The Powerware Hot Sync technology combines digital signal processing and an advanced control
algorithm to provide automatic load sharing and selective tripping in a parallel UPS system. The load
share control algorithms maintain synchronization and load balance by constantly making minute
adjustments to variations in the output power requirements. The modules conform to demand and are not
in conflict with each other for the load. The Powerware Hot Sync systems are capable of paralleling for
both redundancy and capacity.
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The Power Conditioner mode is characterized by the UPS operating in Online mode without a DC source
connected. In Power Conditioner mode, the UPS provides conditioned output voltage and frequency. The
UPS can also support high nonlinear loads without ITHD on the input. The UPS meets the qualifications
outlined in this product specification, except for the conditions below.
When in Power Conditioner mode, the UPS has the following functionality and limitations:
1. The UPS operates in Online mode and the battery alarms are turned off.
2. Because there is no DC source, loss of utility power results in the UPS losing power and shutting
down.
3. The UPS sustains up to -50 % input voltage tolerance, unless the current limit is reached.
4. If the rectifier is turned off, the UPS attempts a transfer to Bypass mode.
5. ESS mode is not available.
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The Frequency Converter mode is characterized by the UPS running without Bypass mode available. The
output frequency can be configured to be different from the standard input frequency (for example, 60 Hz
output, 50 Hz input). The UPS can also support high nonlinear loads without iTHD on the input. The UPS
meets the qualifications outlined in this product specification, except for the conditions below.
When in the Frequency Converter mode, the UPS has the following functionality and limitations:
1. Operation is the same as when in Online mode with no bypass available.
2. Bypass alarms are suppressed.
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The Eaton 93T UPS includes two communication bays for MiniSlot communication cards. MiniSlot cards
are quickly installed and hot-pluggable. For more information, refer to Section
5.4 Communication
interfaces.
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Intelligent Power Manager (IPM) software offers tools for monitoring and managing power supply devices.
For more information, refer to Section
5.4 Communication interfaces.
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The battery system provides short-term emergency backup power to safeguard operation during
blackouts, power outages, or any other power interruptions. By default, the UPS is configured to use
VRLA batteries. If you need to use other types of batteries or other energy storage devices, consult your
local Eaton representative.
EATON 93T USER’S AND INSTALLATION GUIDE 614-40270
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December 2023 www.eaton.eu 2277
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