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Operating mode
The mode that guarantees the maximum protection for the load is the ON LINE mode, in which the Energy for the
load undergoes a double conversion and is reconstructed at the output in a perfectly sinusoidal manner, with the
frequency and the voltage set by a precise digital control of the DSP regardless of the input (V.F.I.).
*
In addition to the traditional ON LINE double-conversion mode, it is possible to select the following modes:
ECO (LINE INTERACTIVE)
SMART (SMART ACTIVE)
STBYOFF (STAND-BY OFF)
In order to optimise the efficiency, in ECO mode the load is normally powered from the bypass (any interference on
the mains can affect the load). In absence of the mains, or when the mains voltage exceeds its tolerance limit, the
TRI POWER X33 HE commutates to the normal ON LINE double-conversion mode. About five minutes after having
returned within its tolerance limits, the load is commutated back to bypass.
If the user cannot decide which is the most suitable operating mode (between ON LINE and ECO) the choice can be
left to the SMART ACTIVE mode, in which, according to statistical data on the quality of the mains power supply, the
TRI POWER X33 HE autonomously decides in which mode to configure itself.
Finally, in STAND-BY OFF mode, the TRI POWER X33 HE is set to operate as a back-up device:
In presence of the mains power, the load is not powered, whilst in the event of a black-out, the load is powered by
the inverter via the batteries. When the mains power is restored, the load is powered off again. The activation time is
less than 0.5 seconds.
Maintenance bypass (SWMB)
WARNING: Maintenance inside the TRI POWER X33 HE must be carried out by qualified personnel
trained by the manufacturer only. In fact, inside the equipment there may be a voltage even when
the input, output and battery switches are open. Removal of the TRI POWER X33 HE panels by non-
qualified personnel may cause harm to the operator and damage to the equipment.
Listed below are the operations to be performed in order to carry out the maintenance on the equipment with no
interruption of the power supply to the load:
With the mains voltage present, the TRI POWER X33 HE must power the load through the inverter or the
automatic bypass.
N.B.: If the TRI POWER X33 HE is in battery power mode, activating the maintenance bypass may imply an
interruption of the power supply to the load.
Close the maintenance bypass isolator (SWMB) located behind the door. This way, the input is short-
circuited with the output.
Open the input switches (SWIN), the output switches (SWOUT), and the battery fuse holders (SWBATT)
located behind the door. The signal panel is turned off. Wait for the electrolytic condensers on the power
board to discharge (about 20 minutes) and then proceed with the maintenance operations.
N.B.:
During this phase, with the load powered via the maintenance bypass, any disturbance on the TRI
POWER X33 HE power supply line would affect the equipment powered (the load is connected directly to the
mains. The TRI POWER X33 HE is no longer active).
Moreover, the auxiliary "Power share" and "Power
out" sockets, are no longer powered (see "Auxiliary (power share)sockets" in the "USE" section).
Содержание Tri Power X33 HE
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