liquid Crystal Display (LCD): 5.7 inch

Monochrome touch screen with high communication capability. Ethernet

(10Base-T) utilized for Monitoring System Optional Expansion Bus Interface

for field network connectivity available.

2. LED indication.

3. Emergency Power Off (EPO) button (for UPS Module shutdown).

I. UPS Module status and function interface.

1. UPS MMS Bypass Operation Control

2. UPS MMS Parallel Operation Control.

J. Additional UPS Module Monitoring functions:

1. Via Personal Computer (PC) - Mitsubishi Electric Diamond Link Software

2. Via Netcom (SNMP/Web Card)

1.3.2. Critical Load Cabinet (CLC)

The CLC shall be comprised of Power Section and the Monitoring Section. The

CLC shall incorporate a modular design to allow ease of system expansion.

A. CLC Power Section

The Power Section shall consist of the following:

1. UPS Module output circuit breakers - 52L1, 52L2 up to 52L8 depending on

system UPS Module quantity.