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The Exeltech MX inverters
are available in three basic configurations, redundant, upgradeable, and
expandable. Different options and sizes are available in either to fit
varying applications. The Exeltech MX series
inverter modular design incorporates expandable
power levels in any system, as power requirements increase.
In
order to have a fully functional MX inverter, you must have the follow
three things:
Control Signal Source (either a Master Module or at least one Control Card)
Inverter Module (either a Master Module which functions as both a signal
generator and inverter module or at least one control card) Cage Enclosure
(provides connections to battery and AC outputs) The building blocks of the
system are as follows:
1. Power
Module - this is a 1000 Watt slave power inverter. It requires
drive signals from a Master Module or Control Card as described below. This
module is the backbone of the inverter system and will be the majority of
the modules inmost systems.
2. Master
Module - This is a 1000 Watt power inverter which contains all
the electronics necessary to operate. It requires an enclosure to provide
connections to the battery and AC output. This module can also operate up
to 19 slave Power Modules as listed above. If this module is used to
operate the slave modules the system cannot be fully redundant.
3. Control
Card - This card will generate all the signals necessary to
operate up to 20 Power Modules. The card itself will not generate any AC
output power nor does any power flow through it. This card can be
paralleled with another Control Card to generate a redundant set of control
signals to form the basis of a completely redundant inverter system.
4. Alarm
Card - This card can be used in conjunction with a redundant
or non redundant inverter to provide various alarm output signals to the
user via LED's and alarm contact closures. It must be included in redundant
systems to detect failure of control card.
5. Transfer
Switch - Provides all the same functions as the alarm card,
plus provides a relay to transfer AC power to the load from either the
inverter of the utility input. Use only with system 7KW or less.
6. Cage
Assembly - Required on all MX Series Inverters, the
cage provides connections to the battery and provides AC output.
1. N+1
Redundant-Expandable Inverter System: For applications where
reliability and maintainability are paramount, the N+1 redundant system
offers the most cost-effective method of achieving redundancy and to
maintain the system while loads remain on line. All cards (except 12vDC)
are "hot" insertable to allow
maintenance without interrupting the power to critical loads. Designing the
power level with N+1 number of power modules, allows for redundancy without
necessitating the purchase of an entire duplicate system.
2. Upgradeable
Inverter System: The Upgradeable system offers the flexibility to
add a X-fer switch or
alarm card and Full Redundancy for future requirements. A minimum system
with as little as one control card and one power module can be upgraded in
the future to include additional power modules, X-fer
switch or alarm card and an additional control card for full redundancy. By
using one master module a system may be upgraded to include a X-fer switch and additional
power modules, but will not be redundant. 1KW inverters with a X-fer switch use the 7"
or 9" cage.
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