Specifications
2033D Specification
2
m. Internal Maintenance Bypass Switch (MBS).
n. Automatic input current walk-in.
o. Remote operation (Start/Stop of Inverter).
p. Automatic UPS restart and load pick-up (after system battery depleted; AC
restored).
q. Programmable external customer contacts (C-Type) dry contacts.
r. RS232C communication for “DiamondLink” monitor software.
s. Web monitor (RJ45)
t. Touch screen person-machine interface.
u. Remote and Local Emergency Power Off (EPO).
v. Battery self test
w. Battery Temperature Compensation
2.1.6 Optional features:
a. Remote monitor panel.
b. Input Isolation Transformer.
c. External Maintenance Bypass Switch.
d. Two parallel redundant system.
2.2 Modes of Operation
The UPS shall be designed to operate continuously at rated capacity as an on-line,
automatic system in the following modes:
2.2.1 Normal - The inverter continuously supplies AC power to the critical load. The
converter converts commercial AC power to regulated DC power which then
serves as the inverter input and, simultaneously, as a float charge input to the
storage battery.
2.2.2 Emergency - In the event of a commercial AC power failure, the inverter shall
derive its input from the system battery, thus providing uninterrupted power to the
critical load. This transition shall be accomplished without any switching or
coupling, and with no interruption of power to the critical load from either a failure
or restoration of the commercial AC power.
2.2.3 Recharge - Subsequent to restoration of commercial AC power, the converter shall
automatically reactivate and provide DC power to the inverter, simultaneously
recharging the system battery. This occurs automatically and without interruption
to the critical load.
2.2.4 Bypass - In the event that the UPS must be taken off line due to an overload
condition or UPS failure, the critical load shall be transferred to the bypass source
via the static switch without interruption of power to the critical load. The static
switch shall only be utilized for automatic emergency transfers. A re-transfer from
bypass to inverter shall be performed automatically in overload conditions. A re-